1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 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 16namespace 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 <__assert> // all public C++ headers provide the assertion handler 62#include <__config> 63#include <concepts> 64#include <type_traits> 65#include <version> 66 67#if _LIBCPP_STD_VER > 17 68 69#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 70# pragma GCC system_header 71#endif 72 73_LIBCPP_BEGIN_NAMESPACE_STD 74 75namespace numbers { 76 77template <class _Tp> 78inline constexpr bool __false = false; 79 80template <class _Tp> 81struct __illformed 82{ 83 static_assert(__false<_Tp>, "A program that instantiates a primary template of a mathematical constant variable template is ill-formed."); 84}; 85 86template <class _Tp> inline constexpr _Tp e_v = __illformed<_Tp>{}; 87template <class _Tp> inline constexpr _Tp log2e_v = __illformed<_Tp>{}; 88template <class _Tp> inline constexpr _Tp log10e_v = __illformed<_Tp>{}; 89template <class _Tp> inline constexpr _Tp pi_v = __illformed<_Tp>{}; 90template <class _Tp> inline constexpr _Tp inv_pi_v = __illformed<_Tp>{}; 91template <class _Tp> inline constexpr _Tp inv_sqrtpi_v = __illformed<_Tp>{}; 92template <class _Tp> inline constexpr _Tp ln2_v = __illformed<_Tp>{}; 93template <class _Tp> inline constexpr _Tp ln10_v = __illformed<_Tp>{}; 94template <class _Tp> inline constexpr _Tp sqrt2_v = __illformed<_Tp>{}; 95template <class _Tp> inline constexpr _Tp sqrt3_v = __illformed<_Tp>{}; 96template <class _Tp> inline constexpr _Tp inv_sqrt3_v = __illformed<_Tp>{}; 97template <class _Tp> inline constexpr _Tp egamma_v = __illformed<_Tp>{}; 98template <class _Tp> inline constexpr _Tp phi_v = __illformed<_Tp>{}; 99 100template <floating_point _Tp> inline constexpr _Tp e_v<_Tp> = 2.718281828459045235360287471352662; 101template <floating_point _Tp> inline constexpr _Tp log2e_v<_Tp> = 1.442695040888963407359924681001892; 102template <floating_point _Tp> inline constexpr _Tp log10e_v<_Tp> = 0.434294481903251827651128918916605; 103template <floating_point _Tp> inline constexpr _Tp pi_v<_Tp> = 3.141592653589793238462643383279502; 104template <floating_point _Tp> inline constexpr _Tp inv_pi_v<_Tp> = 0.318309886183790671537767526745028; 105template <floating_point _Tp> inline constexpr _Tp inv_sqrtpi_v<_Tp> = 0.564189583547756286948079451560772; 106template <floating_point _Tp> inline constexpr _Tp ln2_v<_Tp> = 0.693147180559945309417232121458176; 107template <floating_point _Tp> inline constexpr _Tp ln10_v<_Tp> = 2.302585092994045684017991454684364; 108template <floating_point _Tp> inline constexpr _Tp sqrt2_v<_Tp> = 1.414213562373095048801688724209698; 109template <floating_point _Tp> inline constexpr _Tp sqrt3_v<_Tp> = 1.732050807568877293527446341505872; 110template <floating_point _Tp> inline constexpr _Tp inv_sqrt3_v<_Tp> = 0.577350269189625764509148780501957; 111template <floating_point _Tp> inline constexpr _Tp egamma_v<_Tp> = 0.577215664901532860606512090082402; 112template <floating_point _Tp> inline constexpr _Tp phi_v<_Tp> = 1.618033988749894848204586834365638; 113 114inline constexpr double e = e_v<double>; 115inline constexpr double log2e = log2e_v<double>; 116inline constexpr double log10e = log10e_v<double>; 117inline constexpr double pi = pi_v<double>; 118inline constexpr double inv_pi = inv_pi_v<double>; 119inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>; 120inline constexpr double ln2 = ln2_v<double>; 121inline constexpr double ln10 = ln10_v<double>; 122inline constexpr double sqrt2 = sqrt2_v<double>; 123inline constexpr double sqrt3 = sqrt3_v<double>; 124inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>; 125inline constexpr double egamma = egamma_v<double>; 126inline constexpr double phi = phi_v<double>; 127 128} // namespace numbers 129 130_LIBCPP_END_NAMESPACE_STD 131 132#endif // _LIBCPP_STD_VER > 17 133 134#endif // _LIBCPP_NUMBERS 135