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libcxx/include/__cmath/copysign.h
- This file was added.
| //===----------------------------------------------------------------------===// | |||||
| // | |||||
| // 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___CMATH_COPYSIGN_H | |||||
| #define _LIBCPP___CMATH_COPYSIGN_H | |||||
| #include <__config> | |||||
| #include <__type_traits/enable_if.h> | |||||
| #include <__type_traits/is_arithmetic.h> | |||||
| #include <__type_traits/promote.h> | |||||
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | |||||
| # pragma GCC system_header | |||||
| #endif | |||||
| _LIBCPP_BEGIN_NAMESPACE_STD | |||||
| inline _LIBCPP_INLINE_VISIBILITY float copysign(float __x, float __y) _NOEXCEPT { | |||||
| return __builtin_copysignf(__x, __y); | |||||
| } | |||||
| template <class = int> | |||||
| _LIBCPP_HIDE_FROM_ABI double copysign(double __x, double __y) _NOEXCEPT { | |||||
| return __builtin_copysign(__x, __y); | |||||
| } | |||||
| inline _LIBCPP_INLINE_VISIBILITY long double copysign(long double __x, long double __y) _NOEXCEPT { | |||||
| return __builtin_copysignl(__x, __y); | |||||
| } | |||||
| template <class _Tp, | |||||
| class _Up, | |||||
| __enable_if_t< std::is_arithmetic<_Tp>::value && std::is_arithmetic<_Up>::value, int> = 0> | |||||
| inline _LIBCPP_INLINE_VISIBILITY typename __promote<_Tp, _Up>::type copysign(_Tp __x, _Up __y) _NOEXCEPT { | |||||
| using __result_type = typename __promote<_Tp, _Up>::type; | |||||
| return std::copysign(static_cast<__result_type>(__x), static_cast<__result_type>(__y)); | |||||
| } | |||||
| _LIBCPP_END_NAMESPACE_STD | |||||
| using std::copysign; | |||||
| #endif // _LIBCPP___CMATH_COPYSIGN_H | |||||