1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _STDBOOL_H 28 #define _STDBOOL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * This header is included for alignment with the ISO/IEC 9899:1999 standard. 34 * The contents are only visible when using a c99 compiler. In the case of 35 * the Sun compiler, some C99 features, including the _Bool built-in type, 36 * are provided in the default compilation mode. This is a subset of what 37 * is provided when __STDC_VERSION__ is 199901; hence the contents of this 38 * header are made visible when either __STDC_VERSION__ >= 199901 (_STDC_C99 39 * as defined in sys/feature_tests.h) or if __C99FEATURES__ (a Sun compiler 40 * built-in) is defined. Likewise for GNU C, support for C99 features, 41 * including this header, is provided in versions 3.0 or greater. In no 42 * case should the contents of this header be visible in a C++ build 43 * environment. 44 * 45 * Note that the ability to undefine and redefine the macros bool, 46 * true, and false is an obsolescent feature which may be withdrawn 47 * in a future version of the standards specifications. 48 */ 49 50 #include <sys/feature_tests.h> 51 52 #ifndef __cplusplus 53 #if defined(_STDC_C99) || defined(__C99FEATURES__) || __GNUC__ >= 3 54 55 #undef bool 56 #undef true 57 #undef false 58 59 #define bool _Bool 60 #define true 1 61 #define false 0 62 63 #define __bool_true_false_are_defined 1 64 65 #endif /* defined(_STDC_C99) || defined(__C99FEATURES__) || __GNUC__ >= 3 */ 66 #endif /* __cplusplus */ 67 68 #endif /* _STDBOOL_H */ 69