@@ -62,10 +62,15 @@
 
 + (instancetype)dataArrayWithItemSize: (size_t)itemSize
 {
 	return [[[self alloc] initWithItemSize: itemSize] autorelease];
 }
+
++ (instancetype)dataArrayWithCapacity: (size_t)capacity
+{
+	return [[[self alloc] initWithCapacity: capacity] autorelease];
+}
 
 + (instancetype)dataArrayWithItemSize: (size_t)itemSize
 			     capacity: (size_t)capacity
 {
 	return [[[self alloc] initWithItemSize: itemSize
@@ -102,10 +107,16 @@
 - initWithItemSize: (size_t)itemSize
 {
 	return [self initWithItemSize: itemSize
 			     capacity: 0];
 }
+
+- initWithCapacity: (size_t)capacity
+{
+	return [self initWithItemSize: 1
+			     capacity: capacity];
+}
 
 - initWithItemSize: (size_t)itemSize
 	  capacity: (size_t)capacity
 {
 	self = [super init];