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(__MVS__) && __has_include_next(<stdbool.h>)
  16 #include_next <stdbool.h>
  17 #else
  18
  19 #if defined(__STDC_VERSION__) && __STDC_VERSION__ > 201710L
  20 /* FIXME: We should be issuing a deprecation warning here, but cannot yet due
  21  * to system headers which include this header file unconditionally.
  22  */
  23 #elif !defined(__cplusplus)
  24 #define bool _Bool
  25 #define true 1
  26 #define false 0
  27 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
  28 /* Define _Bool as a GNU extension. */
  29 #define _Bool bool
  30 #if defined(__cplusplus) && __cplusplus < 201103L
  31 /* For C++98, define bool, false, true as a GNU extension. */
  32 #define bool bool
  33 #define false false
  34 #define true true
  35 #endif
  36 #endif
  37
  38 #endif /* __MVS__ */
  39 #endif /* __STDBOOL_H */