| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___MATH_LOGARITHMS_H |
| #define _LIBCPP___MATH_LOGARITHMS_H |
| |
| #include <__config> |
| #include <__type_traits/enable_if.h> |
| #include <__type_traits/is_integral.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace __math { |
| |
| // log |
| |
| inline _LIBCPP_HIDE_FROM_ABI float log(float __x) _NOEXCEPT { return __builtin_logf(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double log(double __x) _NOEXCEPT { |
| return __builtin_log(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double log(long double __x) _NOEXCEPT { return __builtin_logl(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI double log(_A1 __x) _NOEXCEPT { |
| return __builtin_log((double)__x); |
| } |
| |
| // log10 |
| |
| inline _LIBCPP_HIDE_FROM_ABI float log10(float __x) _NOEXCEPT { return __builtin_log10f(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double log10(double __x) _NOEXCEPT { |
| return __builtin_log10(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double log10(long double __x) _NOEXCEPT { return __builtin_log10l(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI double log10(_A1 __x) _NOEXCEPT { |
| return __builtin_log10((double)__x); |
| } |
| |
| // ilogb |
| |
| inline _LIBCPP_HIDE_FROM_ABI int ilogb(float __x) _NOEXCEPT { return __builtin_ilogbf(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double ilogb(double __x) _NOEXCEPT { |
| return __builtin_ilogb(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI int ilogb(long double __x) _NOEXCEPT { return __builtin_ilogbl(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI int ilogb(_A1 __x) _NOEXCEPT { |
| return __builtin_ilogb((double)__x); |
| } |
| |
| // log1p |
| |
| inline _LIBCPP_HIDE_FROM_ABI float log1p(float __x) _NOEXCEPT { return __builtin_log1pf(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double log1p(double __x) _NOEXCEPT { |
| return __builtin_log1p(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double log1p(long double __x) _NOEXCEPT { return __builtin_log1pl(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI double log1p(_A1 __x) _NOEXCEPT { |
| return __builtin_log1p((double)__x); |
| } |
| |
| // log2 |
| |
| inline _LIBCPP_HIDE_FROM_ABI float log2(float __x) _NOEXCEPT { return __builtin_log2f(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double log2(double __x) _NOEXCEPT { |
| return __builtin_log2(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double log2(long double __x) _NOEXCEPT { return __builtin_log2l(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI double log2(_A1 __x) _NOEXCEPT { |
| return __builtin_log2((double)__x); |
| } |
| |
| // logb |
| |
| inline _LIBCPP_HIDE_FROM_ABI float logb(float __x) _NOEXCEPT { return __builtin_logbf(__x); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double logb(double __x) _NOEXCEPT { |
| return __builtin_logb(__x); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double logb(long double __x) _NOEXCEPT { return __builtin_logbl(__x); } |
| |
| template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI double logb(_A1 __x) _NOEXCEPT { |
| return __builtin_logb((double)__x); |
| } |
| |
| } // namespace __math |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___MATH_LOGARITHMS_H |