@@ -191,15 +191,15 @@
 
 	for (i = 0; i < OF_SHA1_DIGEST_SIZE; i++)
 		_digest[i] = (char)((_state[i >> 2] >>
 		    ((3 - (i & 3)) * 8)) & 255);
 
-	_calculated = YES;
+	_calculated = true;
 
 	return _digest;
 }
 
-- (BOOL)isCalculated
+- (bool)isCalculated
 {
 	return _calculated;
 }
 @end