clang/include/clang-c/ExternC.h

   1 /*===- clang-c/ExternC.h - Wrapper for 'extern "C"' ---------------*- C -*-===*\
   2 |*                                                                            *|
   3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
   4 |* 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 |* This file defines an 'extern "C"' wrapper.                                 *|
  11 |*                                                                            *|
  12 \*===----------------------------------------------------------------------===*/
  13
  14 #ifndef LLVM_CLANG_C_EXTERN_C_H
  15 #define LLVM_CLANG_C_EXTERN_C_H
  16
  17 #ifdef __clang__
  18 #define LLVM_CLANG_C_STRICT_PROTOTYPES_BEGIN                                   \
  19   _Pragma("clang diagnostic push")                                             \
  20       _Pragma("clang diagnostic error \"-Wstrict-prototypes\"")
  21 #define LLVM_CLANG_C_STRICT_PROTOTYPES_END _Pragma("clang diagnostic pop")
  22 #else
  23 #define LLVM_CLANG_C_STRICT_PROTOTYPES_BEGIN
  24 #define LLVM_CLANG_C_STRICT_PROTOTYPES_END
  25 #endif
  26
  27 #ifdef __cplusplus
  28 #define LLVM_CLANG_C_EXTERN_C_BEGIN                                            \
  29   extern "C" {                                                                 \
  30   LLVM_CLANG_C_STRICT_PROTOTYPES_BEGIN
  31 #define LLVM_CLANG_C_EXTERN_C_END                                              \
  32   LLVM_CLANG_C_STRICT_PROTOTYPES_END                                           \
  33   }
  34 #else
  35 #define LLVM_CLANG_C_EXTERN_C_BEGIN LLVM_CLANG_C_STRICT_PROTOTYPES_BEGIN
  36 #define LLVM_CLANG_C_EXTERN_C_END LLVM_CLANG_C_STRICT_PROTOTYPES_END
  37 #endif
  38
  39 #endif