1e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 2e78f53d1SNikolas Klauser // 3e78f53d1SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e78f53d1SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 5e78f53d1SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e78f53d1SNikolas Klauser // 7e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 8e78f53d1SNikolas Klauser 9*ce777190SNikolas Klauser #ifndef _LIBCPP___CXX03___MATH_FDIM_H 10*ce777190SNikolas Klauser #define _LIBCPP___CXX03___MATH_FDIM_H 11e78f53d1SNikolas Klauser 1273fbae83SNikolas Klauser #include <__cxx03/__config> 1373fbae83SNikolas Klauser #include <__cxx03/__type_traits/enable_if.h> 1473fbae83SNikolas Klauser #include <__cxx03/__type_traits/is_arithmetic.h> 1573fbae83SNikolas Klauser #include <__cxx03/__type_traits/is_same.h> 1673fbae83SNikolas Klauser #include <__cxx03/__type_traits/promote.h> 17e78f53d1SNikolas Klauser 18e78f53d1SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19e78f53d1SNikolas Klauser # pragma GCC system_header 20e78f53d1SNikolas Klauser #endif 21e78f53d1SNikolas Klauser 22e78f53d1SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 23e78f53d1SNikolas Klauser 24e78f53d1SNikolas Klauser namespace __math { 25e78f53d1SNikolas Klauser 26e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI float fdim(float __x, float __y) _NOEXCEPT { return __builtin_fdimf(__x, __y); } 27e78f53d1SNikolas Klauser 28e78f53d1SNikolas Klauser template <class = int> 29e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI double fdim(double __x, double __y) _NOEXCEPT { 30e78f53d1SNikolas Klauser return __builtin_fdim(__x, __y); 31e78f53d1SNikolas Klauser } 32e78f53d1SNikolas Klauser 33e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI long double fdim(long double __x, long double __y) _NOEXCEPT { 34e78f53d1SNikolas Klauser return __builtin_fdiml(__x, __y); 35e78f53d1SNikolas Klauser } 36e78f53d1SNikolas Klauser 37e78f53d1SNikolas Klauser template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> 38e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type fdim(_A1 __x, _A2 __y) _NOEXCEPT { 39e78f53d1SNikolas Klauser using __result_type = typename __promote<_A1, _A2>::type; 40e78f53d1SNikolas Klauser static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), ""); 41e78f53d1SNikolas Klauser return __math::fdim((__result_type)__x, (__result_type)__y); 42e78f53d1SNikolas Klauser } 43e78f53d1SNikolas Klauser 44e78f53d1SNikolas Klauser } // namespace __math 45e78f53d1SNikolas Klauser 46e78f53d1SNikolas Klauser _LIBCPP_END_NAMESPACE_STD 47e78f53d1SNikolas Klauser 48*ce777190SNikolas Klauser #endif // _LIBCPP___CXX03___MATH_FDIM_H 49