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편집 파일: cstddef

// -*- C++ -*- forwarding header. // Copyright (C) 1997-2018 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> #if __cplusplus >= 201103L namespace std { // We handle size_t, ptrdiff_t, and nullptr_t in c++config.h. using ::max_align_t; } #endif #if __cplusplus >= 201703L namespace std { #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 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 __b = byte(static_cast<unsigned char>(__b) << __shift); } template<typename _IntegerType> constexpr __byte_op_t<_IntegerType> operator<<(byte __b, _IntegerType __shift) noexcept { return byte(static_cast<unsigned char>(__b) << __shift); } template<typename _IntegerType> constexpr __byte_op_t<_IntegerType>& operator>>=(byte& __b, _IntegerType __shift) noexcept { return __b = byte(static_cast<unsigned char>(__b) >> __shift); } template<typename _IntegerType> constexpr __byte_op_t<_IntegerType> operator>>(byte __b, _IntegerType __shift) noexcept { return byte(static_cast<unsigned char>(__b) >> __shift); } constexpr byte& operator|=(byte& __l, byte __r) noexcept { return __l = byte(static_cast<unsigned char>(__l) | static_cast<unsigned char>(__r)); } constexpr byte operator|(byte __l, byte __r) noexcept { return byte(static_cast<unsigned char>(__l) | static_cast<unsigned char>(__r)); } constexpr byte& operator&=(byte& __l, byte __r) noexcept { return __l = byte(static_cast<unsigned char>(__l) & static_cast<unsigned char>(__r)); } constexpr byte operator&(byte __l, byte __r) noexcept { return byte(static_cast<unsigned char>(__l) & static_cast<unsigned char>(__r)); } constexpr byte& operator^=(byte& __l, byte __r) noexcept { return __l = byte(static_cast<unsigned char>(__l) ^ static_cast<unsigned char>(__r)); } constexpr byte operator^(byte __l, byte __r) noexcept { return byte(static_cast<unsigned char>(__l) ^ static_cast<unsigned char>(__r)); } constexpr byte operator~(byte __b) noexcept { return byte(~static_cast<unsigned char>(__b)); } template<typename _IntegerType> constexpr _IntegerType to_integer(__byte_op_t<_IntegerType> __b) noexcept { return _IntegerType(__b); } } // namespace std #endif #endif // _GLIBCXX_CSTDDEF