cstddef
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// -*- C++ -*- forwarding header.
// Copyright (C) 1997-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file cstddef
* This is a Standard C++ Library file. You should @c \#include this file
* in your programs, rather than any of the @a *.h implementation files.
*
* This is the C++ version of the Standard C Library header @c stddef.h,
* and its contents are (mostly) the same as that header, but are all
* contained in the namespace @c std (except for names which are defined
* as macros in C).
*/
//
// ISO C++ 14882: 18.1 Types
//
#ifndef _GLIBCXX_CSTDDEF
#define _GLIBCXX_CSTDDEF 1
#pragma GCC system_header
#undef __need_wchar_t
#undef __need_ptrdiff_t
#undef __need_size_t
#undef __need_NULL
#undef __need_wint_t
#include <bits/c++config.h>
#include <stddef.h>
extern "C++"
{
#if __cplusplus >= 201103L
namespace std
{
// We handle size_t, ptrdiff_t, and nullptr_t in c++config.h.
using ::max_align_t;
}
#endif // C++11
#if __cplusplus >= 201703L
namespace std
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
#define __cpp_lib_byte 201603
/// std::byte
enum class byte : unsigned char {};
template<typename _IntegerType> struct __byte_operand { };
template<> struct __byte_operand<bool> { using __type = byte; };
template<> struct __byte_operand<char> { using __type = byte; };
template<> struct __byte_operand<signed char> { using __type = byte; };
template<> struct __byte_operand<unsigned char> { using __type = byte; };
#ifdef _GLIBCXX_USE_WCHAR_T
template<> struct __byte_operand<wchar_t> { using __type = byte; };
#endif
#ifdef _GLIBCXX_USE_CHAR8_T
template<> struct __byte_operand<char8_t> { using __type = byte; };
#endif
template<> struct __byte_operand<char16_t> { using __type = byte; };
template<> struct __byte_operand<char32_t> { using __type = byte; };
template<> struct __byte_operand<short> { using __type = byte; };
template<> struct __byte_operand<unsigned short> { using __type = byte; };
template<> struct __byte_operand<int> { using __type = byte; };
template<> struct __byte_operand<unsigned int> { using __type = byte; };
template<> struct __byte_operand<long> { using __type = byte; };
template<> struct __byte_operand<unsigned long> { using __type = byte; };
template<> struct __byte_operand<long long> { using __type = byte; };
template<> struct __byte_operand<unsigned long long> { using __type = byte; };
#if defined(__GLIBCXX_TYPE_INT_N_0)
template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_0>
{ using __type = byte; };
template<> struct __byte_operand<unsigned __GLIBCXX_TYPE_INT_N_0>
{ using __type = byte; };
#endif
#if defined(__GLIBCXX_TYPE_INT_N_1)
template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_1>
{ using __type = byte; };
template<> struct __byte_operand<unsigned __GLIBCXX_TYPE_INT_N_1>
{ using __type = byte; };
#endif
#if defined(__GLIBCXX_TYPE_INT_N_2)
template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_2>
{ using __type = byte; };
template<> struct __byte_operand<unsigned __GLIBCXX_TYPE_INT_N_2>
{ using __type = byte; };
#endif
template<typename _IntegerType>
struct __byte_operand<const _IntegerType>
: __byte_operand<_IntegerType> { };
template<typename _IntegerType>
struct __byte_operand<volatile _IntegerType>
: __byte_operand<_IntegerType> { };
template<typename _IntegerType>
struct __byte_operand<const volatile _IntegerType>
: __byte_operand<_IntegerType> { };
template<typename _IntegerType>
using __byte_op_t = typename __byte_operand<_IntegerType>::__type;
template<typename _IntegerType>
constexpr __byte_op_t<_IntegerType>
operator<<(byte __b, _IntegerType __shift) noexcept
{ return (byte)(unsigned char)((unsigned)__b << __shift); }
template<typename _IntegerType>
constexpr __byte_op_t<_IntegerType>
operator>>(byte __b, _IntegerType __shift) noexcept
{ return (byte)(unsigned char)((unsigned)__b >> __shift); }
constexpr byte
operator|(byte __l, byte __r) noexcept
{ return (byte)(unsigned char)((unsigned)__l | (unsigned)__r); }
constexpr byte
operator&(byte __l, byte __r) noexcept
{ return (byte)(unsigned char)((unsigned)__l & (unsigned)__r); }
constexpr byte
operator^(byte __l, byte __r) noexcept
{ return (byte)(unsigned char)((unsigned)__l ^ (unsigned)__r); }
constexpr byte
operator~(byte __b) noexcept
{ return (byte)(unsigned char)~(unsigned)__b; }
template<typename _IntegerType>
constexpr __byte_op_t<_IntegerType>&
operator<<=(byte& __b, _IntegerType __shift) noexcept
{ return __b = __b << __shift; }
template<typename _IntegerType>
constexpr __byte_op_t<_IntegerType>&
operator>>=(byte& __b, _IntegerType __shift) noexcept
{ return __b = __b >> __shift; }
constexpr byte&
operator|=(byte& __l, byte __r) noexcept
{ return __l = __l | __r; }
constexpr byte&
operator&=(byte& __l, byte __r) noexcept
{ return __l = __l & __r; }
constexpr byte&
operator^=(byte& __l, byte __r) noexcept
{ return __l = __l ^ __r; }
template<typename _IntegerType>
[[nodiscard]]
constexpr _IntegerType
to_integer(__byte_op_t<_IntegerType> __b) noexcept
{ return _IntegerType(__b); }
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif // C++17
} // extern "C++"
#endif // _GLIBCXX_CSTDDEF