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gwassert.h

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00001 /* ==================================================================== 
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00004  * Copyright (c) 2001-2008 Kannel Group  
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00053  * Portions of this software are based upon software originally written at  
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00055  */ 
00056 
00057 /*
00058  * gwassert.h - assertions macros that report via log files
00059  *
00060  * Define our own version of assert that calls panic(), because the
00061  * normal assert() prints to stdout which no-one will see.
00062  *
00063  * We also define a gw_assert_place macro so that we can easily use it
00064  * data structure consistency checking function and report the place where
00065  * the consistency checking function was called.
00066  *
00067  * Richard Braakman
00068  * Lars Wirzenius
00069  */
00070 
00071 #include "log.h"  /* for panic() */
00072 
00073 /* The normal assert() does nothing if NDEBUG is defined.  We honor both
00074  * NDEBUG and our own NO_GWASSERT.  If NDEBUG is defined, we always turn
00075  * on NO_GWASSERT, so that user code does not have to check for them
00076  * separately. */
00077 
00078 #if defined(NDEBUG) && !defined(NO_GWASSERT)
00079 #define NO_GWASSERT
00080 #endif
00081 
00082 #ifdef NO_GWASSERT
00083 #define gw_assert(expr) ((void) 0)
00084 #define gw_assert_place(expr, file, lineno, func) ((void) 0)
00085 #else
00086 #define gw_assert(expr) \
00087     ((void) ((expr) ? 0 : \
00088           (panic(0, "%s:%ld: %s: Assertion `%s' failed.", \
00089             __FILE__, (long) __LINE__, __func__, #expr), 0)))
00090 #define gw_assert_place(expr, file, lineno, func) \
00091     ((void) ((expr) ? 0 : \
00092           (panic(0, "%s:%ld: %s: Assertion `%s' failed. " \
00093                    "(Called from %s:%ld:%s.)", \
00094                   __FILE__, (long) __LINE__, __func__, \
00095                   #expr, (file), (long) (lineno), (func)), 0)))
00096 #endif
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