| 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 */ |