@@ -355,11 +355,11 @@
 	}
 }
 
 - copy
 {
-	OFDataArray *copy = [[OFDataArray alloc] initWithItemSize: itemSize];
+	OFDataArray *copy = [[isa alloc] initWithItemSize: itemSize];
 
 	[copy addNItems: count
 	     fromCArray: data];
 
 	return copy;
@@ -575,16 +575,6 @@
 	if (size != newSize)
 		data = [self resizeMemory: data
 				   toSize: newSize];
 	size = newSize;
 }
-
-- copy
-{
-	OFDataArray *copy = [[OFBigDataArray alloc] initWithItemSize: itemSize];
-
-	[copy addNItems: count
-	     fromCArray: data];
-
-	return copy;
-}
 @end