macros.h

matlab+dct+数字水印

// Onur G. Guleryuz 1995, 1996, 1997,
// University of Illinois at Urbana-Champaign,
// Princeton University,
// Polytechnic University.

#if !defined(_MACROS_)
#define _MACROS_

// For printf().
#include <stdio.h>
// For exit().
#include <stdlib.h>

#define check_ptr(ptr,fn) \
	if((ptr)==NULL) { \
		printf("%10s: NULL pointer\n",(char *)(fn)); \
		perror((char *)(fn)); \
		exit(1); \
	}

#endif