Cast isblank()'s argument to unsigned char.

ok guenther@

1 files changed, 3 insertions, 3 deletions

diff --git a/games/factor/factor.c b/games/factor/factor.c
index 4507ce9c3e5..56cc0dc3d14 100644
--- a/games/factor/factor.c
+++ b/games/factor/factor.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: factor.c,v 1.21 2015/10/14 08:12:12 doug Exp $	*/
+/*	$OpenBSD: factor.c,v 1.22 2015/10/24 17:31:00 mmcc Exp $	*/
 /*	$NetBSD: factor.c,v 1.5 1995/03/23 08:28:07 cgd Exp $	*/
 
 /*
@@ -109,7 +109,7 @@ main(int argc, char *argv[])
 				exit (0);
 			}
 			buf[strcspn(buf, "\n")] = '\0';
-			for (p = buf; isblank(*p); ++p)
+			for (p = buf; isblank((unsigned char)*p); ++p)
 				;
 			if (*p == '\0')
 				continue;
@@ -119,7 +119,7 @@ main(int argc, char *argv[])
 			val = strtouq(buf, &p, 10);
 			if (errno)
 				err(1, "%s", buf);
-			for (; isblank(*p); ++p)
+			for (; isblank((unsigned char)*p); ++p)
 				;
 			if (*p != '\0')
 				errx(1, "%s: illegal numeric format.", buf);