clang/lib/Headers/stdbool.h

   1 /*===---- stdbool.h - Standard header for booleans -------------------------===
   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
  10 #ifndef __STDBOOL_H
  11 #define __STDBOOL_H
  12
  13 #define __bool_true_false_are_defined 1
  14
  15 #if defined(__STDC_VERSION__) && __STDC_VERSION__ > 201710L
  16 /* FIXME: We should be issuing a deprecation warning here, but cannot yet due
  17  * to system headers which include this header file unconditionally.
  18  */
  19 #elif !defined(__cplusplus)
  20 #define bool _Bool
  21 #define true 1
  22 #define false 0
  23 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
  24 /* Define _Bool as a GNU extension. */
  25 #define _Bool bool
  26 #if defined(__cplusplus) && __cplusplus < 201103L
  27 /* For C++98, define bool, false, true as a GNU extension. */
  28 #define bool bool
  29 #define false false
  30 #define true true
  31 #endif
  32 #endif
  33
  34 #endif /* __STDBOOL_H */