зеркало из https://github.com/microsoft/STL.git
107 строки
4.8 KiB
C++
107 строки
4.8 KiB
C++
// numbers standard header (core)
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// Copyright (c) Microsoft Corporation.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef _NUMBERS_
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#define _NUMBERS_
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#include <yvals_core.h>
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#if _STL_COMPILER_PREPROCESSOR
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#if !_HAS_CXX20
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_EMIT_STL_WARNING(STL4038, "The contents of <numbers> are available only with C++20 or later.");
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#else // ^^^ !_HAS_CXX20 / _HAS_CXX20 vvv
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#include <concepts>
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#pragma pack(push, _CRT_PACKING)
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#pragma warning(push, _STL_WARNING_LEVEL)
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#pragma warning(disable : _STL_DISABLED_WARNINGS)
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_STL_DISABLE_CLANG_WARNINGS
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#pragma push_macro("new")
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#undef new
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_STD_BEGIN
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namespace numbers {
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template <class _Ty>
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struct _Invalid {
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static_assert(_Always_false<_Ty>, "A program that instantiates a primary template of a mathematical constant "
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"variable template is ill-formed. (N4950 [math.constants]/3)");
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};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty e_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty log2e_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty log10e_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty pi_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty inv_pi_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty inv_sqrtpi_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty ln2_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty ln10_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty sqrt2_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty sqrt3_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty inv_sqrt3_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty egamma_v = _Invalid<_Ty>{};
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_EXPORT_STD template <class _Ty>
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constexpr _Ty phi_v = _Invalid<_Ty>{};
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template <floating_point _Floating>
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constexpr _Floating e_v<_Floating> = static_cast<_Floating>(2.718281828459045);
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template <floating_point _Floating>
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constexpr _Floating log2e_v<_Floating> = static_cast<_Floating>(1.4426950408889634);
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template <floating_point _Floating>
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constexpr _Floating log10e_v<_Floating> = static_cast<_Floating>(0.4342944819032518);
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template <floating_point _Floating>
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constexpr _Floating pi_v<_Floating> = static_cast<_Floating>(3.141592653589793);
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template <floating_point _Floating>
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constexpr _Floating inv_pi_v<_Floating> = static_cast<_Floating>(0.3183098861837907);
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template <floating_point _Floating>
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constexpr _Floating inv_sqrtpi_v<_Floating> = static_cast<_Floating>(0.5641895835477563);
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template <floating_point _Floating>
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constexpr _Floating ln2_v<_Floating> = static_cast<_Floating>(0.6931471805599453);
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template <floating_point _Floating>
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constexpr _Floating ln10_v<_Floating> = static_cast<_Floating>(2.302585092994046);
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template <floating_point _Floating>
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constexpr _Floating sqrt2_v<_Floating> = static_cast<_Floating>(1.4142135623730951);
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template <floating_point _Floating>
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constexpr _Floating sqrt3_v<_Floating> = static_cast<_Floating>(1.7320508075688772);
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template <floating_point _Floating>
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constexpr _Floating inv_sqrt3_v<_Floating> = static_cast<_Floating>(0.5773502691896257);
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template <floating_point _Floating>
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constexpr _Floating egamma_v<_Floating> = static_cast<_Floating>(0.5772156649015329);
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template <floating_point _Floating>
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constexpr _Floating phi_v<_Floating> = static_cast<_Floating>(1.618033988749895);
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_EXPORT_STD inline constexpr double e = e_v<double>;
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_EXPORT_STD inline constexpr double log2e = log2e_v<double>;
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_EXPORT_STD inline constexpr double log10e = log10e_v<double>;
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_EXPORT_STD inline constexpr double pi = pi_v<double>;
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_EXPORT_STD inline constexpr double inv_pi = inv_pi_v<double>;
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_EXPORT_STD inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
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_EXPORT_STD inline constexpr double ln2 = ln2_v<double>;
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_EXPORT_STD inline constexpr double ln10 = ln10_v<double>;
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_EXPORT_STD inline constexpr double sqrt2 = sqrt2_v<double>;
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_EXPORT_STD inline constexpr double sqrt3 = sqrt3_v<double>;
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_EXPORT_STD inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
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_EXPORT_STD inline constexpr double egamma = egamma_v<double>;
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_EXPORT_STD inline constexpr double phi = phi_v<double>;
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} // namespace numbers
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_STD_END
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#pragma pop_macro("new")
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_STL_RESTORE_CLANG_WARNINGS
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#pragma warning(pop)
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#pragma pack(pop)
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#endif // ^^^ _HAS_CXX20 ^^^
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#endif // _STL_COMPILER_PREPROCESSOR
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#endif // _NUMBERS_
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