ack/lang/cem/cemcom.ansi/assert.h
1989-02-07 11:04:05 +00:00

25 lines
863 B
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* $Header$ */
/* A S S E R T I O N M A C R O D E F I N I T I O N */
/* At some points in the program, it must be sure that some condition
holds true, due to further, successful, processing. As long as
there is no reasonable method to prove that a program is 100%
correct, these assertions are needed in some places.
*/
#include "debug.h" /* UF */
#ifdef DEBUG
/* Note: this macro uses parameter substitution inside strings */
#define ASSERT(exp) (exp || crash("in %s, %u: assertion %s failed", \
__FILE__, __LINE__, "exp"))
#define NOTREACHED() crash("in %s, %u: unreachable statement reached", \
__FILE__, __LINE__)
#else
#define ASSERT(exp)
#define NOTREACHED()
#endif DEBUG