15f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 25f757f3fSDimitry Andric // 35f757f3fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 45f757f3fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 55f757f3fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65f757f3fSDimitry Andric // 75f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 85f757f3fSDimitry Andric 95f757f3fSDimitry Andric #ifndef _LIBCPP___MATH_COPYSIGN_H 105f757f3fSDimitry Andric #define _LIBCPP___MATH_COPYSIGN_H 115f757f3fSDimitry Andric 125f757f3fSDimitry Andric #include <__config> 135f757f3fSDimitry Andric #include <__type_traits/enable_if.h> 145f757f3fSDimitry Andric #include <__type_traits/is_arithmetic.h> 155f757f3fSDimitry Andric #include <__type_traits/promote.h> 165f757f3fSDimitry Andric #include <limits> 175f757f3fSDimitry Andric 185f757f3fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 195f757f3fSDimitry Andric # pragma GCC system_header 205f757f3fSDimitry Andric #endif 215f757f3fSDimitry Andric 225f757f3fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 235f757f3fSDimitry Andric 245f757f3fSDimitry Andric namespace __math { 255f757f3fSDimitry Andric 265f757f3fSDimitry Andric // copysign 275f757f3fSDimitry Andric 28*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float copysign(float __x, float __y) _NOEXCEPT { 295f757f3fSDimitry Andric return ::__builtin_copysignf(__x, __y); 305f757f3fSDimitry Andric } 315f757f3fSDimitry Andric 32*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double copysign(long double __x, long double __y) _NOEXCEPT { 335f757f3fSDimitry Andric return ::__builtin_copysignl(__x, __y); 345f757f3fSDimitry Andric } 355f757f3fSDimitry Andric 365f757f3fSDimitry Andric template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> 37*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type copysign(_A1 __x, _A2 __y) _NOEXCEPT { 385f757f3fSDimitry Andric return ::__builtin_copysign(__x, __y); 395f757f3fSDimitry Andric } 405f757f3fSDimitry Andric 415f757f3fSDimitry Andric } // namespace __math 425f757f3fSDimitry Andric 435f757f3fSDimitry Andric _LIBCPP_END_NAMESPACE_STD 445f757f3fSDimitry Andric 455f757f3fSDimitry Andric #endif // _LIBCPP___MATH_COPYSIGN_H 46