| // -*- C++ -*- |
| //===--------------------------- cstddef ----------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_CSTDDEF |
| #define _LIBCPP_CSTDDEF |
| |
| /* |
| cstddef synopsis |
| |
| Macros: |
| |
| offsetof(type,member-designator) |
| NULL |
| |
| namespace std |
| { |
| |
| Types: |
| |
| ptrdiff_t |
| size_t |
| max_align_t |
| nullptr_t |
| byte // C++17 |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| // Don't include our own <stddef.h>; we don't want to declare ::nullptr_t. |
| #include_next <stddef.h> |
| #include <__nullptr> |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| using ::ptrdiff_t; |
| using ::size_t; |
| |
| #if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \ |
| defined(__DEFINED_max_align_t) |
| // Re-use the compiler's <stddef.h> max_align_t where possible. |
| using ::max_align_t; |
| #else |
| typedef long double max_align_t; |
| #endif |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER > 14 |
| namespace std // purposefully not versioned |
| { |
| enum class byte : unsigned char {}; |
| |
| constexpr byte operator| (byte __lhs, byte __rhs) noexcept |
| { |
| return static_cast<byte>( |
| static_cast<unsigned char>( |
| static_cast<unsigned int>(__lhs) | static_cast<unsigned int>(__rhs) |
| )); |
| } |
| |
| constexpr byte& operator|=(byte& __lhs, byte __rhs) noexcept |
| { return __lhs = __lhs | __rhs; } |
| |
| constexpr byte operator& (byte __lhs, byte __rhs) noexcept |
| { |
| return static_cast<byte>( |
| static_cast<unsigned char>( |
| static_cast<unsigned int>(__lhs) & static_cast<unsigned int>(__rhs) |
| )); |
| } |
| |
| constexpr byte& operator&=(byte& __lhs, byte __rhs) noexcept |
| { return __lhs = __lhs & __rhs; } |
| |
| constexpr byte operator^ (byte __lhs, byte __rhs) noexcept |
| { |
| return static_cast<byte>( |
| static_cast<unsigned char>( |
| static_cast<unsigned int>(__lhs) ^ static_cast<unsigned int>(__rhs) |
| )); |
| } |
| |
| constexpr byte& operator^=(byte& __lhs, byte __rhs) noexcept |
| { return __lhs = __lhs ^ __rhs; } |
| |
| constexpr byte operator~ (byte __b) noexcept |
| { |
| return static_cast<byte>( |
| static_cast<unsigned char>( |
| ~static_cast<unsigned int>(__b) |
| )); |
| } |
| |
| } |
| |
| #include <type_traits> // rest of byte |
| #endif |
| |
| #endif // _LIBCPP_CSTDDEF |
