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/*!
* @file assert.h
* @brief Contains assert macro for meowpp's debugging tools.
*
* You can use
* @code{.cpp}
* #define MEOWPP_NODEBUG
* @endcode
* to remove all the debugging code.
*
* @author cathook
*/
#ifndef __MEOWPP_ASSERT_H__
#define __MEOWPP_ASSERT_H__
#include <cstdio>
#include <cstdlib>
namespace meow {
/*!
* @def Assert
* @brief A macro for assert whether a expression is failed or not.
* @param expr The expression to be tested.
* @param ... Error information to be printed to stderr when the expr is failed.
*
* When expression is failed, it will call `fprintf(stderr, ...)` to print out
* the message follows by calling `abort()` to halt the program.
*
* @note You can use
* @code{.cpp}
* #define MEOWPP_TESTING
* @endcode
* to tell this macro calls `test::abort()` instead of normal `abort()`
* function.
*/
#ifndef MEOWPP_NODEBUG
#define MEOWPP_STRINGIFY(x) #x
#define MEOWPP_TOSTRING(x) MEOWPP_STRINGIFY(x)
#ifndef MEOWPP_DEBUG_ASSERT_TESTING
#define Assert(expr,...) \
while (((expr) || \
(fprintf(stderr, "Assertion error at " \
__FILE__ ":" MEOWPP_TOSTRING(__LINE__) \
" >>>" __VA_ARGS__), \
abort(), false)) && false)
#else // MEOWPP_DEBUG_ASSERT_TESTING
#define Assert(expr,...) \
while (((expr) || \
(fprintf(stderr, "Assertion error at " \
__FILE__ ":" MEOWPP_TOSTRING(__LINE__) \
" >>> " __VA_ARGS__), \
test::abort(), false)) && false)
#endif // MEOWPP_DEBUG_ASSERT_TESTING
#else // MEOWPP_NODEBUG
#define Assert(expr,...) \
while (false)
#endif // MEOWPP_NODEBUG
} // meow
#endif // __MEOWPP_ASSERT_H__
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