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
24namespace __math {
25
26// fmax
27
28_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float fmax(float __x, float __y) _NOEXCEPT {
29  return __builtin_fmaxf(__x, __y);
30}
31
32template <class = int>
33_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double fmax(double __x, double __y) _NOEXCEPT {
34  return __builtin_fmax(__x, __y);
35}
36
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
41template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
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
50_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float fmin(float __x, float __y) _NOEXCEPT {
51  return __builtin_fminf(__x, __y);
52}
53
54template <class = int>
55_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double fmin(double __x, double __y) _NOEXCEPT {
56  return __builtin_fmin(__x, __y);
57}
58
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
63template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
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