64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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/*
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* Copyright (c) 2000-2001
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef BOOL_H
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#define BOOL_H
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#ifndef GCC_SYSTEM_H
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#include "config.h"
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/* 1 if we have _Bool. */
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#ifndef HAVE__BOOL
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# define HAVE__BOOL \
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((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L))
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#endif
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/* Provide some sort of boolean type. We use stdbool.h if it's
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available. This must be after all inclusion of system headers,
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as some of them will mess us up. */
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#undef bool
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#undef true
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#undef false
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#undef TRUE
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#undef FALSE
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#ifdef HAVE_STDBOOL_H
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# include <stdbool.h>
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#else
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# if !HAVE__BOOL
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typedef char _Bool;
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# endif
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# define bool _Bool
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# define true 1
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# define false 0
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#endif
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#define TRUE true
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#define FALSE false
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#endif
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#endif
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