| //===----------------------------------------------------------------------===// |
| // |
| // 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_FDIM_H |
| #define _LIBCPP___MATH_FDIM_H |
| |
| #include <__config> |
| #include <__type_traits/enable_if.h> |
| #include <__type_traits/is_arithmetic.h> |
| #include <__type_traits/is_same.h> |
| #include <__type_traits/promote.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace __math { |
| |
| inline _LIBCPP_HIDE_FROM_ABI float fdim(float __x, float __y) _NOEXCEPT { return __builtin_fdimf(__x, __y); } |
| |
| template <class = int> |
| _LIBCPP_HIDE_FROM_ABI double fdim(double __x, double __y) _NOEXCEPT { |
| return __builtin_fdim(__x, __y); |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI long double fdim(long double __x, long double __y) _NOEXCEPT { |
| return __builtin_fdiml(__x, __y); |
| } |
| |
| template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> |
| inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type fdim(_A1 __x, _A2 __y) _NOEXCEPT { |
| using __result_type = typename __promote<_A1, _A2>::type; |
| static_assert((!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value)), ""); |
| return __math::fdim((__result_type)__x, (__result_type)__y); |
| } |
| |
| } // namespace __math |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___MATH_FDIM_H |
