--- ray/src/px/pextrem.c	2004/03/28 20:33:14	2.10
+++ ray/src/px/pextrem.c	2018/08/02 18:33:44	2.13
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: pextrem.c,v 2.10 2004/03/28 20:33:14 schorsch Exp $";
+static const char	RCSid[] = "$Id: pextrem.c,v 2.13 2018/08/02 18:33:44 greg Exp $";
 #endif
 /*
  * Find extrema points in a Radiance picture.
@@ -29,7 +29,7 @@ headline(			/* check header line */
 	void	*p
 )
 {
-	char	fmt[32];
+	char	fmt[MAXFMTLEN];
 	double	d;
 	COLOR	ctmp;
 
@@ -86,8 +86,8 @@ main(
 		fprintf(stderr, "%s: out of memory\n", argv[0]);
 		exit(1);
 	}
-	setcolr(cmin, 1e10, 1e10, 1e10);
-	setcolr(cmax, 0., 0., 0.);
+	setcolr(cmin, 1e30, 1e30, 1e30);
+	setcolr(cmax, 0., 0., 0.); xmax=ymax=0;
 					/* find extrema */
 	for (y = yres-1; y >= 0; y--) {
 		if (freadcolrs(scan, xres, stdin) < 0) {
@@ -112,11 +112,11 @@ main(
 		}
 	}
 	free((void *)scan);
-	printf("%d %d\t%e %e %e\n", xmin, ymin,
+	printf("%d %d\t%.2e %.2e %.2e\n", xmin, ymin,
 			colrval(cmin,RED)/colval(expos,RED),
 			colrval(cmin,GRN)/colval(expos,GRN),
 			colrval(cmin,BLU)/colval(expos,BLU));
-	printf("%d %d\t%e %e %e\n", xmax, ymax,
+	printf("%d %d\t%.2e %.2e %.2e\n", xmax, ymax,
 			colrval(cmax,RED)/colval(expos,RED),
 			colrval(cmax,GRN)/colval(expos,GRN),
 			colrval(cmax,BLU)/colval(expos,BLU));