mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
868af3f950
You can now use the hardest fastest and most dangerous language there is with Cosmopolitan. So far about 75% of LLVM libcxx has been added. A few breaking changes needed to be made to help this go smoothly. - Rename nothrow to dontthrow - Rename nodiscard to dontdiscard - Add some libm functions, e.g. lgamma, nan, etc. - Change intmax_t from int128 to int64 like everything else - Introduce %jjd formatting directive for int128_t - Introduce strtoi128(), strtou128(), etc. - Rename bsrmax() to bsr128() Some of the templates that should be working currently are std::vector, std::string, std::map, std::set, std::deque, etc.
113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
// -*- C++ -*-
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//===--------------------------- cstddef ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CSTDDEF
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#define _LIBCPP_CSTDDEF
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/*
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cstddef synopsis
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Macros:
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offsetof(type,member-designator)
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NULL
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namespace std
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{
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Types:
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ptrdiff_t
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size_t
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max_align_t
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nullptr_t
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byte // C++17
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} // std
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*/
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#include "third_party/libcxx/__config"
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#include "third_party/libcxx/version"
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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// Don't include our own <stddef.h>; we don't want to declare ::nullptr_t.
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// #include_next <stddef.h>
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#include "third_party/libcxx/__nullptr"
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_LIBCPP_BEGIN_NAMESPACE_STD
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using ::ptrdiff_t;
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using ::size_t;
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#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \
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defined(__DEFINED_max_align_t) || defined(__NetBSD__)
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// Re-use the compiler's <stddef.h> max_align_t where possible.
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using ::max_align_t;
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#else
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typedef long double max_align_t;
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#endif
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_LIBCPP_END_NAMESPACE_STD
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#if _LIBCPP_STD_VER > 14
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namespace std // purposefully not versioned
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{
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enum class byte : unsigned char {};
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constexpr byte operator| (byte __lhs, byte __rhs) noexcept
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{
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return static_cast<byte>(
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static_cast<unsigned char>(
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static_cast<unsigned int>(__lhs) | static_cast<unsigned int>(__rhs)
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));
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}
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constexpr byte& operator|=(byte& __lhs, byte __rhs) noexcept
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{ return __lhs = __lhs | __rhs; }
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constexpr byte operator& (byte __lhs, byte __rhs) noexcept
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{
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return static_cast<byte>(
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static_cast<unsigned char>(
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static_cast<unsigned int>(__lhs) & static_cast<unsigned int>(__rhs)
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));
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}
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constexpr byte& operator&=(byte& __lhs, byte __rhs) noexcept
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{ return __lhs = __lhs & __rhs; }
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constexpr byte operator^ (byte __lhs, byte __rhs) noexcept
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{
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return static_cast<byte>(
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static_cast<unsigned char>(
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static_cast<unsigned int>(__lhs) ^ static_cast<unsigned int>(__rhs)
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));
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}
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constexpr byte& operator^=(byte& __lhs, byte __rhs) noexcept
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{ return __lhs = __lhs ^ __rhs; }
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constexpr byte operator~ (byte __b) noexcept
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{
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return static_cast<byte>(
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static_cast<unsigned char>(
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~static_cast<unsigned int>(__b)
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));
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}
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}
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#include "third_party/libcxx/type_traits" // rest of byte
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#endif
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#endif // _LIBCPP_CSTDDEF
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