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llvm-project/libcxx/include/numbers

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[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
// -*- C++ -*-
[runtimes][NFC] Remove filenames at the top of the license notice We've stopped doing it in libc++ for a while now because these names would end up rotting as we move things around and copy/paste stuff. This cleans up all the existing files so as to stop the spreading as people copy-paste headers around.
2021-11-18 05:25:01 +08:00
//===----------------------------------------------------------------------===//
[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_NUMBERS
#define _LIBCPP_NUMBERS
/*
numbers synopsis
namespace std::numbers {
template<class T> inline constexpr T e_v = unspecified;
template<class T> inline constexpr T log2e_v = unspecified;
template<class T> inline constexpr T log10e_v = unspecified;
template<class T> inline constexpr T pi_v = unspecified;
template<class T> inline constexpr T inv_pi_v = unspecified;
template<class T> inline constexpr T inv_sqrtpi_v = unspecified;
template<class T> inline constexpr T ln2_v = unspecified;
template<class T> inline constexpr T ln10_v = unspecified;
template<class T> inline constexpr T sqrt2_v = unspecified;
template<class T> inline constexpr T sqrt3_v = unspecified;
template<class T> inline constexpr T inv_sqrt3_v = unspecified;
template<class T> inline constexpr T egamma_v = unspecified;
template<class T> inline constexpr T phi_v = unspecified;
template<floating_point T> inline constexpr T e_v<T> = see below;
template<floating_point T> inline constexpr T log2e_v<T> = see below;
template<floating_point T> inline constexpr T log10e_v<T> = see below;
template<floating_point T> inline constexpr T pi_v<T> = see below;
template<floating_point T> inline constexpr T inv_pi_v<T> = see below;
template<floating_point T> inline constexpr T inv_sqrtpi_v<T> = see below;
template<floating_point T> inline constexpr T ln2_v<T> = see below;
template<floating_point T> inline constexpr T ln10_v<T> = see below;
template<floating_point T> inline constexpr T sqrt2_v<T> = see below;
template<floating_point T> inline constexpr T sqrt3_v<T> = see below;
template<floating_point T> inline constexpr T inv_sqrt3_v<T> = see below;
template<floating_point T> inline constexpr T egamma_v<T> = see below;
template<floating_point T> inline constexpr T phi_v<T> = see below;
inline constexpr double e = e_v<double>;
inline constexpr double log2e = log2e_v<double>;
inline constexpr double log10e = log10e_v<double>;
inline constexpr double pi = pi_v<double>;
inline constexpr double inv_pi = inv_pi_v<double>;
inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
inline constexpr double ln2 = ln2_v<double>;
inline constexpr double ln10 = ln10_v<double>;
inline constexpr double sqrt2 = sqrt2_v<double>;
inline constexpr double sqrt3 = sqrt3_v<double>;
inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
inline constexpr double egamma = egamma_v<double>;
inline constexpr double phi = phi_v<double>;
}
*/
#include <__config>
[libcxx] cleans up __cpp_concepts mess libc++ was previously a bit confused by what the value of __cpp_concepts should be. Also replaces `__floating_point` with `floating_point` now that it exists. Differential Revision: https://reviews.llvm.org/D97015
2021-02-19 09:54:52 +08:00
#include <concepts>
[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
#include <type_traits>
#include <version>
[libc++] Alphabetize and include-what-you-use. NFCI. Differential Revision: https://reviews.llvm.org/D102781
2021-05-19 23:57:04 +08:00
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS)
[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace numbers {
template <class T>
inline constexpr bool __false = false;
template <class T>
struct __illformed
{
static_assert(__false<T>, "A program that instantiates a primary template of a mathematical constant variable template is ill-formed.");
};
template <class T> inline constexpr T e_v = __illformed<T>{};
template <class T> inline constexpr T log2e_v = __illformed<T>{};
template <class T> inline constexpr T log10e_v = __illformed<T>{};
template <class T> inline constexpr T pi_v = __illformed<T>{};
template <class T> inline constexpr T inv_pi_v = __illformed<T>{};
template <class T> inline constexpr T inv_sqrtpi_v = __illformed<T>{};
template <class T> inline constexpr T ln2_v = __illformed<T>{};
template <class T> inline constexpr T ln10_v = __illformed<T>{};
template <class T> inline constexpr T sqrt2_v = __illformed<T>{};
template <class T> inline constexpr T sqrt3_v = __illformed<T>{};
template <class T> inline constexpr T inv_sqrt3_v = __illformed<T>{};
template <class T> inline constexpr T egamma_v = __illformed<T>{};
template <class T> inline constexpr T phi_v = __illformed<T>{};
[libcxx] cleans up __cpp_concepts mess libc++ was previously a bit confused by what the value of __cpp_concepts should be. Also replaces `__floating_point` with `floating_point` now that it exists. Differential Revision: https://reviews.llvm.org/D97015
2021-02-19 09:54:52 +08:00
template <floating_point T> inline constexpr T e_v<T> = 2.718281828459045235360287471352662;
template <floating_point T> inline constexpr T log2e_v<T> = 1.442695040888963407359924681001892;
template <floating_point T> inline constexpr T log10e_v<T> = 0.434294481903251827651128918916605;
template <floating_point T> inline constexpr T pi_v<T> = 3.141592653589793238462643383279502;
template <floating_point T> inline constexpr T inv_pi_v<T> = 0.318309886183790671537767526745028;
template <floating_point T> inline constexpr T inv_sqrtpi_v<T> = 0.564189583547756286948079451560772;
template <floating_point T> inline constexpr T ln2_v<T> = 0.693147180559945309417232121458176;
template <floating_point T> inline constexpr T ln10_v<T> = 2.302585092994045684017991454684364;
template <floating_point T> inline constexpr T sqrt2_v<T> = 1.414213562373095048801688724209698;
template <floating_point T> inline constexpr T sqrt3_v<T> = 1.732050807568877293527446341505872;
template <floating_point T> inline constexpr T inv_sqrt3_v<T> = 0.577350269189625764509148780501957;
template <floating_point T> inline constexpr T egamma_v<T> = 0.577215664901532860606512090082402;
template <floating_point T> inline constexpr T phi_v<T> = 1.618033988749894848204586834365638;
[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
inline constexpr double e = e_v<double>;
inline constexpr double log2e = log2e_v<double>;
inline constexpr double log10e = log10e_v<double>;
inline constexpr double pi = pi_v<double>;
inline constexpr double inv_pi = inv_pi_v<double>;
inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
inline constexpr double ln2 = ln2_v<double>;
inline constexpr double ln10 = ln10_v<double>;
inline constexpr double sqrt2 = sqrt2_v<double>;
inline constexpr double sqrt3 = sqrt3_v<double>;
inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
inline constexpr double egamma = egamma_v<double>;
inline constexpr double phi = phi_v<double>;
} // namespace numbers
_LIBCPP_END_NAMESPACE_STD
[libcxx] cleans up __cpp_concepts mess libc++ was previously a bit confused by what the value of __cpp_concepts should be. Also replaces `__floating_point` with `floating_point` now that it exists. Differential Revision: https://reviews.llvm.org/D97015
2021-02-19 09:54:52 +08:00
#endif //_LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS)
[libc++] Implement <numbers> Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers. Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius Reviewed By: ldionne, #libc, curdeius Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 15:13:33 +08:00
#endif // _LIBCPP_NUMBERS