1 //===-- Common definitions for LLVM-libc public header files --------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_LIBC___COMMON_H
10 #define LLVM_LIBC___COMMON_H
11 
12 #ifdef __cplusplus
13 
14 #undef __BEGIN_C_DECLS
15 #define __BEGIN_C_DECLS extern "C" {
16 
17 #undef __END_C_DECLS
18 #define __END_C_DECLS }
19 
20 #undef _Noreturn
21 #define _Noreturn [[noreturn]]
22 
23 #undef _Alignas
24 #define _Alignas alignas
25 
26 #undef _Static_assert
27 #define _Static_assert static_assert
28 
29 #undef _Alignof
30 #define _Alignof alignof
31 
32 #undef _Thread_local
33 #define _Thread_local thread_local
34 
35 #else // not __cplusplus
36 
37 #undef __BEGIN_C_DECLS
38 #define __BEGIN_C_DECLS
39 
40 #undef __END_C_DECLS
41 #define __END_C_DECLS
42 
43 #undef __restrict
44 #define __restrict restrict // C99 and above support the restrict keyword.
45 
46 #endif // __cplusplus
47 
48 #endif // LLVM_LIBC___COMMON_H
49