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/*------------------------------------------------------------------------
* Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
*
* This file is part of the ZBar Bar Code Reader.
*
* The ZBar Bar Code Reader is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* The ZBar Bar Code Reader is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with the ZBar Bar Code Reader; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* http://sourceforge.net/projects/zbar
*------------------------------------------------------------------------*/
/* varargs variations on compile time debug spew */
#include <stdio.h>
#ifndef DEBUG_LEVEL
#ifdef __GNUC__
/* older versions of gcc (< 2.95) require a named varargs parameter */
#define dbprintf(args...) while (0)
#else
/* unfortunately named vararg parameter is a gcc-specific extension */
#define dbprintf(...) while (0)
#endif
#else
#ifdef __GNUC__
#define dbprintf(level, args...) \
do { \
if ((level) <= DEBUG_LEVEL) \
fprintf(stderr, args); \
} while (0)
#else
#define dbprintf(level, ...) \
do { \
if ((level) <= DEBUG_LEVEL) \
fprintf(stderr, __VA_ARGS__); \
} while (0)
#endif
#endif /* DEBUG_LEVEL */
/* spew warnings for non-fatal assertions.
* returns specified error code if assertion fails.
* NB check/return is still performed for NDEBUG
* only the message is inhibited
* FIXME don't we need varargs hacks here?
*/
#ifndef NDEBUG
#include <stdio.h>
#if __STDC_VERSION__ < 199901L && !defined(__func__)
#if __GNUC__ >= 2
#define __func__ __FUNCTION__
#else
#define __func__ "<unknown>"
#endif
#endif
#define zassert(condition, retval, format, ...) \
do { \
if (!(condition)) { \
fprintf(stderr, \
"WARNING: %s:%d: %s:" \
" Assertion \"%s\" failed.\n\t" format, \
__FILE__, __LINE__, __func__, #condition, ##__VA_ARGS__); \
return (retval); \
} \
} while (0)
#else
#define zassert(condition, retval, format, ...) \
do { \
if (!(condition)) \
return (retval); \
} while (0)
#endif
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