To: vim_dev@googlegroups.com
Subject: Patch 7.4.812
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------
 
Patch 7.4.812
Problem:    Gcc sanitizer complains about using a NULL pointer to memmove().
Solution:   Only call memmove when there is something to move. (Vittorio
            Zecca)
Files:      src/memline.c
 
 
*** ../vim-7.4.811/src/memline.c	2015-07-17 14:16:49.846596759 +0200
--- src/memline.c	2015-08-08 14:14:21.129601118 +0200
***************
*** 3834,3840 ****
  					(buf->b_ml.ml_stack_size + STACK_INCR));
  	if (newstack == NULL)
  	    return -1;
! 	mch_memmove(newstack, buf->b_ml.ml_stack,
  					     (size_t)top * sizeof(infoptr_T));
  	vim_free(buf->b_ml.ml_stack);
  	buf->b_ml.ml_stack = newstack;
--- 3834,3841 ----
  					(buf->b_ml.ml_stack_size + STACK_INCR));
  	if (newstack == NULL)
  	    return -1;
! 	if (top > 0)
! 	    mch_memmove(newstack, buf->b_ml.ml_stack,
  					     (size_t)top * sizeof(infoptr_T));
  	vim_free(buf->b_ml.ml_stack);
  	buf->b_ml.ml_stack = newstack;
*** ../vim-7.4.811/src/version.c	2015-08-04 22:02:45.215119715 +0200
--- src/version.c	2015-08-08 18:23:30.167691718 +0200
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     812,
  /**/
 
-- 
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                                  The Quest for the Holy Grail (Monty Python)
 
 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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