Cast isdigit()'s argument to unsigned char.

ok guenther@

diff --git a/games/hack/hack.options.c b/games/hack/hack.options.c
index 18e96cb..2134589 100644 (file)
--- a/games/hack/hack.options.c
+++ b/games/hack/hack.options.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: hack.options.c,v 1.10 2015/09/27 05:13:11 guenther Exp $      */
+/*     $OpenBSD: hack.options.c,v 1.11 2015/10/24 17:56:42 mmcc Exp $  */
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -178,9 +178,9 @@ parseoptions(char *opts, boolean from_env)
                op++;
                while(*op) {
                        num = 1;
-                       if(isdigit(*op)) {
+                       if(isdigit((unsigned char)*op)) {
                                num = atoi(op);
-                               while(isdigit(*op)) op++;
+                               while(isdigit((unsigned char)*op)) op++;
                        } else
                        if(*op == '!') {
                                negated = !negated;