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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___MATH_LOGARITHMS_H10#define _LIBCPP___MATH_LOGARITHMS_H11 12#include <__config>13#include <__type_traits/enable_if.h>14#include <__type_traits/is_integral.h>15 16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)17# pragma GCC system_header18#endif19 20_LIBCPP_BEGIN_NAMESPACE_STD21 22namespace __math {23 24// log25 26inline _LIBCPP_HIDE_FROM_ABI float log(float __x) _NOEXCEPT { return __builtin_logf(__x); }27 28template <class = int>29_LIBCPP_HIDE_FROM_ABI double log(double __x) _NOEXCEPT {30 return __builtin_log(__x);31}32 33inline _LIBCPP_HIDE_FROM_ABI long double log(long double __x) _NOEXCEPT { return __builtin_logl(__x); }34 35template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>36inline _LIBCPP_HIDE_FROM_ABI double log(_A1 __x) _NOEXCEPT {37 return __builtin_log((double)__x);38}39 40// log1041 42inline _LIBCPP_HIDE_FROM_ABI float log10(float __x) _NOEXCEPT { return __builtin_log10f(__x); }43 44template <class = int>45_LIBCPP_HIDE_FROM_ABI double log10(double __x) _NOEXCEPT {46 return __builtin_log10(__x);47}48 49inline _LIBCPP_HIDE_FROM_ABI long double log10(long double __x) _NOEXCEPT { return __builtin_log10l(__x); }50 51template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>52inline _LIBCPP_HIDE_FROM_ABI double log10(_A1 __x) _NOEXCEPT {53 return __builtin_log10((double)__x);54}55 56// ilogb57 58inline _LIBCPP_HIDE_FROM_ABI int ilogb(float __x) _NOEXCEPT { return __builtin_ilogbf(__x); }59 60template <class = int>61_LIBCPP_HIDE_FROM_ABI int ilogb(double __x) _NOEXCEPT {62 return __builtin_ilogb(__x);63}64 65inline _LIBCPP_HIDE_FROM_ABI int ilogb(long double __x) _NOEXCEPT { return __builtin_ilogbl(__x); }66 67template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>68inline _LIBCPP_HIDE_FROM_ABI int ilogb(_A1 __x) _NOEXCEPT {69 return __builtin_ilogb((double)__x);70}71 72// log1p73 74inline _LIBCPP_HIDE_FROM_ABI float log1p(float __x) _NOEXCEPT { return __builtin_log1pf(__x); }75 76template <class = int>77_LIBCPP_HIDE_FROM_ABI double log1p(double __x) _NOEXCEPT {78 return __builtin_log1p(__x);79}80 81inline _LIBCPP_HIDE_FROM_ABI long double log1p(long double __x) _NOEXCEPT { return __builtin_log1pl(__x); }82 83template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>84inline _LIBCPP_HIDE_FROM_ABI double log1p(_A1 __x) _NOEXCEPT {85 return __builtin_log1p((double)__x);86}87 88// log289 90inline _LIBCPP_HIDE_FROM_ABI float log2(float __x) _NOEXCEPT { return __builtin_log2f(__x); }91 92template <class = int>93_LIBCPP_HIDE_FROM_ABI double log2(double __x) _NOEXCEPT {94 return __builtin_log2(__x);95}96 97inline _LIBCPP_HIDE_FROM_ABI long double log2(long double __x) _NOEXCEPT { return __builtin_log2l(__x); }98 99template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>100inline _LIBCPP_HIDE_FROM_ABI double log2(_A1 __x) _NOEXCEPT {101 return __builtin_log2((double)__x);102}103 104// logb105 106inline _LIBCPP_HIDE_FROM_ABI float logb(float __x) _NOEXCEPT { return __builtin_logbf(__x); }107 108template <class = int>109_LIBCPP_HIDE_FROM_ABI double logb(double __x) _NOEXCEPT {110 return __builtin_logb(__x);111}112 113inline _LIBCPP_HIDE_FROM_ABI long double logb(long double __x) _NOEXCEPT { return __builtin_logbl(__x); }114 115template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>116inline _LIBCPP_HIDE_FROM_ABI double logb(_A1 __x) _NOEXCEPT {117 return __builtin_logb((double)__x);118}119 120} // namespace __math121 122_LIBCPP_END_NAMESPACE_STD123 124#endif // _LIBCPP___MATH_LOGARITHMS_H125