Avoid undefined results when the parameter is out of range.

This commit is contained in:
Geoff Thorpe 2004-04-02 06:25:30 +00:00
parent 914f79ba45
commit 22083b182a

View file

@ -304,7 +304,7 @@ int sk_num(const STACK *st)
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];
}