To: vim_dev@googlegroups.com
Subject: Patch 8.0.0561
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 8.0.0561
Problem:    Undefined behavior when using backslash after empty line.
Solution:   Check for an empty line. (Dominique Pelle, closes #1631)
Files:      src/misc2.c, src/testdir/test_vimscript.vim


*** ../vim-8.0.0560/src/misc2.c	2017-03-29 17:30:23.160136913 +0200
--- src/misc2.c	2017-04-10 22:19:28.426376399 +0200
***************
*** 2129,2135 ****
  {
      int    len;
  
!     if (s == NULL)
  	return;
      len = (int)STRLEN(s);
      if (ga_grow(gap, len) == OK)
--- 2129,2135 ----
  {
      int    len;
  
!     if (s == NULL || *s == NUL)
  	return;
      len = (int)STRLEN(s);
      if (ga_grow(gap, len) == OK)
*** ../vim-8.0.0560/src/testdir/test_vimscript.vim	2017-03-18 20:18:42.067950195 +0100
--- src/testdir/test_vimscript.vim	2017-04-10 22:19:28.426376399 +0200
***************
*** 1310,1315 ****
--- 1310,1326 ----
  endfunc
  
  "-------------------------------------------------------------------------------
+ " Test 96:  line continuation						    {{{1
+ "
+ "           Undefined behavior was detected by ubsan with line continuation
+ "           after an empty line.
+ "-------------------------------------------------------------------------------
+ func Test_script_emty_line_continuation()
+ 
+     \
+ endfunc
+ 
+ "-------------------------------------------------------------------------------
  " Modelines								    {{{1
  " vim: ts=8 sw=4 tw=80 fdm=marker
  " vim: fdt=substitute(substitute(foldtext(),\ '\\%(^+--\\)\\@<=\\(\\s*\\)\\(.\\{-}\\)\:\ \\%(\"\ \\)\\=\\(Test\ \\d*\\)\:\\s*',\ '\\3\ (\\2)\:\ \\1',\ \"\"),\ '\\(Test\\s*\\)\\(\\d\\)\\D\\@=',\ '\\1\ \\2',\ "")
*** ../vim-8.0.0560/src/version.c	2017-04-10 21:46:33.442970106 +0200
--- src/version.c	2017-04-10 22:20:59.681796145 +0200
***************
*** 766,767 ****
--- 766,769 ----
  {   /* Add new patch number below this line */
+ /**/
+     561,
  /**/

-- 
CONCORDE: Message for you, sir.
   He falls forward revealing the arrow with the note.
                 "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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