1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___MATH_MIN_MAX_H 10 #define _LIBCPP___MATH_MIN_MAX_H 11 12 #include <__config> 13 #include <__type_traits/enable_if.h> 14 #include <__type_traits/is_arithmetic.h> 15 #include <__type_traits/is_same.h> 16 #include <__type_traits/promote.h> 17 18 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19 # pragma GCC system_header 20 #endif 21 22 _LIBCPP_BEGIN_NAMESPACE_STD 23 24 namespace __math { 25 26 // fmax 27 28 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float fmax(float __x, float __y) _NOEXCEPT { 29 return __builtin_fmaxf(__x, __y); 30 } 31 32 template <class = int> 33 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double fmax(double __x, double __y) _NOEXCEPT { 34 return __builtin_fmax(__x, __y); 35 } 36 37 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double fmax(long double __x, long double __y) _NOEXCEPT { 38 return __builtin_fmaxl(__x, __y); 39 } 40 41 template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> 42 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type fmax(_A1 __x, _A2 __y) _NOEXCEPT { 43 using __result_type = typename __promote<_A1, _A2>::type; 44 static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), ""); 45 return __math::fmax((__result_type)__x, (__result_type)__y); 46 } 47 48 // fmin 49 50 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float fmin(float __x, float __y) _NOEXCEPT { 51 return __builtin_fminf(__x, __y); 52 } 53 54 template <class = int> 55 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double fmin(double __x, double __y) _NOEXCEPT { 56 return __builtin_fmin(__x, __y); 57 } 58 59 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double fmin(long double __x, long double __y) _NOEXCEPT { 60 return __builtin_fminl(__x, __y); 61 } 62 63 template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> 64 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type fmin(_A1 __x, _A2 __y) _NOEXCEPT { 65 using __result_type = typename __promote<_A1, _A2>::type; 66 static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), ""); 67 return __math::fmin((__result_type)__x, (__result_type)__y); 68 } 69 70 } // namespace __math 71 72 _LIBCPP_END_NAMESPACE_STD 73 74 #endif // _LIBCPP___MATH_MIN_MAX_H 75