[Lemon-commits] deba: r3420 - lemon/trunk/lemon

[Lemon SVN]

Author: deba
Date: Mon Dec 17 10:54:26 2007
New Revision: 3420

Modified:
   lemon/trunk/lemon/unionfind.h

Log:
Bug fix



Modified: lemon/trunk/lemon/unionfind.h
==============================================================================
--- lemon/trunk/lemon/unionfind.h	(original)
+++ lemon/trunk/lemon/unionfind.h	Mon Dec 17 10:54:26 2007
@@ -692,6 +692,9 @@
       int cdx = newClass();
       classes[cdx].prev = -1;
       classes[cdx].next = firstClass;
+      if (firstClass != -1) {
+	classes[firstClass].prev = cdx;
+      }
       firstClass = cdx;
       
       int idx = newItem();