1 // -*- C++ -*- 2 //===---------------------------- numbers ---------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP_NUMBERS 11 #define _LIBCPP_NUMBERS 12 13 /* 14 numbers synopsis 15 16 namespace std::numbers { 17 template<class T> inline constexpr T e_v = unspecified; 18 template<class T> inline constexpr T log2e_v = unspecified; 19 template<class T> inline constexpr T log10e_v = unspecified; 20 template<class T> inline constexpr T pi_v = unspecified; 21 template<class T> inline constexpr T inv_pi_v = unspecified; 22 template<class T> inline constexpr T inv_sqrtpi_v = unspecified; 23 template<class T> inline constexpr T ln2_v = unspecified; 24 template<class T> inline constexpr T ln10_v = unspecified; 25 template<class T> inline constexpr T sqrt2_v = unspecified; 26 template<class T> inline constexpr T sqrt3_v = unspecified; 27 template<class T> inline constexpr T inv_sqrt3_v = unspecified; 28 template<class T> inline constexpr T egamma_v = unspecified; 29 template<class T> inline constexpr T phi_v = unspecified; 30 31 template<floating_point T> inline constexpr T e_v<T> = see below; 32 template<floating_point T> inline constexpr T log2e_v<T> = see below; 33 template<floating_point T> inline constexpr T log10e_v<T> = see below; 34 template<floating_point T> inline constexpr T pi_v<T> = see below; 35 template<floating_point T> inline constexpr T inv_pi_v<T> = see below; 36 template<floating_point T> inline constexpr T inv_sqrtpi_v<T> = see below; 37 template<floating_point T> inline constexpr T ln2_v<T> = see below; 38 template<floating_point T> inline constexpr T ln10_v<T> = see below; 39 template<floating_point T> inline constexpr T sqrt2_v<T> = see below; 40 template<floating_point T> inline constexpr T sqrt3_v<T> = see below; 41 template<floating_point T> inline constexpr T inv_sqrt3_v<T> = see below; 42 template<floating_point T> inline constexpr T egamma_v<T> = see below; 43 template<floating_point T> inline constexpr T phi_v<T> = see below; 44 45 inline constexpr double e = e_v<double>; 46 inline constexpr double log2e = log2e_v<double>; 47 inline constexpr double log10e = log10e_v<double>; 48 inline constexpr double pi = pi_v<double>; 49 inline constexpr double inv_pi = inv_pi_v<double>; 50 inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>; 51 inline constexpr double ln2 = ln2_v<double>; 52 inline constexpr double ln10 = ln10_v<double>; 53 inline constexpr double sqrt2 = sqrt2_v<double>; 54 inline constexpr double sqrt3 = sqrt3_v<double>; 55 inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>; 56 inline constexpr double egamma = egamma_v<double>; 57 inline constexpr double phi = phi_v<double>; 58 } 59 */ 60 61 #include <__config> 62 63 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS) 64 65 #include <concepts> 66 #include <type_traits> 67 #include <version> 68 69 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 70 #pragma GCC system_header 71 #endif 72 73 _LIBCPP_PUSH_MACROS 74 #include <__undef_macros> 75 76 _LIBCPP_BEGIN_NAMESPACE_STD 77 78 namespace numbers { 79 80 template <class T> 81 inline constexpr bool __false = false; 82 83 template <class T> 84 struct __illformed 85 { 86 static_assert(__false<T>, "A program that instantiates a primary template of a mathematical constant variable template is ill-formed."); 87 }; 88 89 template <class T> inline constexpr T e_v = __illformed<T>{}; 90 template <class T> inline constexpr T log2e_v = __illformed<T>{}; 91 template <class T> inline constexpr T log10e_v = __illformed<T>{}; 92 template <class T> inline constexpr T pi_v = __illformed<T>{}; 93 template <class T> inline constexpr T inv_pi_v = __illformed<T>{}; 94 template <class T> inline constexpr T inv_sqrtpi_v = __illformed<T>{}; 95 template <class T> inline constexpr T ln2_v = __illformed<T>{}; 96 template <class T> inline constexpr T ln10_v = __illformed<T>{}; 97 template <class T> inline constexpr T sqrt2_v = __illformed<T>{}; 98 template <class T> inline constexpr T sqrt3_v = __illformed<T>{}; 99 template <class T> inline constexpr T inv_sqrt3_v = __illformed<T>{}; 100 template <class T> inline constexpr T egamma_v = __illformed<T>{}; 101 template <class T> inline constexpr T phi_v = __illformed<T>{}; 102 103 template <floating_point T> inline constexpr T e_v<T> = 2.718281828459045235360287471352662; 104 template <floating_point T> inline constexpr T log2e_v<T> = 1.442695040888963407359924681001892; 105 template <floating_point T> inline constexpr T log10e_v<T> = 0.434294481903251827651128918916605; 106 template <floating_point T> inline constexpr T pi_v<T> = 3.141592653589793238462643383279502; 107 template <floating_point T> inline constexpr T inv_pi_v<T> = 0.318309886183790671537767526745028; 108 template <floating_point T> inline constexpr T inv_sqrtpi_v<T> = 0.564189583547756286948079451560772; 109 template <floating_point T> inline constexpr T ln2_v<T> = 0.693147180559945309417232121458176; 110 template <floating_point T> inline constexpr T ln10_v<T> = 2.302585092994045684017991454684364; 111 template <floating_point T> inline constexpr T sqrt2_v<T> = 1.414213562373095048801688724209698; 112 template <floating_point T> inline constexpr T sqrt3_v<T> = 1.732050807568877293527446341505872; 113 template <floating_point T> inline constexpr T inv_sqrt3_v<T> = 0.577350269189625764509148780501957; 114 template <floating_point T> inline constexpr T egamma_v<T> = 0.577215664901532860606512090082402; 115 template <floating_point T> inline constexpr T phi_v<T> = 1.618033988749894848204586834365638; 116 117 inline constexpr double e = e_v<double>; 118 inline constexpr double log2e = log2e_v<double>; 119 inline constexpr double log10e = log10e_v<double>; 120 inline constexpr double pi = pi_v<double>; 121 inline constexpr double inv_pi = inv_pi_v<double>; 122 inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>; 123 inline constexpr double ln2 = ln2_v<double>; 124 inline constexpr double ln10 = ln10_v<double>; 125 inline constexpr double sqrt2 = sqrt2_v<double>; 126 inline constexpr double sqrt3 = sqrt3_v<double>; 127 inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>; 128 inline constexpr double egamma = egamma_v<double>; 129 inline constexpr double phi = phi_v<double>; 130 131 } // namespace numbers 132 133 _LIBCPP_END_NAMESPACE_STD 134 135 _LIBCPP_POP_MACROS 136 137 #endif //_LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS) 138 139 #endif // _LIBCPP_NUMBERS 140
Indexes created Thu Oct 22 00:27:13 UTC 2026