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 /* Don't define bool, true, and false in C++, except as a GNU extension. */ 14 #ifndef __cplusplus 15 #define bool _Bool 16 #define true 1 17 #define false 0 18 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__) 19 /* Define _Bool as a GNU extension. */ 20 #define _Bool bool 21 #if __cplusplus < 201103L 22 /* For C++98, define bool, false, true as a GNU extension. */ 23 #define bool bool 24 #define false false 25 #define true true 26 #endif 27 #endif 28 29 #define __bool_true_false_are_defined 1 30 31 #endif /* __STDBOOL_H */ 32