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+To: vim-dev@vim.org
+Subject: Patch 7.2.366
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.2.366
+Problem:    CTRL-B doesn't go back to the first line of the buffer.
+Solution:   Avoid an overflow when adding MAXCOL.
+Files:	    src/move.c
+
+
+*** ../vim-7.2.365/src/move.c	2010-02-03 17:42:59.000000000 +0100
+--- src/move.c	2010-02-17 17:49:34.000000000 +0100
+***************
+*** 1610,1616 ****
+   * Add one line above "lp->lnum".  This can be a filler line, a closed fold or
+   * a (wrapped) text line.  Uses and sets "lp->fill".
+   * Returns the height of the added line in "lp->height".
+!  * Lines above the first one are incredibly high.
+   */
+      static void
+  topline_back(lp)
+--- 1610,1616 ----
+   * Add one line above "lp->lnum".  This can be a filler line, a closed fold or
+   * a (wrapped) text line.  Uses and sets "lp->fill".
+   * Returns the height of the added line in "lp->height".
+!  * Lines above the first one are incredibly high: MAXCOL.
+   */
+      static void
+  topline_back(lp)
+***************
+*** 1942,1948 ****
+  	{
+  	    loff.lnum = curwin->w_topline;
+  	    topline_back(&loff);
+! 	    if (used + loff.height > curwin->w_height)
+  		break;
+  	    used += loff.height;
+  #ifdef FEAT_DIFF
+--- 1942,1948 ----
+  	{
+  	    loff.lnum = curwin->w_topline;
+  	    topline_back(&loff);
+! 	    if (loff.height == MAXCOL || used + loff.height > curwin->w_height)
+  		break;
+  	    used += loff.height;
+  #ifdef FEAT_DIFF
+***************
+*** 2021,2027 ****
+  
+  	/* Add one line above */
+  	topline_back(&loff);
+! 	used += loff.height;
+  	if (used > curwin->w_height)
+  	    break;
+  	if (loff.lnum >= curwin->w_botline
+--- 2021,2030 ----
+  
+  	/* Add one line above */
+  	topline_back(&loff);
+! 	if (loff.height == MAXCOL)
+! 	    used = MAXCOL;
+! 	else
+! 	    used += loff.height;
+  	if (used > curwin->w_height)
+  	    break;
+  	if (loff.lnum >= curwin->w_botline
+***************
+*** 2175,2181 ****
+  	if (below > above)	    /* add a line above the cursor */
+  	{
+  	    topline_back(&loff);
+! 	    used += loff.height;
+  	    if (used > curwin->w_height)
+  		break;
+  	    above += loff.height;
+--- 2178,2187 ----
+  	if (below > above)	    /* add a line above the cursor */
+  	{
+  	    topline_back(&loff);
+! 	    if (loff.height == MAXCOL)
+! 		used = MAXCOL;
+! 	    else
+! 		used += loff.height;
+  	    if (used > curwin->w_height)
+  		break;
+  	    above += loff.height;
+***************
+*** 2472,2480 ****
+  	    while (n <= curwin->w_height && loff.lnum >= 1)
+  	    {
+  		topline_back(&loff);
+! 		n += loff.height;
+  	    }
+! 	    if (n <= curwin->w_height)		    /* at begin of file */
+  	    {
+  		curwin->w_topline = 1;
+  #ifdef FEAT_DIFF
+--- 2478,2489 ----
+  	    while (n <= curwin->w_height && loff.lnum >= 1)
+  	    {
+  		topline_back(&loff);
+! 		if (loff.height == MAXCOL)
+! 		    n = MAXCOL;
+! 		else
+! 		    n += loff.height;
+  	    }
+! 	    if (loff.lnum < 1)			/* at begin of file */
+  	    {
+  		curwin->w_topline = 1;
+  #ifdef FEAT_DIFF
+*** ../vim-7.2.365/src/version.c	2010-02-17 17:34:38.000000000 +0100
+--- src/version.c	2010-02-17 18:13:22.000000000 +0100
+***************
+*** 683,684 ****
+--- 683,686 ----
+  {   /* Add new patch number below this line */
++ /**/
++     366,
+  /**/
+
+-- 
+hundred-and-one symptoms of being an internet addict:
+247. You use www.switchboard.com instead of dialing 411 and 555-12-12
+     for directory assistance.
+
+ /// 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    ///