Modified: MacRuby/trunk/rational.c (4360 => 4361)

--- MacRuby/trunk/rational.c	2010-07-14 20:37:07 UTC (rev 4360)
+++ MacRuby/trunk/rational.c	2010-07-14 23:32:17 UTC (rev 4361)
@@ -1582,13 +1582,13 @@
 nurat_marshal_load(VALUE self, SEL sel, VALUE a)
 {
     get_dat1(self);
-    dat->num = RARRAY_PTR(a)[0];
-    dat->den = RARRAY_PTR(a)[1];
-    rb_copy_generic_ivar(self, a);
-
-    if (f_zero_p(dat->den))
+    VALUE ary = rb_convert_type(a, T_ARRAY, "Array", "to_ary");
+    dat->num = RARRAY_AT(ary, 0);
+    dat->den = RARRAY_AT(ary ,1);
+    rb_copy_generic_ivar(self, ary);
+    if (f_zero_p(dat->den)) {
 	rb_raise_zerodiv();
-
+    }
     return self;
 }