1 /*===---- stdbool.h - Standard header for booleans -------------------------=== 2 * 3 * Copyright (c) 2008 Eli Friedman 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a copy 6 * of this software and associated documentation files (the "Software"), to deal 7 * in the Software without restriction, including without limitation the rights 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 * copies of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 * THE SOFTWARE. 22 * 23 *===-----------------------------------------------------------------------=== 24 */ 25 26 #ifndef __STDBOOL_H 27 #define __STDBOOL_H 28 29 /* Don't define bool, true, and false in C++, except as a GNU extension. */ 30 #ifndef __cplusplus 31 #define bool _Bool 32 #define true 1 33 #define false 0 34 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__) 35 /* Define _Bool, bool, false, true as a GNU extension. */ 36 #define _Bool bool 37 #define bool bool 38 #define false false 39 #define true true 40 #endif 41 42 #define __bool_true_false_are_defined 1 43 44 #endif /* __STDBOOL_H */ 45