To: vim-dev@vim.org
Subject: Patch 7.1.155
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.1.155
Problem:    Crash when 'undolevels' is 0 and repeating "udd". (James Vega)
Solution:   When there is only one branch use u_freeheader() to delete it.
Files:	    src/undo.c


*** ../vim-7.1.154/src/undo.c	Mon Oct  1 22:53:27 2007
--- src/undo.c	Sat Nov 10 13:45:28 2007
***************
*** 1677,1682 ****
--- 1677,1690 ----
      u_header_T	    **uhpp;	/* if not NULL reset when freeing this header */
  {
      u_header_T	    *tofree, *next;
+ 
+     /* If this is the top branch we may need to use u_freeheader() to update
+      * all the pointers. */
+     if (uhp == buf->b_u_oldhead)
+     {
+ 	u_freeheader(buf, uhp, uhpp);
+ 	return;
+     }
  
      if (uhp->uh_alt_prev != NULL)
  	uhp->uh_alt_prev->uh_alt_next = NULL;
*** ../vim-7.1.154/src/version.c	Thu Nov  8 21:23:34 2007
--- src/version.c	Sat Nov 10 22:49:40 2007
***************
*** 668,669 ****
--- 668,671 ----
  {   /* Add new patch number below this line */
+ /**/
+     155,
  /**/

-- 
I AM THANKFUL...
...for the piles of laundry and ironing because it means I
have plenty of clothes to wear.

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\        download, build and distribute -- http://www.A-A-P.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///