--- ray/src/util/setscan.c	1991/03/12 13:07:40	1.1
+++ ray/src/util/setscan.c	2004/03/26 23:34:23	2.4
@@ -1,17 +1,20 @@
-/* Copyright (c) 1991 Regents of the University of California */
+#ifndef lint
+static const char	RCSid[] = "$Id: setscan.c,v 2.4 2004/03/26 23:34:23 schorsch Exp $";
+#endif
+/*
+ * Convert angle ranges of the form a-b:s,c to discrete values
+ */
 
-/* SCCSid "$SunId$ LBL" */
-
-/* Copyright (c) 1991 Regents of the University of California */
-
+#include <stdlib.h>
 #include <ctype.h>
 
-#define  ANGLE		short
-#define  AEND		(-11111)
+#include "setscan.h"
 
-setscan(ang, arg)			/* set up scan according to arg */
-register ANGLE  *ang;
-register char  *arg;
+int
+setscan(			/* set up scan according to arg */
+register ANGLE  *ang,
+register char  *arg
+)
 {
 	int  state = ',';
 	int  start, finish, step;
@@ -34,7 +37,7 @@ register char  *arg;
 		default:
 			return(-1);
 		}
-		if (!isdigit(*arg) && *arg != '-' && *arg != '+')
+		if (!isdigit(*arg))
 			return(-1);
 		do
 			arg++;