/* existtest.c - say if corresponding file exists */

#include <stdio.h>
#include <algol68.h>
#include <qioret.h>

FILE *	iop;
char	string[100];
char	c;

main(argc,argv)
int	argc;
char **	argv;
BEGIN
	IF	(argc!=3)
	THEN	fprintf(stderr,"usage: %s unambiguous-file-name prefix\n",argv[0]);
		fprintf(stderr,"will yield +mumble if corresponding file exists @ prefix\n");
		fprintf(stderr,"yield -mumble if it does not\n");
		error("\7");
	FI
	strcpy(string,argv[2]);
	strcat(string,argv[1]);
	IF	( ! (iop=fopen(string,"r")) )
	THEN	IF	(($$ferr&0xFF) == IE_NSF)
		THEN	c = '-';
		ELSE	c = '+';
			fprintf(stderr,"\7warning: \"%s\" returned %4o  - assumed to exist\n",string,$$ferr&0xFF);
		FI
	ELSE	c = '+';
	FI
	printf("%c %s\n",c,string);
END


/* end: existtest.c */