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 typename __promote<_A1, _A2>::type pow(_A1 __x, _A2 __y) _NOEXCEPT { 162 using __result_type = typename __promote<_A1, _A2>::type; 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 172