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| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h2 class="title" style="clear: both"> |
| <a name="chrono.reference"></a><a class="link" href="reference.html" title="Reference">Reference </a> |
| </h2></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x">Included on the C++0x Recommendation</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io">Chrono I/O</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks">Other Clocks</a></span></dt> |
| </dl></div> |
| <p> |
| As <code class="computeroutput"><span class="identifier">constexpr</span></code> will not be supported |
| by some compilers, it is replaced in the code by BOOST_CHRONO_CONSTEXPR for |
| constexpr functions and BOOST_CHRONO_STATIC_CONSTEXPR for struct/class static |
| fields. The documentation doesn't use these macros. |
| </p> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.reference.cpp0x"></a><a class="link" href="reference.html#chrono.reference.cpp0x" title="Included on the C++0x Recommendation">Included on the C++0x Recommendation</a> |
| </h3></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.chrono_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">duration</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.clock"><code class="computeroutput"><span class="identifier">Clock</span></code> |
| Requirements</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">time_point</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.system_clocks_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">system_clocks</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.chrono_typeof_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">typeof</span><span class="special">/</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| </dl></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_hpp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_hpp" title="Header <boost/chrono.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.chrono_hpp.limitations">Limitations |
| and Extensions</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.chrono_hpp.conf">Configuration |
| Macros</a></span></dt> |
| </dl></div> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">duration</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">time_point</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">system_clocks</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">typeof</span><span class="special">/</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_hpp.limitations"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_hpp.limitations" title="Limitations and Extensions">Limitations |
| and Extensions</a> |
| </h5></div></div></div> |
| <p> |
| Next follows limitation respect to the C++0x recomendations: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| constexpr not tested yet. |
| </li> |
| <li class="listitem"> |
| The recently steady_clock approved is not yet included. |
| </li> |
| </ul></div> |
| <p> |
| The current implementation provides in addition: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| clock error handling as specified in <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3135.html#935" target="_top">clock |
| error handling needs to be specified</a>. |
| </li> |
| <li class="listitem"> |
| process and thread clocks. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_hpp.conf"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_hpp.conf" title="Configuration Macros">Configuration |
| Macros</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_hpp.conf.assert"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_hpp.conf.assert" title="How Assert Behaves?">How |
| Assert Behaves?</a> |
| </h6></div></div></div> |
| <p> |
| When <code class="computeroutput"><span class="identifier">BOOST_NO_STATIC_ASSERT</span></code> |
| is defined, the user can select the way static assertions are reported. |
| Define |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_USES_STATIC_ASSERT</span></code>: |
| define it if you want to use Boost.StaticAssert. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_USES_MPL_ASSERT</span></code>: |
| define it if you want to use Boost.MPL static asertions. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_USES_ARRAY_ASSERT</span></code>: |
| define it if you want to use internal static asertions. |
| </li> |
| </ul></div> |
| <p> |
| The default behavior is as <code class="computeroutput"><span class="identifier">BOOST_CHRONO_USES_ARRAY_ASSERT</span></code> |
| was defined. |
| </p> |
| <p> |
| When <code class="computeroutput"><span class="identifier">BOOST_CHRONO_USES_MPL_ASSERT</span></code> |
| is not defined the following symbols are defined as |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_A_DURATION_REPRESENTATION_CAN_NOT_BE_A_DURATION</span> <span class="special">\</span> |
| <span class="string">"A duration representation can not be a duration"</span> |
| <span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_SECOND_TEMPLATE_PARAMETER_OF_DURATION_MUST_BE_A_STD_RATIO</span> <span class="special">\</span> |
| <span class="string">"Second template parameter of duration must be a boost::ratio"</span> |
| <span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_DURATION_PERIOD_MUST_BE_POSITIVE</span> <span class="special">\</span> |
| <span class="string">"duration period must be positive"</span> |
| <span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_SECOND_TEMPLATE_PARAMETER_OF_TIME_POINT_MUST_BE_A_BOOST_CHRONO_DURATION</span> <span class="special">\</span> |
| <span class="string">"Second template parameter of time_point must be a boost::chrono::duration"</span> |
| </pre> |
| <p> |
| Depending on the static assertion used system you will have an hint |
| of the failing assertion either through the symbol or through the text. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_hpp.conf.header_only"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_hpp.conf.header_only" title="How to Build Boost.Chrono as a Header Only Library?">How |
| to Build Boost.Chrono as a Header Only Library?</a> |
| </h6></div></div></div> |
| <p> |
| When <code class="computeroutput"><span class="identifier">BOOST_CHRONO_HEADER_ONLY</span></code> |
| is defined the lib is header-only. |
| </p> |
| <p> |
| If in addition <code class="computeroutput"><span class="identifier">BOOST_USE_WINDOWS_H</span></code> |
| is defined <code class="computeroutput"><span class="special"><</span><span class="identifier">windows</span><span class="special">.</span><span class="identifier">h</span><span class="special">></span></code> is included, otherwise files in |
| <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">detail</span><span class="special">/</span><span class="identifier">win</span></code> are used to reduce the impact |
| of including <code class="computeroutput"><span class="special"><</span><span class="identifier">windows</span><span class="special">.</span><span class="identifier">h</span><span class="special">></span></code>. |
| </p> |
| </div> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp" title="Header <boost/chrono/duration.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">duration</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp.traits">Time-related |
| Traits</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp.common_type_spe"><code class="computeroutput"><span class="identifier">common_type</span></code> Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp.duration">Class |
| Template <code class="computeroutput"><span class="identifier">duration</span><span class="special"><></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic"><code class="computeroutput"><span class="identifier">duration</span></code> Non-Member Arithmetic</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons"><code class="computeroutput"><span class="identifier">duration</span></code> Non-Member Comparaisons</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_cast">Non-Member |
| Function <code class="computeroutput"><span class="identifier">duration_cast</span><span class="special">(</span><span class="identifier">duration</span><span class="special">)</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs"><code class="computeroutput"><span class="identifier">duration</span></code> typedefs</a></span></dt> |
| </dl></div> |
| <p> |
| This file contains duration specific classes and non-member functions. |
| </p> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span> <span class="special">=</span> <code class="computeroutput"><span class="identifier">ratio</span></code><span class="special"><</span><span class="number">1</span><span class="special">></span> <span class="special">></span> <span class="keyword">class</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">;</span> |
| |
| <span class="special">}</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">struct</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.common_type_spe" title="common_type Specialization"><code class="computeroutput"><span class="identifier">common_type</span></code></a><span class="special"><</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> |
| <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>;</span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="comment">// customization traits</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.treat_as_floating_point" title="Metafunction treat_as_floating_point<>"><code class="computeroutput"><span class="identifier">treat_as_floating_point</span></code></a><span class="special">;</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a><span class="special">;</span> |
| |
| <span class="comment">// duration arithmetic</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">+(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">-(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <span class="identifier">duration</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">*(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <span class="identifier">duration</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">*(</span> |
| <span class="keyword">const</span> <span class="identifier">Rep1</span><span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <span class="identifier">duration</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">/(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">/(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="preprocessor">#ifdef</span> <span class="identifier">BOOST_CHRONO_EXTENSIONS</span> |
| <span class="comment">// Used to get frecuency of events</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">double</span> <span class="keyword">operator</span><span class="special">/(</span> |
| <span class="keyword">const</span> <span class="identifier">Rep1</span><span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="preprocessor">#endif</span> |
| |
| <span class="comment">// duration comparisons</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">></span> <span class="special">(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="comment">// duration_cast</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ToDuration</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">ToDuration</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_cast" title="Non-Member Function duration_cast(duration)"><code class="computeroutput"><span class="identifier">duration_cast</span></code></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="comment">// convenience typedefs</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">nano</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a><span class="special">;</span> <span class="comment">// at least 64 bits needed</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">micro</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">microseconds</span></code></a><span class="special">;</span> <span class="comment">// at least 55 bits needed</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">milliseconds</span></code></a><span class="special">;</span> <span class="comment">// at least 45 bits needed</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">seconds</span></code></a><span class="special">;</span> <span class="comment">// at least 35 bits needed</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least32_t</span><span class="special">,</span> <span class="identifier">ratio</span><span class="special"><</span> <span class="number">60</span><span class="special">></span> <span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">minutes</span></code></a><span class="special">;</span> <span class="comment">// at least 29 bits needed</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least32_t</span><span class="special">,</span> <span class="identifier">ratio</span><span class="special"><</span><span class="number">3600</span><span class="special">></span> <span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">hours</span></code></a><span class="special">;</span> <span class="comment">// at least 23 bits needed</span> |
| |
| <span class="special">}</span> |
| <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits" title="Time-related Traits">Time-related |
| Traits</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits.treat_as_floating_point"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.treat_as_floating_point" title="Metafunction treat_as_floating_point<>">Metafunction |
| <code class="computeroutput"><span class="identifier">treat_as_floating_point</span><span class="special"><></span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">treat_as_floating_point</span> |
| <span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_floating_point</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">></span> <span class="special">{};</span> |
| </pre> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> template uses the |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.treat_as_floating_point" title="Metafunction treat_as_floating_point<>"><code class="computeroutput"><span class="identifier">treat_as_floating_point</span></code></a> trait |
| to help determine if a <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> with one tick period |
| can be converted to another <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> with a different |
| tick period. If <code class="computeroutput"><span class="identifier">treat_as_floating_point</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">>::</span><span class="identifier">value</span></code> |
| is <code class="computeroutput"><span class="keyword">true</span></code>, then <code class="computeroutput"><span class="identifier">Rep</span></code> is a floating-point type and |
| implicit conversions are allowed among <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s. Otherwise, the |
| implicit convertibility depends on the tick periods of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s. If <code class="computeroutput"><span class="identifier">Rep</span></code> is a class type which emulates |
| a floating-point type, the author of <code class="computeroutput"><span class="identifier">Rep</span></code> |
| can specialize <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.treat_as_floating_point" title="Metafunction treat_as_floating_point<>"><code class="computeroutput"><span class="identifier">treat_as_floating_point</span></code></a> so |
| that <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> will treat this |
| <code class="computeroutput"><span class="identifier">Rep</span></code> as if it were a |
| floating-point type. Otherwise <code class="computeroutput"><span class="identifier">Rep</span></code> |
| is assumed to be an integral type, or a class emulating an integral |
| type. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits.duration_values"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values">Class |
| Template <code class="computeroutput"><span class="identifier">duration_values</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">duration_values</span> |
| <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.zero" title="Static Member Function zero()"><code class="computeroutput"><span class="identifier">zero</span></code></a><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.max" title="Static Member Function max()"><code class="computeroutput"><span class="identifier">max</span></code></a><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.min" title="Static Member Function min()"><code class="computeroutput"><span class="identifier">min</span></code></a><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> template uses the |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a> trait to construct |
| special values of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>'s representation |
| (<code class="computeroutput"><span class="identifier">Rep</span></code>). This is done |
| because the representation might be a class type with behavior which |
| requires some other implementation to return these special values. |
| In that case, the author of that class type should specialize <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a> to return |
| the indicated values. |
| </p> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits.duration_values.zero"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.zero" title="Static Member Function zero()">Static |
| Member Function <code class="computeroutput"><span class="identifier">zero</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <span class="identifier">zero</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">Rep</span><span class="special">(</span><span class="number">0</span><span class="special">)</span></code>. <span class="bold"><strong>Note:</strong></span> |
| <code class="computeroutput"><span class="identifier">Rep</span><span class="special">(</span><span class="number">0</span><span class="special">)</span></code> |
| is specified instead of <code class="computeroutput"><span class="identifier">Rep</span><span class="special">()</span></code> since <code class="computeroutput"><span class="identifier">Rep</span><span class="special">()</span></code> may have some other meaning, such |
| as an uninitialized value. |
| </p> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> The value returned corresponds |
| to the additive identity. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits.duration_values.max"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.max" title="Static Member Function max()">Static |
| Member Function <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <span class="identifier">max</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">numeric_limits</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">>::</span><span class="identifier">max</span><span class="special">()</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> The value returned compares |
| greater than zero(). |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.traits.duration_values.min"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values.min" title="Static Member Function min()">Static |
| Member Function <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">Rep</span> <span class="identifier">min</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">numeric_limits</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">>::</span><span class="identifier">lowest</span><span class="special">()</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> The value returned compares |
| less than or equal to <code class="computeroutput"><span class="identifier">zero</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.common_type_spe"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.common_type_spe" title="common_type Specialization"><code class="computeroutput"><span class="identifier">common_type</span></code> Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">struct</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="emphasis"><em>see bellow</em></span><span class="special">></span> <span class="identifier">type</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| The period of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> indicated by this specialization |
| of <code class="computeroutput"><span class="identifier">common_type</span></code> is the |
| greatest common divisor of <code class="computeroutput"><span class="identifier">Period1</span></code> |
| and <code class="computeroutput"><span class="identifier">Period2</span></code>. This can |
| be computed by forming a <code class="computeroutput"><span class="identifier">ratio</span></code> |
| of the greatest common divisor of <code class="computeroutput"><span class="identifier">Period1</span><span class="special">::</span><span class="identifier">num</span></code> |
| and <code class="computeroutput"><span class="identifier">Period2</span><span class="special">::</span><span class="identifier">num</span></code>, and the least common multiple |
| of <code class="computeroutput"><span class="identifier">Period1</span><span class="special">::</span><span class="identifier">den</span></code> and <code class="computeroutput"><span class="identifier">Period2</span><span class="special">::</span><span class="identifier">den</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Note:</strong></span> The typedef type is the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> with the largest tick |
| period possible where both <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> arguments will convert |
| to it without requiring a division operation. The representation of this |
| type is intended to be able to hold any value resulting from this conversion, |
| with the possible exception of round-off error when floating-point <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s are involved (but |
| not truncation error). |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>">Class |
| Template <code class="computeroutput"><span class="identifier">duration</span><span class="special"><></span></code></a> |
| </h5></div></div></div> |
| <p> |
| A <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> measures time between |
| two points in time (<a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>). A <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> has a representation |
| which holds a count of ticks, and a tick period. The tick period is the |
| amount of time which occurs from one tick to another in units of a second. |
| It is expressed as a rational constant using <code class="computeroutput"><span class="identifier">ratio</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">duration</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <span class="identifier">Rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">Period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">private</span><span class="special">:</span> |
| <span class="identifier">rep</span> <span class="identifier">rep_</span><span class="special">;</span> <span class="comment">// exposition only</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="identifier">constexpr</span> <span class="identifier">duration</span><span class="special">();</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">explicit</span> <span class="identifier">duration</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">r</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="identifier">duration</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span> |
| |
| <span class="identifier">constexpr</span> <span class="identifier">rep</span> <span class="identifier">count</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| |
| <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="keyword">operator</span><span class="special">+();</span> |
| <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="keyword">operator</span><span class="special">-();</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">++();</span> |
| <span class="identifier">duration</span> <span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">);</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">--();</span> |
| <span class="identifier">duration</span> <span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">);</span> |
| |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">*=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">/=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">duration</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="identifier">zero</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="identifier">min</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="identifier">max</span><span class="special">();</span> |
| <span class="special">};</span> |
| |
| <span class="special">}}</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">Rep</span></code> must be an arithmetic |
| type, or a class emulating an arithmetic type, compile diagnostic otherwise. |
| If <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> is instantiated with |
| the type of <code class="computeroutput"><span class="identifier">Rep</span></code> being |
| a <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>, compile diagnostic |
| is issued. |
| </p> |
| <p> |
| <code class="computeroutput"><span class="identifier">Period</span></code> must be an instantiation |
| of <code class="computeroutput"><span class="identifier">ratio</span></code>, compile diagnostic |
| otherwise. |
| </p> |
| <p> |
| <code class="computeroutput"><span class="identifier">Period</span><span class="special">::</span><span class="identifier">num</span></code> must be positive, compile diagnostic |
| otherwise. |
| </p> |
| <p> |
| Examples: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">long</span><span class="special">,</span> <code class="computeroutput"><span class="identifier">ratio</span></code><span class="special"><</span><span class="number">60</span><span class="special">></span> <span class="special">></span></code> holds a count of minutes using |
| a long. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">long</span> <span class="keyword">long</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span></code> holds a count of milliseconds |
| using a long long. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">double</span><span class="special">,</span> |
| <code class="computeroutput"><span class="identifier">ratio</span></code><span class="special"><</span><span class="number">1</span><span class="special">,</span> <span class="number">30</span><span class="special">></span> <span class="special">></span></code> holds a count using a double |
| with a tick period of 1/30 second (a tick frequency of 30 Hz). |
| </li> |
| </ul></div> |
| <p> |
| The following members of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> do not throw an exception |
| unless the indicated operations on the representations throw an exception. |
| </p> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_c_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_c_1" title="Constructor duration(const Rep2&)">Constructor |
| <code class="computeroutput"><span class="identifier">duration</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">explicit</span> <span class="identifier">duration</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">r</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> <code class="computeroutput"><span class="identifier">Rep2</span></code> |
| is implicitly convertible to <code class="computeroutput"><span class="identifier">rep</span></code>, |
| and |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">treat_as_floating_point</span><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">value</span></code> |
| is <code class="computeroutput"><span class="keyword">true</span></code>, or |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="special">!</span><span class="identifier">treat_as_floating_point</span><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">value</span> |
| <span class="special">&&</span> <span class="special">!</span><span class="identifier">treat_as_floating_point</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>. |
| </li> |
| </ul></div> |
| <p> |
| If these constraints are not met, this constructor will not participate |
| in overload resolution. <span class="bold"><strong>Note:</strong></span> This |
| requirement prevents construction of an integral-based <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> with a floating-point |
| representation. Such a construction could easily lead to confusion |
| about the value of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Example:</strong></span> |
| </p> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <span class="identifier">d</span><span class="special">(</span><span class="number">3.5</span><span class="special">);</span> <span class="comment">// do not compile</span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <span class="identifier">d</span><span class="special">(</span><span class="number">3</span><span class="special">);</span> <span class="comment">// ok</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Constructs an object of type |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>PostConditions:</strong></span> <code class="computeroutput"><span class="identifier">count</span><span class="special">()</span> <span class="special">==</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">rep</span><span class="special">>(</span><span class="identifier">r</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_c_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_c_2" title="Constructor duration(const duration&)">Constructor |
| <code class="computeroutput"><span class="identifier">duration</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> <code class="computeroutput"><span class="identifier">treat_as_floating_point</span><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">value</span></code>, |
| or <code class="computeroutput"><span class="identifier">ratio_divide</span><span class="special"><</span><span class="identifier">Period2</span><span class="special">,</span> |
| <span class="identifier">period</span><span class="special">>::</span><span class="identifier">type</span><span class="special">::</span><span class="identifier">den</span> <span class="special">==</span> |
| <span class="number">1</span></code>, else this constructor will |
| not participate in overload resolution. <span class="bold"><strong>note</strong></span> |
| This requirement prevents implicit truncation error when converting |
| between integral-based <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s. Such a construction |
| could easily lead to confusion about the value of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Example:</strong></span> |
| </p> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <span class="identifier">ms</span><span class="special">(</span><span class="number">3</span><span class="special">);</span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">micro</span><span class="special">></span> <span class="identifier">us</span> <span class="special">=</span> <span class="identifier">ms</span><span class="special">;</span> <span class="comment">// ok</span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <span class="identifier">ms2</span> <span class="special">=</span> <span class="identifier">us</span><span class="special">;</span> <span class="comment">// do not compile</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Constructs an object of type |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>, constructing <code class="computeroutput"><span class="identifier">rep_</span></code> from <code class="computeroutput"><span class="identifier">duration_cast</span><span class="special"><</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">>(</span><span class="identifier">d</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.count"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.count" title="Member Function count() const">Member |
| Function <code class="computeroutput"><span class="identifier">count</span><span class="special">()</span> |
| <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <span class="identifier">rep</span> <span class="identifier">count</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_p"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_p" title="Member Function operator+() const">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+()</span> |
| <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="keyword">operator</span><span class="special">+()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_m"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_m" title="Member Function operator-() const">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-()</span> |
| <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="keyword">operator</span><span class="special">-()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(-</span><span class="identifier">rep_</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pp" title="Member Function operator++()">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">++()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">++();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="special">++</span><span class="identifier">rep_</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pp2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pp2" title="Member Function operator++(int)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><span class="identifier">rep_</span><span class="special">++)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_mm"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_mm" title="Member Function operator--()">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">--()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">--();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="special">--</span><span class="identifier">rep_</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_mm2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_mm2" title="Member Function operator--(int)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><span class="identifier">rep_</span><span class="special">--)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pa"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_pa" title="Member Function operator+=(const duration&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">+=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_ma"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_ma" title="Member Function operator-=(const duration&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">-=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_moda"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_moda" title="Member Function operator%=(const duration&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">%=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_proda"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_proda" title="Member Function operator*=(const rep&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">*=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">*=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">*=</span> <span class="identifier">rhs</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_da"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_da" title="Member Function operator/=(const rep&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">/=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">/=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">/=</span> <span class="identifier">rhs</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_operator_moda_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_operator_moda_2" title="Member Function operator%=(const rep&)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">%=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">rep_</span> |
| <span class="special">%=</span> <span class="identifier">rhs</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_zero"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_zero" title="Static Member Function zero()">Static |
| Member Function <code class="computeroutput"><span class="identifier">zero</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="identifier">zero</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">zero</span><span class="special">())</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_min"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_min" title="Static Member Function min()">Static |
| Member Function <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="identifier">min</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">min</span><span class="special">()).</span></code> |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration.duration_max"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration.duration_max" title="Static Member Function max()">Static |
| Member Function <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> <span class="identifier">max</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special">(</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a><span class="special"><</span><span class="identifier">rep</span><span class="special">>::</span><span class="identifier">max</span><span class="special">())</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic" title="duration Non-Member Arithmetic"><code class="computeroutput"><span class="identifier">duration</span></code> Non-Member Arithmetic</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_p_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_p_1" title="Non-Member Function operator+(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">CD</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">+=</span> <span class="identifier">rhs</span></code> where <code class="computeroutput"><span class="identifier">CD</span></code> |
| is the type of the return value. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_m_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_m_1" title="Non-Member Function operator-(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">-(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">CD</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">-=</span> <span class="identifier">rhs</span></code> where <code class="computeroutput"><span class="identifier">CD</span></code> |
| is the type of the return value. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">*(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> Let <code class="computeroutput"><span class="identifier">CR</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of <code class="computeroutput"><span class="identifier">Rep1</span></code> and <code class="computeroutput"><span class="identifier">Rep2</span></code>. This function will not participate |
| in overload resolution unless both <code class="computeroutput"><span class="identifier">Rep1</span></code> |
| and <code class="computeroutput"><span class="identifier">Rep2</span></code> are implicitly |
| convertible to <code class="computeroutput"><span class="identifier">CR</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">CR</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>(</span><span class="identifier">d</span><span class="special">)</span> <span class="special">*=</span> <span class="identifier">s</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_prod_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_prod_1" title="Non-Member Function operator*(Rep1,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">*(</span><span class="identifier">Rep1</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">*(</span><span class="keyword">const</span> <span class="identifier">Rep1</span><span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> Let <code class="computeroutput"><span class="identifier">CR</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of <code class="computeroutput"><span class="identifier">Rep1</span></code> and <code class="computeroutput"><span class="identifier">Rep2</span></code>. This function will not participate |
| in overload resolution unless both <code class="computeroutput"><span class="identifier">Rep1</span></code> |
| and <code class="computeroutput"><span class="identifier">Rep2</span></code> are implicitly |
| convertible to <code class="computeroutput"><span class="identifier">CR</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">d</span> |
| <span class="special">*</span> <span class="identifier">s</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_1" title="Non-Member Function operator/(duration,Rep2)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">/(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">Rep2</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">/(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> Let <code class="computeroutput"><span class="identifier">CR</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of <code class="computeroutput"><span class="identifier">Rep1</span></code> and <code class="computeroutput"><span class="identifier">Rep2</span></code>. This function will not participate |
| in overload resolution unless both <code class="computeroutput"><span class="identifier">Rep1</span></code> |
| and <code class="computeroutput"><span class="identifier">Rep2</span></code> are implicitly |
| convertible to <code class="computeroutput"><span class="identifier">CR</span></code>, |
| and <code class="computeroutput"><span class="identifier">Rep2</span></code> is not an |
| instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">CR</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>(</span><span class="identifier">d</span><span class="special">)</span> <span class="special">/=</span> <span class="identifier">s</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_2" title="Non-Member Function operator/(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">/(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">/(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> Let <code class="computeroutput"><span class="identifier">CD</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of the two <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> arguments. Returns |
| <code class="computeroutput"><span class="identifier">CD</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span> |
| <span class="special">/</span> <span class="identifier">CD</span><span class="special">(</span><span class="identifier">rhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_3"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_d_3" title="Non-Member Function operator/(Rep1,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">/(</span><span class="identifier">Rep1</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <p> |
| Included only if BOOST_CHRONO_EXTENSIONS is defined. |
| </p> |
| <p> |
| This overloading could be used to get the frequency of an event counted |
| by <code class="computeroutput"><span class="identifier">Rep1</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">double</span> <span class="keyword">operator</span><span class="special">/(</span><span class="keyword">const</span> <span class="identifier">Rep1</span><span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> Let <code class="computeroutput"><span class="identifier">CR</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of <code class="computeroutput"><span class="identifier">Rep1</span></code> and <code class="computeroutput"><span class="identifier">Rep2</span></code>. This function will not participate |
| in overload resolution unless both <code class="computeroutput"><span class="identifier">Rep1</span></code> |
| and <code class="computeroutput"><span class="identifier">Rep2</span></code> are implicitly |
| convertible to <code class="computeroutput"><span class="identifier">CR</span></code>, |
| and <code class="computeroutput"><span class="identifier">Rep1</span></code> is not an |
| instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">CR</span><span class="special">(</span><span class="identifier">s</span><span class="special">)/</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">CR</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>(</span><span class="identifier">d</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_mod_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_mod_1" title="Non-Member Function operator%(duration,Rep2)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">%(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">Rep2</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Rep2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">%(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Rep2</span><span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Remarks</strong></span> This function will not participate |
| in overload resolution unless Rep2 must be implicitly convertible to |
| CR(Rep1, Rep2) and Rep2 must not be an instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><CR(Rep1,Rep2), |
| Period>(d) %= s. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_mod_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_arithmetic.duration_operator_mod_2" title="Non-Member Function operator%(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">%(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">%(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Remarks</strong></span> This function will not participate |
| in overload resolution unless |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> CD(lhs) %= CD(rhs) |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons" title="duration Non-Member Comparaisons"><code class="computeroutput"><span class="identifier">duration</span></code> Non-Member Comparaisons</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_eq_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_eq_1" title="Non-Member Function operator==(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">==(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> Let <code class="computeroutput"><span class="identifier">CD</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of the two <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> arguments. Returns |
| <code class="computeroutput"><span class="identifier">CD</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span> |
| <span class="special">==</span> <span class="identifier">CD</span><span class="special">(</span><span class="identifier">rhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span></code> |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_neq_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_neq_1" title="Non-Member Function operator!=(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">!=(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special">==</span> |
| <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_lt_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_lt_1" title="Non-Member Function operator<(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special"><(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><</span> <span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> Let <code class="computeroutput"><span class="identifier">CD</span></code> |
| represent the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of the two <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> arguments. Returns |
| <code class="computeroutput"><span class="identifier">CD</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span> |
| <span class="special"><</span> <span class="identifier">CD</span><span class="special">(</span><span class="identifier">rhs</span><span class="special">).</span><span class="identifier">count</span><span class="special">()</span></code> |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_leq_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_leq_1" title="Non-Member Function operator<=(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special"><=(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">rhs</span> <span class="special"><</span> |
| <span class="identifier">lhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_gt_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_gt_1" title="Non-Member Function operator>(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">>(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">></span> <span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">rhs</span> |
| <span class="special"><</span> <span class="identifier">lhs</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_gteq_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp._duration__non_member_comparaisons.duration_operator_gteq_1" title="Non-Member Function operator>=(duration,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">>=(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special"><</span> |
| <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration_cast"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_cast" title="Non-Member Function duration_cast(duration)">Non-Member |
| Function <code class="computeroutput"><span class="identifier">duration_cast</span><span class="special">(</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ToDuration</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">ToDuration</span> <span class="identifier">duration_cast</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> This function will not participate |
| in overload resolution unless <code class="computeroutput"><span class="identifier">ToDuration</span></code> |
| is an instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> Forms <code class="computeroutput"><span class="identifier">CF</span></code> |
| which is a <code class="computeroutput"><span class="identifier">ratio</span></code> resulting |
| from <code class="computeroutput"><span class="identifier">ratio_divide</span><span class="special"><</span><span class="identifier">Period</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">period</span><span class="special">>::</span><span class="identifier">type</span></code>. |
| Let <code class="computeroutput"><span class="identifier">CR</span></code> be the <code class="computeroutput"><span class="identifier">common_type</span></code> of <code class="computeroutput"><span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">rep</span></code>, |
| <code class="computeroutput"><span class="identifier">Rep</span></code>, and <code class="computeroutput"><span class="identifier">intmax_t</span></code>. |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| If <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">num</span> <span class="special">==</span> |
| <span class="number">1</span></code> and <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">den</span> |
| <span class="special">==</span> <span class="number">1</span></code>, |
| then returns <code class="computeroutput"><span class="identifier">ToDuration</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">typename</span> |
| <span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">rep</span><span class="special">>(</span><span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">()))</span> |
| </code> |
| </li> |
| <li class="listitem"> |
| else if <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">num</span> <span class="special">!=</span> |
| <span class="number">1</span></code> and <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">den</span> |
| <span class="special">==</span> <span class="number">1</span></code>, |
| then returns <code class="computeroutput"><span class="identifier">ToDuration</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">typename</span> |
| <span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">rep</span><span class="special">>(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">())</span> |
| <span class="special">*</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">CF</span><span class="special">::</span><span class="identifier">num</span><span class="special">)))</span></code> |
| </li> |
| <li class="listitem"> |
| else if <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">num</span> <span class="special">==</span> |
| <span class="number">1</span></code> and <code class="computeroutput"><span class="identifier">CF</span><span class="special">::</span><span class="identifier">den</span> |
| <span class="special">!=</span> <span class="number">1</span></code>, |
| then returns <code class="computeroutput"><span class="identifier">ToDuration</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">typename</span> |
| <span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">rep</span><span class="special">>(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">())</span> |
| <span class="special">/</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">CF</span><span class="special">::</span><span class="identifier">den</span><span class="special">)))</span></code> |
| </li> |
| <li class="listitem"> |
| else returns <code class="computeroutput"><span class="identifier">ToDuration</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">typename</span> |
| <span class="identifier">ToDuration</span><span class="special">::</span><span class="identifier">rep</span><span class="special">>(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">d</span><span class="special">.</span><span class="identifier">count</span><span class="special">())</span> |
| <span class="special">*</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">CF</span><span class="special">::</span><span class="identifier">num</span><span class="special">)</span> <span class="special">/</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">CR</span><span class="special">>(</span><span class="identifier">CF</span><span class="special">::</span><span class="identifier">den</span><span class="special">)))</span></code> |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Remarks:</strong></span> This function does not rely |
| on any implicit conversions. All conversions must be accomplished through |
| <code class="computeroutput"><span class="keyword">static_cast</span></code>. The implementation |
| avoids all multiplications or divisions when it is known at compile-time |
| that it can be avoided because one or more arguments are <code class="computeroutput"><span class="number">1</span></code>. All intermediate computations are carried |
| out in the widest possible representation and only converted to the destination |
| representation at the final step. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.duration_hpp.duration_typedefs"></a><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">duration</span></code> typedefs</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="comment">// convenience typedefs</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">nano</span><span class="special">></span> <span class="identifier">nanoseconds</span><span class="special">;</span> <span class="comment">// at least 64 bits needed</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">micro</span><span class="special">></span> <span class="identifier">microseconds</span><span class="special">;</span> <span class="comment">// at least 55 bits needed</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">,</span> <span class="identifier">milli</span><span class="special">></span> <span class="identifier">milliseconds</span><span class="special">;</span> <span class="comment">// at least 45 bits needed</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least64_t</span><span class="special">></span> <span class="identifier">seconds</span><span class="special">;</span> <span class="comment">// at least 35 bits needed</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least32_t</span><span class="special">,</span> <code class="computeroutput"><span class="identifier">ratio</span></code><span class="special"><</span> <span class="number">60</span><span class="special">></span> <span class="special">></span> <span class="identifier">minutes</span><span class="special">;</span> <span class="comment">// at least 29 bits needed</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int_least32_t</span><span class="special">,</span> <code class="computeroutput"><span class="identifier">ratio</span></code><span class="special"><</span><span class="number">3600</span><span class="special">></span> <span class="special">></span> <span class="identifier">hours</span><span class="special">;</span> <span class="comment">// at least 23 bits needed</span> |
| </pre> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.clock"></a><a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code> |
| Requirements</a> |
| </h4></div></div></div> |
| <p> |
| A clock represents a bundle consisting of a <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>, a <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>, and a function <code class="computeroutput"><span class="identifier">now</span><span class="special">()</span></code> |
| to get the current <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>. A clock must meet |
| the requirements in the following Table. |
| </p> |
| <p> |
| In this table <code class="computeroutput"><span class="identifier">C1</span></code> and <code class="computeroutput"><span class="identifier">C2</span></code> denote <code class="computeroutput"><span class="identifier">clock</span></code> |
| types. <code class="computeroutput"><span class="identifier">t1</span></code> and <code class="computeroutput"><span class="identifier">t2</span></code> are values returned from <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code> |
| where the call returning <code class="computeroutput"><span class="identifier">t1</span></code> |
| happens before the call returning <code class="computeroutput"><span class="identifier">t2</span></code> |
| and both of these calls happen before <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">time_point</span><span class="special">::</span><span class="identifier">max</span><span class="special">()</span></code>. |
| </p> |
| <div class="table"> |
| <a name="chrono.reference.cpp0x.clock.clock_requirements"></a><p class="title"><b>Table 4.1. Clock Requirements</b></p> |
| <div class="table-contents"><table class="table" summary="Clock Requirements"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| expression |
| </p> |
| </th> |
| <th> |
| <p> |
| return type |
| </p> |
| </th> |
| <th> |
| <p> |
| operational semantics |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">rep</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| An arithmetic type or class emulating an arithmetic type. |
| </p> |
| </td> |
| <td> |
| <p> |
| The representation type of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> and <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">period</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">ratio</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| The tick period of the clock in seconds. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">duration</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">C1</span><span class="special">::</span><span class="identifier">rep</span><span class="special">,</span> |
| <span class="identifier">C1</span><span class="special">::</span><span class="identifier">period</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> type of the |
| <code class="computeroutput"><span class="identifier">clock</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">time_point</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">time_point</span><span class="special"><</span><span class="identifier">C1</span><span class="special">></span> |
| <span class="keyword">or</span> <span class="identifier">chrono</span><span class="special">::</span><span class="identifier">time_point</span><span class="special"><</span><span class="identifier">C2</span><span class="special">,</span> <span class="identifier">C1</span><span class="special">::</span><span class="identifier">duration</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> type of the |
| <code class="computeroutput"><span class="identifier">clock</span></code>. Different |
| clocks are permitted to share a <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> definition |
| if it is valid to compare their time_points by comparing their |
| respective <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s. <code class="computeroutput"><span class="identifier">C1</span></code> and <code class="computeroutput"><span class="identifier">C2</span></code> |
| must refer to the same epoch. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">is_steady</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">constexpr</span> <span class="keyword">bool</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="keyword">true</span></code> if <code class="computeroutput"><span class="identifier">t1</span> <span class="special"><=</span> |
| <span class="identifier">t2</span></code> is always <code class="computeroutput"><span class="keyword">true</span></code>, else <code class="computeroutput"><span class="keyword">false</span></code>. |
| <span class="bold"><strong>Note</strong></span>: A <code class="computeroutput"><span class="identifier">clock</span></code> |
| that can be adjusted backwards is not steady |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">C1</span><span class="special">::</span><span class="identifier">time_point</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Returns a <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> representing |
| the current point in time. |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <br class="table-break"><p> |
| Models of Clock: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock" title="Class high_resolution_clock"><code class="computeroutput"><span class="identifier">high_resolution_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock" title="Class process_real_cpu_clock"><code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock" title="Class process_user_cpu_clock"><code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock" title="Class process_system_cpu_clock"><code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock" title="Class thread_clock"><code class="computeroutput"><span class="identifier">thread_clock</span></code></a> |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp" title="Header <boost/chrono/time_point.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">time_point</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp.common_type_spe2"><code class="computeroutput"><span class="identifier">common_type</span></code> specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point">Class |
| template <code class="computeroutput"><span class="identifier">time_point</span><span class="special"><></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic"><code class="computeroutput"><span class="identifier">time_point</span></code> non-member arithmetic</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons"><code class="computeroutput"><span class="identifier">time_point</span></code> non-member comparisons</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point_cast">Non-Member |
| Function <code class="computeroutput"><span class="identifier">time_point_cast</span><span class="special">(</span><span class="identifier">time_point</span><span class="special">)</span></code></a></span></dt> |
| </dl></div> |
| <p> |
| This file contains <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> specific classes and |
| non-member functions. |
| </p> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span> <span class="special">=</span> <span class="keyword">typename</span> <span class="identifier">Clock</span><span class="special">::</span><span class="identifier">duration</span><span class="special">></span> <span class="keyword">class</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">;</span> |
| |
| <span class="special">}</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">struct</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.common_type_spe" title="common_type Specialization"><code class="computeroutput"><span class="identifier">common_type</span></code></a><span class="special"><</span><span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>,</span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">></span> <span class="special">>;</span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="comment">// time_point arithmetic</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <span class="identifier">Duration2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">-(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">common_type</span><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">-(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> |
| <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="comment">// time_point comparisons</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">></span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="comment">// time_point_cast</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ToDuration</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="identifier">constexpr</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">ToDuration</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point_cast" title="Non-Member Function time_point_cast(time_point)"><code class="computeroutput"><span class="identifier">time_point_cast</span></code></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">t</span><span class="special">);</span> |
| |
| <span class="special">}</span> |
| <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.common_type_spe2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.common_type_spe2" title="common_type specialization"><code class="computeroutput"><span class="identifier">common_type</span></code> specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">struct</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>,</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">></span> <span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">></span> <span class="identifier">type</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| The <code class="computeroutput"><span class="identifier">common_type</span></code> of two |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>s is a <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> with the same <code class="computeroutput"><span class="identifier">clock</span></code> (both have the same <code class="computeroutput"><span class="identifier">clock</span></code>), and the <code class="computeroutput"><span class="identifier">common_type</span></code> |
| of the two <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>">Class |
| template <code class="computeroutput"><span class="identifier">time_point</span><span class="special"><></span></code></a> |
| </h5></div></div></div> |
| <p> |
| A <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> represents a point |
| in time with respect to a specific clock. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">time_point</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <span class="identifier">Clock</span> <span class="identifier">clock</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">Duration</span> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">private</span><span class="special">:</span> |
| <span class="identifier">duration</span> <span class="identifier">d_</span><span class="special">;</span> <span class="comment">// exposition only</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="identifier">constexpr</span> <span class="identifier">time_point</span><span class="special">();</span> |
| <span class="identifier">constexpr</span> <span class="keyword">explicit</span> <span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="comment">// conversions</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">t</span><span class="special">);</span> |
| |
| <span class="comment">// observer</span> |
| |
| <span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="identifier">time_since_epoch</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| |
| <span class="comment">// arithmetic</span> |
| |
| <span class="preprocessor">#ifdef</span> <span class="identifier">BOOST_CHRONO_EXTENSIONS</span> |
| <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="keyword">operator</span><span class="special">+();</span> |
| <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="keyword">operator</span><span class="special">-();</span> |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">++();</span> |
| <span class="identifier">time_point</span> <span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">);</span> |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">--();</span> |
| <span class="identifier">time_point</span> <span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">);</span> |
| |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="preprocessor">#endif</span> |
| |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="comment">// special values</span> |
| |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="identifier">min</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="identifier">max</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| Clock must meet the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> requirements. |
| </p> |
| <p> |
| Duration must be an instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>, compile diagnostic |
| otherwise. |
| </p> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_1" title="Constructor time_point()">Constructor |
| <code class="computeroutput"><span class="identifier">time_point</span><span class="special">()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <span class="identifier">time_point</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Constructs an object of |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>, initializing |
| <code class="computeroutput"><span class="identifier">d_</span></code> with <code class="computeroutput"><span class="identifier">duration</span><span class="special">::</span><span class="identifier">zero</span><span class="special">()</span></code>. |
| This <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> represents the |
| epoch. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_2" title="Constructor time_point(const duration&)">Constructor |
| <code class="computeroutput"><span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Constructs an object of |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>, initializing |
| <code class="computeroutput"><span class="identifier">d_</span></code> with <code class="computeroutput"><span class="identifier">d</span></code>. This <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> represents the |
| epoch <code class="computeroutput"><span class="special">+</span> <span class="identifier">d</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_3"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_c_3" title="Copy Constructor time_point(const time_point&)">Copy |
| Constructor <code class="computeroutput"><span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special">&)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> This function will not participate |
| in overload resolution unless <code class="computeroutput"><span class="identifier">Duration2</span></code> |
| is implicitly convertible to <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Constructs an object of |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>, initializing |
| <code class="computeroutput"><span class="identifier">d_</span></code> with <code class="computeroutput"><span class="identifier">t</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_since_epoch"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_since_epoch" title="Member Function time_since_epoch() const">Member |
| Function <code class="computeroutput"><span class="identifier">time_since_epoch</span><span class="special">()</span> <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <span class="identifier">duration</span> <span class="identifier">time_since_epoch</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">d_</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_p"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_p" title="Member Function operator+() const">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+()</span> |
| <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> <span class="keyword">operator</span><span class="special">+()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_m"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_m" title="Member Function operator-() const">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-()</span> |
| <span class="keyword">const</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">constexpr</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> <span class="keyword">operator</span><span class="special">-()</span> <span class="keyword">const</span><span class="special">;</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">(-</span><span class="identifier">d_</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_pp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_pp" title="Member Function operator++()">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">++()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">++();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="special">++</span><span class="identifier">d_</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_pp2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_pp2" title="Member Function operator++(int)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> <span class="keyword">operator</span><span class="special">++(</span><span class="keyword">int</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">(</span><span class="identifier">d_</span><span class="special">++)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_mm"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_mm" title="Member Function operator--()">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">--()</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">--();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="special">--</span><span class="identifier">d_</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.operator_mm2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.operator_mm2" title="Member Function operator--(int)">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> <span class="keyword">operator</span><span class="special">--(</span><span class="keyword">int</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">(</span><span class="identifier">d_</span><span class="special">--)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_per"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_per" title="Member Function operator+=">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+=</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">r</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">d_</span> |
| <span class="special">+=</span> <span class="identifier">duration</span><span class="special">(</span><span class="identifier">r</span><span class="special">)</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_mer"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_mer" title="Member Function operator-=">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-=</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">rep</span><span class="special">&</span> <span class="identifier">r</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">d_</span> |
| <span class="special">-=</span> <span class="identifier">duration</span><span class="special">(</span><span class="identifier">r</span><span class="special">)</span></code> |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_pe"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_pe" title="Member Function operator+=">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+=</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">d_</span> |
| <span class="special">+=</span> <span class="identifier">d</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_me"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_operator_me" title="Member Function operator-=">Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-=</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">time_point</span><span class="special">&</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> <code class="computeroutput"><span class="identifier">d_</span> |
| <span class="special">-=</span> <span class="identifier">d</span></code> |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_min"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_min" title="Static Member Function min">Static |
| Member Function <code class="computeroutput"><span class="identifier">min</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="identifier">min</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">time_point</span><span class="special">(</span><span class="identifier">duration</span><span class="special">::</span><span class="identifier">min</span><span class="special">())</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point.time_point_max"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point.time_point_max" title="Static Member Function max">Static |
| Member Function <code class="computeroutput"><span class="identifier">max</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="identifier">time_point</span> <span class="identifier">max</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">time_point</span><span class="special">(</span><span class="identifier">duration</span><span class="special">::</span><span class="identifier">max</span><span class="special">())</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic" title="time_point non-member arithmetic"><code class="computeroutput"><span class="identifier">time_point</span></code> non-member arithmetic</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_p_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_p_1" title="Non-Member Function operator+(time_point,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">CT</span><span class="special">(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">+=</span> <span class="identifier">rhs</span></code> where <code class="computeroutput"><span class="identifier">CT</span></code> |
| is the type of the return value. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_p_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_p_2" title="Non-Member Function operator+(duration,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">+(</span><span class="identifier">duration</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>,</span> <span class="identifier">Duration2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep1</span><span class="special">,</span> <span class="identifier">Period1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">rhs</span> |
| <span class="special">+</span> <span class="identifier">lhs</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_m_1"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_m_1" title="Non-Member Function operator-(time_point,duration)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">duration</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep2</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period2</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">></span> <span class="special">>::</span><span class="identifier">type</span><span class="special">></span> |
| <span class="keyword">operator</span><span class="special">-(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep2</span><span class="special">,</span> <span class="identifier">Period2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">lhs</span> |
| <span class="special">+</span> <span class="special">(-</span><span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_m_2"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_arithmetic.time_point_operator_m_2" title="Non-Member Function operator-(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">-(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">typename</span> <code class="computeroutput"><span class="identifier">common_type</span></code><span class="special"><</span><span class="identifier">Duration1</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="keyword">operator</span><span class="special">-(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">lhs</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()</span> <span class="special">-</span> <span class="identifier">rhs</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons" title="time_point non-member comparisons"><code class="computeroutput"><span class="identifier">time_point</span></code> non-member comparisons</a> |
| </h5></div></div></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_eq"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_eq" title="Non-Member Function operator==(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">==(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">lhs</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()</span> <span class="special">==</span> <span class="identifier">rhs</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_neq"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_neq" title="Non-Member Function operator!=(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">!=(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <p> |
| template <class Clock, class Duration1, class Duration2> bool |
| operator!=(const <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><Clock, Duration1>& |
| lhs, const <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><Clock, Duration2>& |
| rhs); |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special">==</span> |
| <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_lt"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_lt" title="Non-Member Function operator<(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special"><(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><</span> <span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> lhs.time_since_epoch() < |
| rhs.time_since_epoch(). |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_leq"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_leq" title="Non-Member Function operator<=(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special"><=(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">rhs</span> <span class="special"><</span> |
| <span class="identifier">lhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_gt"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_gt" title="Non-Member Function operator>(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">>(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <p> |
| template <class Clock, class Duration1, class Duration2> bool |
| operator>(const <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><Clock, Duration1>& |
| lhs, const <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><Clock, Duration2>& |
| rhs); |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="identifier">rhs</span> |
| <span class="special"><</span> <span class="identifier">lhs</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_geq"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp._time_point__non_member_comparisons.time_point_operator_geq" title="Non-Member Function operator>=(time_point,time_point)">Non-Member |
| Function <code class="computeroutput"><span class="keyword">operator</span><span class="special">>=(</span><span class="identifier">time_point</span><span class="special">,</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration2</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special"><</span> |
| <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.time_point_hpp.time_point_cast"></a><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point_cast" title="Non-Member Function time_point_cast(time_point)">Non-Member |
| Function <code class="computeroutput"><span class="identifier">time_point_cast</span><span class="special">(</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ToDuration</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">ToDuration</span><span class="special">></span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point_cast" title="Non-Member Function time_point_cast(time_point)"><code class="computeroutput"><span class="identifier">time_point_cast</span></code></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires:</strong></span> This function will not participate |
| in overload resolution unless <code class="computeroutput"><span class="identifier">ToDuration</span></code> |
| is an instantiation of <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> <code class="computeroutput"><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">ToDuration</span><span class="special">>(</span><a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_cast" title="Non-Member Function duration_cast(duration)"><code class="computeroutput"><span class="identifier">duration_cast</span></code></a><span class="special"><</span><span class="identifier">ToDuration</span><span class="special">>(</span><span class="identifier">t</span><span class="special">.</span><span class="identifier">time_since_epoch</span><span class="special">()))</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp" title="Header <boost/chrono/system_clocks.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">system_clocks</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock">Class |
| <code class="computeroutput"><span class="identifier">system_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.BOOST_CHRONO_HAS_CLOCK_STEADY">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_HAS_CLOCK_STEADY</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock">Class |
| <code class="computeroutput"><span class="identifier">steady_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock">Class |
| <code class="computeroutput"><span class="identifier">high_resolution_clock</span></code></a></span></dt> |
| </dl></div> |
| <p> |
| This file contains the standard clock classes. |
| </p> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="comment">// Clocks</span> |
| <span class="keyword">class</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a><span class="special">;</span> |
| <span class="keyword">class</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a><span class="special">;</span> |
| <span class="keyword">class</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock" title="Class high_resolution_clock"><code class="computeroutput"><span class="identifier">high_resolution_clock</span></code></a><span class="special">;</span> |
| |
| <span class="special">}</span> |
| <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.system_clock"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock">Class |
| <code class="computeroutput"><span class="identifier">system_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> class provides |
| a means of obtaining the current wall-clock time from the system-wide |
| real-time clock. The current time can be obtained by calling <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| Instances of <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">time_point</span></code> |
| can be converted to and from time_t with the <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">to_time_t</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">to_time_point</span><span class="special">()</span></code> functions. If system clock is not steady, |
| a subsequent call to <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code> may return an earlier time than a previous |
| call (e.g. if the operating system clock is manually adjusted, or synchronized |
| with an external clock). |
| </p> |
| <p> |
| The current implementation of <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> is related an epoch |
| (midnight UTC of January 1, 1970), but this is not in the contract. You |
| need to use the static function static |
| </p> |
| <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">time_t</span> <span class="identifier">to_time_t</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special">&</span> <span class="identifier">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| which returns a <code class="computeroutput"><span class="identifier">time_t</span></code> |
| type that is based on midnight UTC of January 1, 1970. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">system_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <span class="emphasis"><em>see bellow</em></span> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">system_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">();</span> <span class="comment">// throws on error</span> |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span><span class="special">);</span> <span class="comment">// never throws</span> |
| |
| <span class="comment">// Map to C API</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">time_t</span> <span class="identifier">to_time_t</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_point</span><span class="special">&</span> <span class="identifier">t</span><span class="special">);</span> |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">from_time_t</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">time_t</span> <span class="identifier">t</span><span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> satisfy the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">duration</span><span class="special">::</span><span class="identifier">min</span><span class="special">()</span> |
| <span class="special"><</span> <span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">duration</span><span class="special">::</span><span class="identifier">zero</span><span class="special">()</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>. |
| </li> |
| <li class="listitem"> |
| The nested duration typedef has a resolution that depends on the |
| one provided by the platform. |
| </li> |
| </ul></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.system_clock.to_time_t"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock.to_time_t" title="Static Member Function to_time_t(time_point)">Static |
| Member Function <code class="computeroutput"><span class="identifier">to_time_t</span><span class="special">(</span><span class="identifier">time_point</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <p> |
| time_t to_time_t(const time_point& t); |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> A <code class="computeroutput"><span class="identifier">time_t</span></code> |
| such that the <code class="computeroutput"><span class="identifier">time_t</span></code> |
| and <code class="computeroutput"><span class="identifier">t</span></code> represent the |
| same point in time, truncated to the courser of the precisions among |
| <code class="computeroutput"><span class="identifier">time_t</span></code> and <code class="computeroutput"><span class="identifier">t</span></code>. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h6 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.system_clock.from_time_t"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock.from_time_t" title="Static Member Function from_time_t(time_t)">Static |
| Member Function <code class="computeroutput"><span class="identifier">from_time_t</span><span class="special">(</span><span class="identifier">time_t</span><span class="special">)</span></code></a> |
| </h6></div></div></div> |
| <pre class="programlisting"><span class="identifier">time_point</span> <span class="identifier">from_time_t</span><span class="special">(</span><span class="identifier">time_t</span> <span class="identifier">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> A <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> such that the |
| <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> and <code class="computeroutput"><span class="identifier">t</span></code> represent the same point in time, |
| truncated to the coarser of the precisions among <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> and <code class="computeroutput"><span class="identifier">t</span></code>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.BOOST_CHRONO_HAS_CLOCK_STEADY"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.BOOST_CHRONO_HAS_CLOCK_STEADY" title="Macro BOOST_CHRONO_HAS_CLOCK_STEADY">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_HAS_CLOCK_STEADY</span></code></a> |
| </h5></div></div></div> |
| <p> |
| Defined if the platform support steady clocks. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.steady_clock"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock">Class |
| <code class="computeroutput"><span class="identifier">steady_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a> satisfy the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a> class provides |
| access to the system-wide steady clock. The current time can be obtained |
| by calling <code class="computeroutput"><span class="identifier">steady_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. There is no fixed relationship between |
| values returned by <code class="computeroutput"><span class="identifier">steady_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code> and wall-clock time. |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#ifdef</span> <span class="identifier">BOOST_HAS_CLOCK_STEADY</span> |
| <span class="keyword">class</span> <span class="identifier">steady_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">steady_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">();</span> <span class="comment">// throws on error</span> |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span><span class="special">);</span> <span class="comment">// never throws</span> |
| <span class="special">};</span> |
| <span class="preprocessor">#endif</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock"></a><a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock" title="Class high_resolution_clock">Class |
| <code class="computeroutput"><span class="identifier">high_resolution_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.high_resolution_clock" title="Class high_resolution_clock"><code class="computeroutput"><span class="identifier">high_resolution_clock</span></code></a> satisfy |
| the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#ifdef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.BOOST_CHRONO_HAS_CLOCK_STEADY" title="Macro BOOST_CHRONO_HAS_CLOCK_STEADY"><code class="computeroutput"><span class="identifier">BOOST_CHRONO_HAS_CLOCK_STEADY</span></code></a> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a> <span class="identifier">high_resolution_clock</span><span class="special">;</span> <span class="comment">// as permitted by [time.clock.hires]</span> |
| <span class="preprocessor">#else</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> <span class="identifier">high_resolution_clock</span><span class="special">;</span> <span class="comment">// as permitted by [time.clock.hires]</span> |
| <span class="preprocessor">#endif</span> |
| </pre> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.cpp0x.chrono_typeof_hpp"></a><a class="link" href="reference.html#chrono.reference.cpp0x.chrono_typeof_hpp" title="Header <boost/chrono/typeof/boost/chrono/chrono.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">typeof</span><span class="special">/</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <p> |
| Register <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><code class="computeroutput"><span class="special"><></span></code> |
| and <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><code class="computeroutput"><span class="special"><></span></code> |
| class templates to <span class="bold"><strong>Boost.Typeof</strong></span>. |
| </p> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.reference.io"></a><a class="link" href="reference.html#chrono.reference.io" title="Chrono I/O">Chrono I/O</a> |
| </h3></div></div></div> |
| <div class="toc"><dl><dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">chrono_io</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt></dl></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp" title="Header <boost/chrono/chrono_io.hpp>">Header <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">chrono_io</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct">Template |
| Class <code class="computeroutput"><span class="identifier">duration_punct</span><span class="special"><></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string">Template |
| Class <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_system_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">system_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_steady_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">steady_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_thread_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">thread_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_real_cpu_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_real_cpu_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_user_cpu_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_user_cpu_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_system_cpu_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_system_cpu_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_cpu_clock"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">></span></code> |
| Specialization</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.manipulators">I/O |
| Manipulators</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.io.chrono_io_hpp.streams">I/O Streams |
| Operations</a></span></dt> |
| </dl></div> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">duration_punct</span><span class="special">;</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special">;</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="identifier">duration_short</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="identifier">duration_long</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">)</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">tp</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">tp</span><span class="special">);</span> |
| |
| <span class="special">}</span> |
| <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.duration_punct"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>">Template |
| Class <code class="computeroutput"><span class="identifier">duration_punct</span><span class="special"><></span></code></a> |
| </h5></div></div></div> |
| <p> |
| The <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> unit names can be customized |
| through the facet: <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a>. <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> unit names come in |
| two varieties: long and short. The default constructed <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> provides names |
| in the long format. These names are English descriptions. Other languages |
| are supported by constructing a <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> with the proper |
| spellings for "hours", "minutes" and "seconds", |
| and their abbreviations (for the short format). |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">duration_punct</span> |
| <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">locale</span><span class="special">::</span><span class="identifier">facet</span> |
| <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">string_type</span><span class="special">;</span> |
| <span class="keyword">enum</span> <span class="special">{</span><span class="identifier">use_long</span><span class="special">,</span> <span class="identifier">use_short</span><span class="special">};</span> |
| |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">locale</span><span class="special">::</span><span class="identifier">id</span> <span class="identifier">id</span><span class="special">;</span> |
| |
| <span class="keyword">explicit</span> <span class="identifier">duration_punct</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">use</span> <span class="special">=</span> <span class="identifier">use_long</span><span class="special">);</span> |
| |
| <span class="identifier">duration_punct</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">use</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">long_seconds</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">long_minutes</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">long_hours</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">short_seconds</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">short_minutes</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">string_type</span><span class="special">&</span> <span class="identifier">short_hours</span><span class="special">);</span> |
| |
| <span class="identifier">duration_punct</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">use</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">duration_punct</span><span class="special">&</span> <span class="identifier">d</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> <span class="identifier">string_type</span> <span class="identifier">short_name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> <span class="identifier">string_type</span> <span class="identifier">long_name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> <span class="identifier">string_type</span> <span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">is_short_name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="keyword">bool</span> <span class="identifier">is_long_name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string" title="Template Class clock_string<>">Template |
| Class <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><></span></code></a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special">;</span> |
| </pre> |
| <p> |
| This template must be specialized for specific clocks. The specialization |
| must define the following functions |
| </p> |
| <pre class="programlisting"><span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| return the clock name, which usually corresponds to the class name. |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> |
| return the textual format of the clock epoch. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_system_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_system_clock" title="clock_string<system_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">system_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">system_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "system_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since Jan 1, 1970" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_steady_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_steady_clock" title="clock_string<steady_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">steady_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="preprocessor">#ifdef</span> <span class="identifier">BOOST_CHRONO_HAS_CLOCK_STEADY</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">steady_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| <span class="preprocessor">#endif</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "steady_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since boot" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_thread_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_thread_clock" title="clock_string<thread_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">thread_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="preprocessor">#if</span> <span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_CHRONO_HAS_THREAD_CLOCK</span><span class="special">)</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">thread_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| <span class="preprocessor">#endif</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "thread_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since thread start-up" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_process_real_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_real_cpu_clock" title="clock_string<process_real_cpu_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_real_cpu_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_real_cpu_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "process_real_cpu_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since process start-up" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_process_user_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_user_cpu_clock" title="clock_string<process_user_cpu_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_user_cpu_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_user_cpu_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "process_user_cpu_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since process start-up" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_process_system_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_system_cpu_clock" title="clock_string<process_system_cpu_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_system_cpu_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_system_cpu_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "process_system_cpu_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since process start-up" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.clock_string_process_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.clock_string_process_cpu_clock" title="clock_string<process_cpu_clock> Specialization"><code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">></span></code> |
| Specialization</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">clock_string</span><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">name</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">></span> <span class="identifier">since</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">name</span><span class="special">()</span></code> |
| returns "process_cpu_clock". <code class="computeroutput"><span class="identifier">clock_string</span><span class="special"><>::</span><span class="identifier">since</span><span class="special">()</span></code> returns " since process start-up" |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.manipulators"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.manipulators" title="I/O Manipulators">I/O |
| Manipulators</a> |
| </h5></div></div></div> |
| <p> |
| The short or long format can be easily chosen by streaming a <code class="computeroutput"><span class="identifier">duration_short</span></code> or <code class="computeroutput"><span class="identifier">duration_long</span></code> |
| manipulator respectively. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="identifier">duration_short</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Set the <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> facet to stream |
| <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>s and <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a>s as abbreviations. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the output stream |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="identifier">duration_long</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> Set the <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> facet to stream |
| durations and time_points as long text. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the output stream |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.io.chrono_io_hpp.streams"></a><a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.streams" title="I/O Streams Operations">I/O Streams |
| Operations</a> |
| </h5></div></div></div> |
| <p> |
| Any <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> can be streamed out |
| to a <code class="computeroutput"><span class="identifier">basic_ostream</span></code>. The |
| run-time value of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> is formatted according |
| to the rules and current format settings for <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><code class="computeroutput"><span class="special">::</span><span class="identifier">rep</span></code>. This is followed by a single space |
| and then the compile-time unit name of the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a>. This unit name is |
| built on the string returned from <code class="computeroutput"><span class="identifier">ratio_string</span><span class="special"><></span></code> and the data used to construct |
| the <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> which was inserted |
| into the stream's locale. If a <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> has not been |
| inserted into the stream's locale, a default constructed <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> will be added |
| to the stream's locale. |
| </p> |
| <p> |
| A <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> is formatted by outputting |
| its internal <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> followed by a string |
| that describes the <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><code class="computeroutput"><span class="special">::</span><span class="identifier">clock</span></code> epoch. This string will vary |
| for each distinct clock, and for each implementation of the supplied |
| clocks. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> outputs the <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> as an abrevieated or |
| long text format depending on the state of the <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> facet. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the output stream |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> <span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">)</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> reads a <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a> from the input stream. |
| If a format error is found, the input stream state will be set to <code class="computeroutput"><span class="identifier">failbit</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the input stream |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">tp</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> outputs the <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> as an abrevieated |
| or long text format depending on the state of the <a class="link" href="reference.html#chrono.reference.io.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a> facet. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the output stream |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> |
| <span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration</span><span class="special">>&</span> <span class="identifier">tp</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effects:</strong></span> reads a <a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a> from the input stream. |
| If a format error is found, the input stream state will be set to <code class="computeroutput"><span class="identifier">failbit</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Returns:</strong></span> the input stream |
| </p> |
| </div> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.reference.other_clocks"></a><a class="link" href="reference.html#chrono.reference.other_clocks" title="Other Clocks">Other Clocks</a> |
| </h3></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp">Header |
| <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">process_cpu_clocks</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.thread_clock_hpp">Header |
| <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">thread_clock</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a></span></dt> |
| </dl></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp" title="Header <boost/chrono/process_cpu_clocks.hpp>">Header |
| <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">process_cpu_clocks</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times">Class |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_io"><code class="computeroutput"><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span></code> Input/Output</a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code> Specialization for <code class="computeroutput"><span class="identifier">times</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_numeric_limits"><code class="computeroutput"><span class="identifier">numeric_limits</span></code> Specialization for <code class="computeroutput"><span class="identifier">times</span></code></a></span></dt> |
| </dl></div> |
| <p> |
| Knowing how long a program takes to execute is useful in both test and |
| production environments. It is also helpful if such timing information |
| is broken down into real (wall clock) time, CPU time spent by the user, |
| and CPU time spent by the operating system servicing user requests. |
| </p> |
| <p> |
| Process clocks don't include the time spent by the child process. |
| </p> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">class</span> <span class="identifier">process_real_cpu_clock</span><span class="special">;</span> |
| <span class="keyword">class</span> <span class="identifier">process_user_cpu_clock</span><span class="special">;</span> |
| <span class="keyword">class</span> <span class="identifier">process_system_cpu_clock</span><span class="special">;</span> |
| <span class="keyword">class</span> <span class="identifier">process_cpu_clock</span><span class="special">;</span> |
| |
| <span class="keyword">struct</span> <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span><span class="special">;</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> |
| <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> |
| <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">duration_values</span><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span><span class="special">>;</span> |
| <span class="special">}</span> <span class="special">}</span> |
| <span class="keyword">namespace</span> <span class="identifier">std</span> <span class="special">{</span> |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">class</span> <span class="identifier">numeric_limits</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span><span class="special">>;</span> |
| <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock" title="Class process_real_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock" title="Class process_real_cpu_clock"><code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a> satisfy |
| the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock" title="Class process_real_cpu_clock"><code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a> class |
| provides access to the real process wall-clock steady clock, i.e. the |
| real CPU-time clock of the calling process. The process relative current |
| time can be obtained by calling <code class="computeroutput"><span class="identifier">process_real_cpu_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">process_real_cpu_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">process_real_cpu_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">throws</span> <span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock" title="Class process_user_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock" title="Class process_user_cpu_clock"><code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a> satisfy |
| the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock" title="Class process_user_cpu_clock"><code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a> class |
| provides access to the user CPU-time steady clock of the calling process. |
| The process relative user current time can be obtained by calling <code class="computeroutput"><span class="identifier">process_user_cpu_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">process_user_cpu_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">process_user_cpu_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">throws</span> <span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock" title="Class process_system_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock" title="Class process_system_cpu_clock"><code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a> satisfy |
| the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock" title="Class process_system_cpu_clock"><code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a> class |
| provides access to the system CPU-time steady clockof the calling process. |
| The process relative system current time can be obtained by calling |
| <code class="computeroutput"><span class="identifier">process_system_cpu_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">process_system_cpu_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">process_system_cpu_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">throws</span> <span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.process_cpu_clock"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_cpu_clock" title="Class process_cpu_clock">Class |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span></code> can |
| be considered as a <code class="computeroutput"><span class="identifier">tuple</span><span class="special"><</span><span class="identifier">process_real_cpu_clock</span><span class="special">,</span> <span class="identifier">process_user_cpu_clock</span><span class="special">,</span> <span class="identifier">process_system_cpu_clock</span><span class="special">></span></code>. |
| </p> |
| <p> |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span></code> provides |
| a thin wrapper around the operating system's process time API. For POSIX-like |
| systems, that's the times() function, while for Windows, it's the <code class="computeroutput"><span class="identifier">GetProcessTimes</span><span class="special">()</span></code> |
| function. |
| </p> |
| <p> |
| The process relative real, user and system current time can be obtained |
| at once by calling <code class="computeroutput"><span class="identifier">process_clocks</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">process_cpu_clock</span> |
| <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">struct</span> <span class="identifier">times</span> <span class="special">;</span> |
| |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration" title="Class Template duration<>"><code class="computeroutput"><span class="identifier">duration</span></code></a><span class="special"><</span><span class="identifier">times</span><span class="special">,</span> <span class="identifier">nano</span><span class="special">></span> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">throws</span> <span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.times"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times" title="Class process_cpu_clock::times">Class |
| <code class="computeroutput"><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span></code></a> |
| </h5></div></div></div> |
| <p> |
| This class is the representation of the <code class="computeroutput"><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">duration</span></code> |
| class. As such it needs to implements the arithmetic operators. |
| </p> |
| <pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">times</span> <span class="special">:</span> <span class="identifier">arithmetic</span><span class="special"><</span><span class="identifier">times</span><span class="special">,</span> |
| <span class="identifier">multiplicative</span><span class="special"><</span><span class="identifier">times</span><span class="special">,</span> <span class="identifier">process_real_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span><span class="special">,</span> |
| <span class="identifier">less_than_comparable</span><span class="special"><</span><span class="identifier">times</span><span class="special">></span> <span class="special">></span> <span class="special">></span> |
| <span class="special">{</span> |
| <span class="identifier">process_real_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">real</span><span class="special">;</span> <span class="comment">// real (i.e wall clock) time</span> |
| <span class="identifier">process_user_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">user</span><span class="special">;</span> <span class="comment">// user cpu time</span> |
| <span class="identifier">process_system_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">system</span><span class="special">;</span> <span class="comment">// system cpu time</span> |
| |
| <span class="identifier">times</span><span class="special">();</span> |
| <span class="identifier">times</span><span class="special">(</span> |
| <span class="identifier">process_real_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">r</span><span class="special">,</span> |
| <span class="identifier">process_user_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">u</span><span class="special">,</span> |
| <span class="identifier">process_system_cpu_clock</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">s</span><span class="special">);</span> |
| |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| |
| <span class="identifier">times</span> <span class="keyword">operator</span><span class="special">+=(</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">times</span> <span class="keyword">operator</span><span class="special">-=(</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">times</span> <span class="keyword">operator</span><span class="special">*=(</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="identifier">times</span> <span class="keyword">operator</span><span class="special">/=(</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><(</span><span class="identifier">times</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.times_io"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_io" title="process_cpu_clock::times Input/Output"><code class="computeroutput"><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span></code> Input/Output</a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special"><<(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">os</span><span class="special">,</span> |
| <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effect</strong></span>: Output each part separated by |
| ';' and sourrounded by '{', '}'. <span class="bold"><strong>Throws</strong></span>: |
| None. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Traits</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> |
| <span class="keyword">operator</span><span class="special">>>(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span><span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span><span class="special">>&</span> <span class="identifier">is</span><span class="special">,</span> |
| <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Effect</strong></span>: overrides the value of rhs if |
| the input stream has the format "{r;u;s}". Otherwise, set the |
| input stream state as failbit | eofbit. <span class="bold"><strong>Throws</strong></span>: |
| None. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.times_duration_values"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_duration_values" title="duration_values Specialization for times"><code class="computeroutput"><span class="identifier">duration_values</span></code> Specialization for <code class="computeroutput"><span class="identifier">times</span></code></a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">struct</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.traits.duration_values" title="Class Template duration_values"><code class="computeroutput"><span class="identifier">duration_values</span></code></a><span class="special"><</span><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="identifier">zero</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="identifier">max</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="identifier">min</span><span class="special">();</span> |
| <span class="special">};</span> |
| </pre> |
| <p> |
| The <code class="computeroutput"><span class="identifier">times</span></code> specific functions |
| <code class="computeroutput"><span class="identifier">zero</span><span class="special">()</span></code>, |
| <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code> |
| and <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code> |
| uses the relative functions on the representation of each component. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.process_cpu_clocks_hpp.times_numeric_limits"></a><a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.times_numeric_limits" title="numeric_limits Specialization for times"><code class="computeroutput"><span class="identifier">numeric_limits</span></code> Specialization for <code class="computeroutput"><span class="identifier">times</span></code></a> |
| </h5></div></div></div> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">std</span> <span class="special">{</span> |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">class</span> <span class="identifier">numeric_limits</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span><span class="special">></span> <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">process_cpu_clock</span><span class="special">::</span><span class="identifier">times</span> <span class="identifier">Rep</span><span class="special">;</span> |
| |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">is_specialized</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">Rep</span> <span class="identifier">min</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">Rep</span> <span class="identifier">max</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="identifier">Rep</span> <span class="identifier">lowest</span><span class="special">();</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">int</span> <span class="identifier">digits</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">int</span> <span class="identifier">digits10</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">is_signed</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">is_integer</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">is_exact</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">int</span> <span class="identifier">radix</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| </pre> |
| <p> |
| The <code class="computeroutput"><span class="identifier">times</span></code> specialization |
| functions <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code>, |
| <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code> |
| and <code class="computeroutput"><span class="identifier">lowest</span><span class="special">()</span></code> |
| uses the relative functions on the representation of each component. |
| </p> |
| <p> |
| Notes |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code> |
| returns the tuple of mins. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code> |
| returns the tuple of maxs. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">lowest</span><span class="special">()</span></code> |
| returns the tuple of lowests. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">digits</span></code> is the sum |
| of (binary) digits. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">digits10</span></code> is the sum |
| of digits10s. |
| </li> |
| </ul></div> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.reference.other_clocks.thread_clock_hpp"></a><a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp" title="Header <boost/chrono/thread_clock.hpp>">Header |
| <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">chrono</span><span class="special">/</span><span class="identifier">thread_clock</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code></a> |
| </h4></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_HAS_THREAD_CLOCK">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_HAS_THREAD_CLOCK</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_THREAD_CLOCK_IS_STEADY">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_THREAD_CLOCK_IS_STEADY</span></code></a></span></dt> |
| <dt><span class="section"><a href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock">Class |
| <code class="computeroutput"><span class="identifier">thread_clock</span></code></a></span></dt> |
| </dl></div> |
| <p> |
| Knowing the time a thread takes to execute is useful in both test and production |
| environments. |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_HAS_THREAD_CLOCK</span> |
| <span class="preprocessor">#define</span> <span class="identifier">BOOST_CHRONO_THREAD_CLOCK_IS_STEADY</span> |
| <span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">chrono</span> <span class="special">{</span> |
| |
| <span class="keyword">class</span> <span class="identifier">thread_clock</span><span class="special">;</span> |
| |
| <span class="special">}</span> <span class="special">}</span> |
| </pre> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_HAS_THREAD_CLOCK"></a><a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_HAS_THREAD_CLOCK" title="Macro BOOST_CHRONO_HAS_THREAD_CLOCK">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_HAS_THREAD_CLOCK</span></code></a> |
| </h5></div></div></div> |
| <p> |
| This macro is defined if the platform supports thread clocks. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_THREAD_CLOCK_IS_STEADY"></a><a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.BOOST_CHRONO_THREAD_CLOCK_IS_STEADY" title="Macro BOOST_CHRONO_THREAD_CLOCK_IS_STEADY">Macro |
| <code class="computeroutput"><span class="identifier">BOOST_CHRONO_THREAD_CLOCK_IS_STEADY</span></code></a> |
| </h5></div></div></div> |
| <p> |
| This macro is defined if the platform has a thread clock. Its value is |
| true if it is steady and false otherwise. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="chrono.reference.other_clocks.thread_clock_hpp.thread_clock"></a><a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock" title="Class thread_clock">Class |
| <code class="computeroutput"><span class="identifier">thread_clock</span></code></a> |
| </h5></div></div></div> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock" title="Class thread_clock"><code class="computeroutput"><span class="identifier">thread_clock</span></code></a> satisfy the <a class="link" href="reference.html#chrono.reference.cpp0x.clock" title="Clock Requirements"><code class="computeroutput"><span class="identifier">Clock</span></code></a> |
| requirements. |
| </p> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock" title="Class thread_clock"><code class="computeroutput"><span class="identifier">thread_clock</span></code></a> class provides |
| access to the real thread wall-clock, i.e. the real CPU-time clock of |
| the calling thread. The thread relative current time can be obtained |
| by calling <code class="computeroutput"><span class="identifier">thread_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">thread_clock</span> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="keyword">typedef</span> <a class="link" href="reference.html#chrono.reference.cpp0x.duration_hpp.duration_typedefs" title="duration typedefs"><code class="computeroutput"><span class="identifier">nanoseconds</span></code></a> <span class="identifier">duration</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">rep</span> <span class="identifier">rep</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">duration</span><span class="special">::</span><span class="identifier">period</span> <span class="identifier">period</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">chrono</span><span class="special">::</span><a class="link" href="reference.html#chrono.reference.cpp0x.time_point_hpp.time_point" title="Class template time_point<>"><code class="computeroutput"><span class="identifier">time_point</span></code></a><span class="special"><</span><span class="identifier">thread_clock</span><span class="special">></span> <span class="identifier">time_point</span><span class="special">;</span> |
| <span class="keyword">static</span> <span class="identifier">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_steady</span> <span class="special">=</span> <span class="identifier">BOOST_CHRONO_THREAD_CLOCK_IS_STEADY</span><span class="special">;</span> |
| |
| <span class="keyword">static</span> <span class="identifier">time_point</span> <span class="identifier">now</span><span class="special">(</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">throws</span> <span class="special">);</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2008 Howard Hinnant<br>Copyright © 2006, 2008 Beman Dawes<br>Copyright © 2009-2011 Vicente J. Botet |
| Escriba<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
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