@@ -28,12 +28,12 @@
 #import "OFSerialization.h"
 
 @class OFArray;
 
 #ifdef OF_HAVE_BLOCKS
-typedef void (^of_set_enumeration_block_t)(id object, BOOL *stop);
-typedef BOOL (^of_set_filter_block_t)(id object);
+typedef void (^of_set_enumeration_block_t)(id object, bool *stop);
+typedef bool (^of_set_filter_block_t)(id object);
 #endif
 
 /*!
  * @brief An abstract class for an unordered set of unique objects.
  *
@@ -131,20 +131,20 @@
 /*!
  * @brief Returns whether the receiver is a subset of the specified set.
  *
  * @return Whether the receiver is a subset of the specified set
  */
-- (BOOL)isSubsetOfSet: (OFSet*)set;
+- (bool)isSubsetOfSet: (OFSet*)set;
 
 /*!
  * @brief Returns whether the receiver and the specified set have at least one
  *	  object in common.
  *
  * @return Whether the receiver and the specified set have at least one object
  *	   in common
  */
-- (BOOL)intersectsSet: (OFSet*)set;
+- (bool)intersectsSet: (OFSet*)set;
 
 /*!
  * @brief Creates a new set which contains the objects which are in the
  *	  receiver, but not in the specified set.
  *
@@ -176,15 +176,15 @@
  */
 - (void)enumerateObjectsUsingBlock: (of_set_enumeration_block_t)block;
 
 /*!
  * @brief Creates a new set, only containing the objects for which the block
- *	  returns YES.
+ *	  returns true.
  *
  * @param block A block which determines if the object should be in the new set
  * @return A new, autoreleased OFSet
  */
 - (OFSet*)filteredSetUsingBlock: (of_set_filter_block_t)block;
 #endif
 @end
 
 #import "OFMutableSet.h"