libc/include/__llvm-libc-common.h

   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 #undef __NOEXCEPT
  36 #define __NOEXCEPT noexcept
  37
  38 #else // not __cplusplus
  39
  40 #undef __BEGIN_C_DECLS
  41 #define __BEGIN_C_DECLS
  42
  43 #undef __END_C_DECLS
  44 #define __END_C_DECLS
  45
  46 #undef __restrict
  47 #define __restrict restrict // C99 and above support the restrict keyword.
  48
  49 #undef __NOEXCEPT
  50 #define __NOEXCEPT
  51
  52 #endif // __cplusplus
  53
  54 #endif // LLVM_LIBC___COMMON_H