Avoid undefined results when the parameter is out of range.

This commit is contained in:
Geoff Thorpe 2004-04-02 06:25:53 +00:00
parent f36f469430
commit 7ef7a1b3de

View file

@ -306,7 +306,7 @@ int sk_num(const STACK *st)
char *sk_value(const STACK *st, int i) char *sk_value(const STACK *st, int i)
{ {
if(st == NULL) return NULL; if(!st || (i < 0) || (i >= st->num)) return NULL;
return st->data[i]; return st->data[i];
} }