1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #if defined(__need_ptrdiff_t) || defined(__need_size_t) || \
11     defined(__need_wchar_t) || defined(__need_NULL) || defined(__need_wint_t)
12 
13 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
14 #  pragma GCC system_header
15 #endif
16 
17 #include_next <stddef.h>
18 
19 #elif !defined(_LIBCPP_STDDEF_H)
20 #define _LIBCPP_STDDEF_H
21 
22 /*
23     stddef.h synopsis
24 
25 Macros:
26 
27     offsetof(type,member-designator)
28     NULL
29 
30 Types:
31 
32     ptrdiff_t
33     size_t
34     max_align_t // C++11
35     nullptr_t
36 
37 */
38 
39 #include <__config>
40 
41 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
42 #  pragma GCC system_header
43 #endif
44 
45 #include_next <stddef.h>
46 
47 #ifdef __cplusplus
48     typedef decltype(nullptr) nullptr_t;
49 #endif
50 
51 #endif // _LIBCPP_STDDEF_H
52