--- ray/src/px/pf3.c	2003/02/25 00:26:05	2.15
+++ ray/src/px/pf3.c	2003/07/27 22:12:03	2.17
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: pf3.c,v 2.15 2003/02/25 00:26:05 greg Exp $";
+static const char RCSid[] = "$Id: pf3.c,v 2.17 2003/07/27 22:12:03 schorsch Exp $";
 #endif
 /*
  *  pf3.c - routines for gaussian and box filtering
@@ -9,6 +9,8 @@ static const char RCSid[] = "$Id: pf3.c,v 2.15 2003/02
 
 #include  "standard.h"
 
+#include  <string.h>
+
 #include  "color.h"
 
 #define  RSCA		1.13	/* square-radius multiplier: sqrt(4/PI) */
@@ -99,7 +101,7 @@ initmask()			/* initialize gaussian lookup table */
 	ringsum = (float *)malloc((orad+1)*sizeof(float));
 	ringwt = (short *)malloc((orad+1)*sizeof(short));
 	warr = (float *)malloc(obarsize*obarsize*sizeof(float));
-	if (ringsum == NULL | ringwt == 0 | warr == NULL)
+	if ((ringsum == NULL) | (ringwt == 0) | (warr == NULL))
 		goto memerr;
 	return;
 memerr:
@@ -190,8 +192,8 @@ int  ccent, rcent;
 	register int  c, x;
 	register float  *gscan;
 					/* compute ring sums */
-	bzero((char *)ringsum, (orad+1)*sizeof(float));
-	bzero((char *)ringwt, (orad+1)*sizeof(short));
+	memset((char *)ringsum, '\0', (orad+1)*sizeof(float));
+	memset((char *)ringwt, '\0', (orad+1)*sizeof(short));
 	for (r = -orad; r <= orad; r++) {
 		if (rcent+r < 0) continue;
 		if (rcent+r >= nrows) break;