blob: 3119e1f809eb94d1c91fc5f2a0900d6e08d03578 [file] [log] [blame]
/*
* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __CASSERT_H__
#define __CASSERT_H__
#include <cdefs.h>
/*******************************************************************************
* Macro to flag a compile time assertion. It uses the preprocessor to generate
* an invalid C construct if 'cond' evaluates to false.
* The following compilation error is triggered if the assertion fails:
* "error: size of array 'msg' is negative"
* The 'unused' attribute ensures that the unused typedef does not emit a
* compiler warning.
******************************************************************************/
#define CASSERT(cond, msg) \
typedef char msg[(cond) ? 1 : -1] __unused
#endif /* __CASSERT_H__ */