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
fmax(float __x,float __y)28 _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float fmax(float __x, float __y) _NOEXCEPT {
29 return __builtin_fmaxf(__x, __y);
30 }
31
32 template <class = int>
fmax(double __x,double __y)33 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double fmax(double __x, double __y) _NOEXCEPT {
34 return __builtin_fmax(__x, __y);
35 }
36
fmax(long double __x,long double __y)37 _LIBCPP_NODISCARD_EXT 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>
fmax(_A1 __x,_A2 __y)42 _LIBCPP_NODISCARD_EXT 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
fmin(float __x,float __y)50 _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float fmin(float __x, float __y) _NOEXCEPT {
51 return __builtin_fminf(__x, __y);
52 }
53
54 template <class = int>
fmin(double __x,double __y)55 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double fmin(double __x, double __y) _NOEXCEPT {
56 return __builtin_fmin(__x, __y);
57 }
58
fmin(long double __x,long double __y)59 _LIBCPP_NODISCARD_EXT 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>
fmin(_A1 __x,_A2 __y)64 _LIBCPP_NODISCARD_EXT 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