/* Copyright (c) 2005,2007 Joerg Wunsch All rights reserved. Portions of documentation Copyright (c) 1991, 1993 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. $Id$ */ /** \file */ /** \defgroup avr_assert <assert.h>: Diagnostics \code #include <assert.h> \endcode This header file defines a debugging aid. As there is no standard error output stream available for many applications using this library, the generation of a printable error message is not enabled by default. These messages will only be generated if the application defines the macro \code __ASSERT_USE_STDERR \endcode before including the \c <assert.h> header file. By default, only abort() will be called to halt the application. */ /*@{*/ /* * The ability to include this file (with or without NDEBUG) is a * feature. */ #undef assert #include <stdlib.h> #if defined(__DOXYGEN__) /** * \def assert * \param expression Expression to test for. * * The assert() macro tests the given expression and if it is false, * the calling process is terminated. A diagnostic message is written * to stderr and the function abort() is called, effectively * terminating the program. * * If expression is true, the assert() macro does nothing. * * The assert() macro may be removed at compile time by defining * NDEBUG as a macro (e.g., by using the compiler option -DNDEBUG). */ # define assert(expression) #else /* !DOXYGEN */ # if defined(NDEBUG) # define assert(e) ((void)0) # else /* !NDEBUG */ # if defined(__ASSERT_USE_STDERR) # define assert(e) ((e) ? (void)0 : \ __assert(__func__, __FILE__, __LINE__, #e)) # else /* !__ASSERT_USE_STDERR */ # define assert(e) ((e) ? (void)0 : abort()) # endif /* __ASSERT_USE_STDERR */ # endif /* NDEBUG */ #endif /* DOXYGEN */ #ifdef __cplusplus extern "C" { #endif #if !defined(__DOXYGEN__) extern void __assert(const char *__func, const char *__file, int __lineno, const char *__sexp); #endif /* not __DOXYGEN__ */ #ifdef __cplusplus } #endif /*@}*/ /* EOF */