1// -*- C++ -*- 2//===--------------------------- cstddef ----------------------------------===// 3// 4// The LLVM Compiler Infrastructure 5// 6// This file is dual licensed under the MIT and the University of Illinois Open 7// Source Licenses. See LICENSE.TXT for details. 8// 9//===----------------------------------------------------------------------===// 10 11#ifndef _LIBCPP_CSTDDEF 12#define _LIBCPP_CSTDDEF 13 14/* 15 cstddef synopsis 16 17Macros: 18 19 offsetof(type,member-designator) 20 NULL 21 22namespace std 23{ 24 25Types: 26 27 ptrdiff_t 28 size_t 29 max_align_t 30 nullptr_t 31 32} // std 33 34*/ 35 36#include <__config> 37 38#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 39#pragma GCC system_header 40#endif 41 42// Don't include our own <stddef.h>; we don't want to declare ::nullptr_t. 43#include_next <stddef.h> 44#include <__nullptr> 45 46_LIBCPP_BEGIN_NAMESPACE_STD 47 48using ::ptrdiff_t; 49using ::size_t; 50 51#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \ 52 defined(__DEFINED_max_align_t) 53// Re-use the compiler's <stddef.h> max_align_t where possible. 54using ::max_align_t; 55#else 56typedef long double max_align_t; 57#endif 58 59_LIBCPP_END_NAMESPACE_STD 60 61#endif // _LIBCPP_CSTDDEF 62