u3: check for overflow in interpreter if guard page not present
@@ -1444,10 +1444,9 @@ _n_push(c3_ys mov, c3_ys off, u3_noun a)
{
u3R->cap_p += mov;
- // XX define symbol to control guard page
- // or switch to u3a_push()
+ // XX switch to u3a_push()
//
-#if 0
+#ifndef U3_GUARD_PAGE
if ( 0 == off ) {
if( !(u3R->cap_p > u3R->hat_p) ) {
u3m_bail(c3__meme);
