llvm/include/llvm-c/Deprecated.h

   1 /*===-- llvm-c/Deprecated.h - Deprecation macro -------------------*- 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 header declares LLVM_ATTRIBUTE_C_DEPRECATED() macro, which can be     *|
  11 |* used to deprecate functions in the C interface.                            *|
  12 |*                                                                            *|
  13 \*===----------------------------------------------------------------------===*/
  14
  15 #ifndef LLVM_C_DEPRECATED_H
  16 #define LLVM_C_DEPRECATED_H
  17
  18 #ifndef __has_feature
  19 # define __has_feature(x) 0
  20 #endif
  21
  22 // This is a variant of LLVM_ATTRIBUTE_DEPRECATED() that is compatible with
  23 // C compilers.
  24 #if __has_feature(attribute_deprecated_with_message)
  25 # define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
  26   decl __attribute__((deprecated(message)))
  27 #elif defined(__GNUC__)
  28 # define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
  29   decl __attribute__((deprecated))
  30 #elif defined(_MSC_VER)
  31 # define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
  32   __declspec(deprecated(message)) decl
  33 #else
  34 # define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
  35   decl
  36 #endif
  37
  38 #endif /* LLVM_C_DEPRECATED_H */