/* test the conflicts between options */#include <stdio.h>extern int FILENAMEONLY, APPROX, PAT_FILE, COUNT, INVERSE, BESTMATCH;extern FILEOUT;extern REGEX;extern DELIMITER;extern WHOLELINE;extern LINENUM;extern I, S, DD;extern JUMP;extern char Progname[32];compat(){int i, j, k;	if(BESTMATCH)  if(COUNT || FILENAMEONLY || APPROX || PAT_FILE) {		BESTMATCH = 0;		fprintf(stderr, "WARNING!!! -B option ignored when -c, -l, -f, or -# is on\n", Progname);	}	if(PAT_FILE)   {		if(APPROX)  {			fprintf(stderr, "WARNING!!!  approximate matching is not supported with -f option\n");		}/*		if(INVERSE) {			fprintf(stderr, "%s: -f and -v are not compatible\n", Progname);			exit(2);		}*/		if(LINENUM) {			fprintf(stderr, "%s: -f and -n are not compatible\n", Progname);			exit(2);		}		if(DELIMITER) {			fprintf(stderr, "%s: -f and -d are not compatible\n", Progname);			exit(2);		}	}	if(JUMP) {		if(REGEX) {			fprintf(stderr, "WARNING!!! -D#, -I#, or -S# option is ignored for regular expression pattern\n");			JUMP = 0;		}		if(I == 0 || S == 0 || DD == 0) {			fprintf(stderr, "%s: the error cost cannot be 0\n", Progname);			exit(2);		}	}	if(DELIMITER) {		if(WHOLELINE) {			fprintf(stderr, "%s: -d and -x is not compatible\n", Progname);			exit(2);		}	}}