Patch 8.1.1458

[Bram Moolenaar]

Patch 8.1.1458
Problem: Crash when using gtags. (issue #4102)
Solution: Check for negative row or col in screen_puts_len(). (Christian
Brabandt)
Files: src/screen.c


*** ../vim-8.1.1457/src/screen.c 2019-06-02 20:33:27.018782294 +0200
--- src/screen.c 2019-06-03 22:01:02.461393381 +0200
***************
*** 7707,7713 ****
int force_redraw_next = FALSE;
int need_redraw;

! if (ScreenLines == NULL || row >= screen_Rows) /* safety check */
return;
off = LineOffset[row] + col;

--- 7707,7717 ----
int force_redraw_next = FALSE;
int need_redraw;

! // Safety check. The check for negative row and column is to fix issue
! // #4102. TODO: find out why row/col could be negative.
! if (ScreenLines == NULL
! || row >= screen_Rows || row < 0
! || col >= screen_Columns || col < 0)
return;
off = LineOffset[row] + col;

*** ../vim-8.1.1457/src/version.c 2019-06-03 21:14:55.129048884 +0200
--- src/version.c 2019-06-03 22:03:37.712481097 +0200
***************
*** 769,770 ****
--- 769,772 ----
{ /* Add new patch number below this line */
+ /**/
+ 1458,
/**/

--
You are only young once, but you can stay immature indefinitely.

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