STL/stl/inc/stdfloat

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// stdfloat standard header (core)
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#pragma once
#ifndef _STDFLOAT_
#define _STDFLOAT_
#include <yvals_core.h>
#if _STL_COMPILER_PREPROCESSOR
#if !_HAS_CXX23
_EMIT_STL_WARNING(STL4038, "The contents of <stdfloat> are available only with C++23 or later.");
#else // ^^^ !_HAS_CXX23 / _HAS_CXX23 vvv
#pragma pack(push, _CRT_PACKING)
#pragma warning(push, _STL_WARNING_LEVEL)
#pragma warning(disable : _STL_DISABLED_WARNINGS)
_STL_DISABLE_CLANG_WARNINGS
#pragma push_macro("new")
#undef new
// We don't support any optional extended floating-point types, but we do need to provide an empty `namespace std`.
// We don't need to `export` it for modules, as the other headers will implicitly do so (N4928 [module.interface]/2.1).
_STD_BEGIN
_STD_END
#pragma pop_macro("new")
_STL_RESTORE_CLANG_WARNINGS
#pragma warning(pop)
#pragma pack(pop)
#endif // ^^^ _HAS_CXX23 ^^^
#endif // _STL_COMPILER_PREPROCESSOR
#endif // _STDFLOAT_