epicsAssert.h

Go to the documentation of this file.

/*************************************************************************\
* Copyright (c) 2009 UChicago Argonne LLC, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* SPDX-License-Identifier: EPICS
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/

#ifndef INC_epicsAssert_H
#define INC_epicsAssert_H

#include "libComAPI.h"
#include "compilerDependencies.h"

#ifdef __cplusplus
extern "C" {
#endif


#ifndef epicsAssertAuthor

# define epicsAssertAuthor 0
#endif

#undef assert

#ifdef NDEBUG
# define assert(ignore) ((void) 0)
#else /* NDEBUG */

LIBCOM_API void epicsAssert (const char *pFile, const unsigned line,
 const char *pExp, const char *pAuthorName);

# define assert(exp) ((exp) ? (void)0 : \
 epicsAssert(__FILE__, __LINE__, #exp, epicsAssertAuthor))

#endif /* NDEBUG */


/* Compile-time checks */
#if __cplusplus>=201103L
#define STATIC_ASSERT(expr) static_assert(expr, #expr)
#else

#define STATIC_JOIN(x, y, z, w) STATIC_JOIN4(x, y, z, w)
#define STATIC_JOIN4(x, y, z, w) x ## y ## z ## w

/* Compilers that do not support __COUNTER__ (e.g. GCC 4.1) will not be able to use unique static assert typedefs */
#ifdef __COUNTER__
# define STATIC_ASSERT_MSG(l) STATIC_JOIN(static_assert_, __COUNTER__, _failed_at_line_, l)
#else
# define STATIC_ASSERT_MSG(l) STATIC_JOIN(static_assert_, 0, _failed_at_line_, l)
#endif

#define STATIC_ASSERT(expr) \
 typedef int STATIC_ASSERT_MSG(__LINE__) \
 [ (expr) ? 1 : -1 ] EPICS_UNUSED
#endif

#ifdef __cplusplus
}
#endif

#endif /* INC_epicsAssert_H */