assert.h
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- /* ----------------------------------------------------------------------------
- * ATMEL Microcontroller Software Support
- * ----------------------------------------------------------------------------
- * Copyright (c) 2008, Atmel Corporation
- *
- * 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 disclaimer below.
- *
- * Atmel's name may not be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
- * DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
- * ----------------------------------------------------------------------------
- */
- //------------------------------------------------------------------------------
- /// unit
- ///
- /// !Purpose
- ///
- /// Definition of the ASSERT() and SANITY_CHECK() macros, which are used for
- /// runtime condition & parameter verifying.
- ///
- /// !Usage
- ///
- /// -# Use ASSERT() in your code to check the value of function parameters,
- /// return values, etc. *Warning:* the ASSERT() condition must not have
- /// any side-effect; otherwise, the program may not work properly
- /// anymore when assertions are disabled.
- /// -# Use SANITY_CHECK() to perform checks with a default error message
- /// (outputs the file and line number where the error occured). This
- /// reduces memory overhead caused by assertion error strings.
- /// -# Initialize the dbgu to see failed assertions at run-time.
- /// -# Assertions can be entirely disabled by defining the NOASSERT symbol
- /// at compilation time.
- //------------------------------------------------------------------------------
- #ifndef ASSERT_H
- #define ASSERT_H
- //------------------------------------------------------------------------------
- // Headers
- //------------------------------------------------------------------------------
- #include <stdio.h>
- #include "trace.h"
- //------------------------------------------------------------------------------
- // Definitions
- //------------------------------------------------------------------------------
- #if defined(NOASSERT)
- #define ASSERT(...)
- #define SANITY_CHECK(...)
- #else
- #if (TRACE_LEVEL == 0)
- /// Checks that the given condition is true,
- /// otherwise stops the program execution.
- /// param condition Condition to verify.
- #define ASSERT(condition, ...) {
- if (!(condition)) {
- while (1);
- }
- }
- /// Performs the same duty as the ASSERT() macro
- /// param condition Condition to verify.
- #define SANITY_CHECK(condition) ASSERT(condition, ...)
- #else
- /// Checks that the given condition is true, otherwise displays an error
- /// message and stops the program execution.
- /// param condition Condition to verify.
- #define ASSERT(condition, ...) {
- if (!(condition)) {
- printf("-F- ASSERT: ");
- printf(__VA_ARGS__);
- while (1);
- }
- }
- #define SANITY_ERROR "Sanity check failed at %s:%dnr"
-
- /// Performs the same duty as the ASSERT() macro, except a default error
- /// message is output if the condition is false.
- /// param condition Condition to verify.
- #define SANITY_CHECK(condition) ASSERT(condition, SANITY_ERROR, __FILE__, __LINE__)
- #endif
- #endif
- #endif //#ifndef ASSERT_H