diff -r 428a194e3e59 -r 6c78cc6bd7a6 Source/BitHolder.m
--- a/Source/BitHolder.m	Sun Mar 16 15:06:47 2008 -0700
+++ b/Source/BitHolder.m	Thu Jul 03 17:44:30 2008 -0700
@@ -57,6 +57,14 @@
     }
 }
 
+- (void) destroyBit
+{
+    if( _bit ) {
+        [_bit destroy];
+        setObj(&_bit,nil);
+    }
+}
+
 - (BOOL) isEmpty    {return self.bit==nil;}
 
 @synthesize highlighted=_highlighted;