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jeremybenn |
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* 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 are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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//------------------------------------------------------------------------------
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/// \unit
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///
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/// !Purpose
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///
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/// Definition of the ASSERT() and SANITY_CHECK() macros, which are used for
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/// runtime condition & parameter verifying.
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///
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/// !Usage
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///
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/// -# Use ASSERT() in your code to check the value of function parameters,
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/// return values, etc. *Warning:* the ASSERT() condition must not have
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/// any side-effect; otherwise, the program may not work properly
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/// anymore when assertions are disabled.
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/// -# Use SANITY_CHECK() to perform checks with a default error message
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/// (outputs the file and line number where the error occured). This
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/// reduces memory overhead caused by assertion error strings.
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/// -# Initialize the dbgu to see failed assertions at run-time.
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/// -# Assertions can be entirely disabled by defining the NOASSERT symbol
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/// at compilation time.
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//------------------------------------------------------------------------------
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#ifndef ASSERT_H
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#define ASSERT_H
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//------------------------------------------------------------------------------
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// Headers
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//------------------------------------------------------------------------------
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#include <stdio.h>
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#include "trace.h"
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//------------------------------------------------------------------------------
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// Definitions
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//------------------------------------------------------------------------------
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#if defined(NOASSERT)
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#define ASSERT(...)
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#define SANITY_CHECK(...)
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#else
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#if (TRACE_LEVEL == 0)
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/// Checks that the given condition is true,
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/// otherwise stops the program execution.
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/// \param condition Condition to verify.
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#define ASSERT(condition, ...) { \
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if (!(condition)) { \
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while (1); \
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} \
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}
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/// Performs the same duty as the ASSERT() macro
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/// \param condition Condition to verify.
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#define SANITY_CHECK(condition) ASSERT(condition, ...)
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#else
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/// Checks that the given condition is true, otherwise displays an error
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/// message and stops the program execution.
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/// \param condition Condition to verify.
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#define ASSERT(condition, ...) { \
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if (!(condition)) { \
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printf("-F- ASSERT: "); \
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printf(__VA_ARGS__); \
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while (1); \
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} \
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}
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#define SANITY_ERROR "Sanity check failed at %s:%d\n\r"
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/// Performs the same duty as the ASSERT() macro, except a default error
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/// message is output if the condition is false.
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/// \param condition Condition to verify.
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#define SANITY_CHECK(condition) ASSERT(condition, SANITY_ERROR, __FILE__, __LINE__)
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#endif
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#endif
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#endif //#ifndef ASSERT_H
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