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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_EXPONENTIAL_FUNCTIONS_H
10#define _LIBCPP___MATH_EXPONENTIAL_FUNCTIONS_H
11
12#include <__config>
13#include <__type_traits/enable_if.h>
14#include <__type_traits/is_arithmetic.h>
15#include <__type_traits/is_integral.h>
16#include <__type_traits/is_same.h>
17#include <__type_traits/promote.h>
18
19#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
20# pragma GCC system_header
21#endif
22
23_LIBCPP_BEGIN_NAMESPACE_STD
24
25namespace __math {
26
27// exp
28
29inline _LIBCPP_HIDE_FROM_ABI float exp(float __x) _NOEXCEPT { return __builtin_expf(__x); }
30
31template <class = int>
32_LIBCPP_HIDE_FROM_ABI double exp(double __x) _NOEXCEPT {
33 return __builtin_exp(__x);
34}
35
36inline _LIBCPP_HIDE_FROM_ABI long double exp(long double __x) _NOEXCEPT { return __builtin_expl(__x); }
37
38template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
39inline _LIBCPP_HIDE_FROM_ABI double exp(_A1 __x) _NOEXCEPT {
40 return __builtin_exp((double)__x);
41}
42
43// frexp
44
45inline _LIBCPP_HIDE_FROM_ABI float frexp(float __x, int* __e) _NOEXCEPT { return __builtin_frexpf(__x, __e); }
46
47template <class = int>
48_LIBCPP_HIDE_FROM_ABI double frexp(double __x, int* __e) _NOEXCEPT {
49 return __builtin_frexp(__x, __e);
50}
51
52inline _LIBCPP_HIDE_FROM_ABI long double frexp(long double __x, int* __e) _NOEXCEPT {
53 return __builtin_frexpl(__x, __e);
54}
55
56template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
57inline _LIBCPP_HIDE_FROM_ABI double frexp(_A1 __x, int* __e) _NOEXCEPT {
58 return __builtin_frexp((double)__x, __e);
59}
60
61// ldexp
62
63inline _LIBCPP_HIDE_FROM_ABI float ldexp(float __x, int __e) _NOEXCEPT { return __builtin_ldexpf(__x, __e); }
64
65template <class = int>
66_LIBCPP_HIDE_FROM_ABI double ldexp(double __x, int __e) _NOEXCEPT {
67 return __builtin_ldexp(__x, __e);
68}
69
70inline _LIBCPP_HIDE_FROM_ABI long double ldexp(long double __x, int __e) _NOEXCEPT {
71 return __builtin_ldexpl(__x, __e);
72}
73
74template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
75inline _LIBCPP_HIDE_FROM_ABI double ldexp(_A1 __x, int __e) _NOEXCEPT {
76 return __builtin_ldexp((double)__x, __e);
77}
78
79// exp2
80
81inline _LIBCPP_HIDE_FROM_ABI float exp2(float __x) _NOEXCEPT { return __builtin_exp2f(__x); }
82
83template <class = int>
84_LIBCPP_HIDE_FROM_ABI double exp2(double __x) _NOEXCEPT {
85 return __builtin_exp2(__x);
86}
87
88inline _LIBCPP_HIDE_FROM_ABI long double exp2(long double __x) _NOEXCEPT { return __builtin_exp2l(__x); }
89
90template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
91inline _LIBCPP_HIDE_FROM_ABI double exp2(_A1 __x) _NOEXCEPT {
92 return __builtin_exp2((double)__x);
93}
94
95// expm1
96
97inline _LIBCPP_HIDE_FROM_ABI float expm1(float __x) _NOEXCEPT { return __builtin_expm1f(__x); }
98
99template <class = int>
100_LIBCPP_HIDE_FROM_ABI double expm1(double __x) _NOEXCEPT {
101 return __builtin_expm1(__x);
102}
103
104inline _LIBCPP_HIDE_FROM_ABI long double expm1(long double __x) _NOEXCEPT { return __builtin_expm1l(__x); }
105
106template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
107inline _LIBCPP_HIDE_FROM_ABI double expm1(_A1 __x) _NOEXCEPT {
108 return __builtin_expm1((double)__x);
109}
110
111// scalbln
112
113inline _LIBCPP_HIDE_FROM_ABI float scalbln(float __x, long __y) _NOEXCEPT { return __builtin_scalblnf(__x, __y); }
114
115template <class = int>
116_LIBCPP_HIDE_FROM_ABI double scalbln(double __x, long __y) _NOEXCEPT {
117 return __builtin_scalbln(__x, __y);
118}
119
120inline _LIBCPP_HIDE_FROM_ABI long double scalbln(long double __x, long __y) _NOEXCEPT {
121 return __builtin_scalblnl(__x, __y);
122}
123
124template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
125inline _LIBCPP_HIDE_FROM_ABI double scalbln(_A1 __x, long __y) _NOEXCEPT {
126 return __builtin_scalbln((double)__x, __y);
127}
128
129// scalbn
130
131inline _LIBCPP_HIDE_FROM_ABI float scalbn(float __x, int __y) _NOEXCEPT { return __builtin_scalbnf(__x, __y); }
132
133template <class = int>
134_LIBCPP_HIDE_FROM_ABI double scalbn(double __x, int __y) _NOEXCEPT {
135 return __builtin_scalbn(__x, __y);
136}
137
138inline _LIBCPP_HIDE_FROM_ABI long double scalbn(long double __x, int __y) _NOEXCEPT {
139 return __builtin_scalbnl(__x, __y);
140}
141
142template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
143inline _LIBCPP_HIDE_FROM_ABI double scalbn(_A1 __x, int __y) _NOEXCEPT {
144 return __builtin_scalbn((double)__x, __y);
145}
146
147// pow
148
149inline _LIBCPP_HIDE_FROM_ABI float pow(float __x, float __y) _NOEXCEPT { return __builtin_powf(__x, __y); }
150
151template <class = int>
152_LIBCPP_HIDE_FROM_ABI double pow(double __x, double __y) _NOEXCEPT {
153 return __builtin_pow(__x, __y);
154}
155
156inline _LIBCPP_HIDE_FROM_ABI long double pow(long double __x, long double __y) _NOEXCEPT {
157 return __builtin_powl(__x, __y);
158}
159
160template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
161inline _LIBCPP_HIDE_FROM_ABI __promote_t<_A1, _A2> pow(_A1 __x, _A2 __y) _NOEXCEPT {
162 using __result_type = __promote_t<_A1, _A2>;
163 static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), "");
164 return __math::pow((__result_type)__x, (__result_type)__y);
165}
166
167} // namespace __math
168
169_LIBCPP_END_NAMESPACE_STD
170
171#endif // _LIBCPP___MATH_EXPONENTIAL_FUNCTIONS_H