@@ -115,10 +115,17 @@
  * @return A new, autoreleased set with the specified objects
  */
 + (instancetype)setWithObjects: (ObjectType const _Nonnull *_Nonnull)objects
 			 count: (size_t)count;
 
+/**
+ * @brief Initializes an already allocated set to be empty.
+ *
+ * @return An initialized set
+ */
+- (instancetype)init OF_DESIGNATED_INITIALIZER;
+
 /**
  * @brief Initializes an already allocated set with the specified set.
  *
  * @param set The set to initialize the set with
  * @return An initialized set with the specified set
@@ -158,11 +165,11 @@
  * @param objects An array of objects for the set
  * @param count The number of objects in the specified array
  * @return An initialized set with the specified objects
  */
 - (instancetype)initWithObjects: (ObjectType const _Nonnull *_Nonnull)objects
-			  count: (size_t)count;
+			  count: (size_t)count OF_DESIGNATED_INITIALIZER;
 
 /**
  * @brief Returns an OFEnumerator to enumerate through all objects of the set.
  *
  * @return An OFEnumerator to enumerate through all objects of the set