Mercurial > vim

comparison src/screen.c @ 16914:66a94fd8e37d v8.1.1458

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
patch 8.1.1458: crash when using gtags commit https://github.com/vim/vim/commit/0b4c9eddb5752d46b65d16e42230b1228f230f40 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 3 22:04:23 2019 +0200 patch 8.1.1458: crash when using gtags Problem: Crash when using gtags. (issue https://github.com/vim/vim/issues/4102) Solution: Check for negative row or col in screen_puts_len(). (Christian Brabandt)
author Bram Moolenaar <Bram@vim.org>
date Mon, 03 Jun 2019 22:15:05 +0200
parents 6a99709c6ae3
children 90cec755ff80
comparison
equal deleted inserted replaced
16913:1d61668fb248 16914:66a94fd8e37d
7705 #endif 7705 #endif
7706 int force_redraw_this; 7706 int force_redraw_this;
7707 int force_redraw_next = FALSE; 7707 int force_redraw_next = FALSE;
7708 int need_redraw; 7708 int need_redraw;
7709 7709
7710 if (ScreenLines == NULL || row >= screen_Rows) /* safety check */ 7710 // Safety check. The check for negative row and column is to fix issue
7711 // #4102. TODO: find out why row/col could be negative.
7712 if (ScreenLines == NULL
7713 || row >= screen_Rows || row < 0
7714 || col >= screen_Columns || col < 0)
7711 return; 7715 return;
7712 off = LineOffset[row] + col; 7716 off = LineOffset[row] + col;
7713 7717
7714 /* When drawing over the right halve of a double-wide char clear out the 7718 /* When drawing over the right halve of a double-wide char clear out the
7715 * left halve. Only needed in a terminal. */ 7719 * left halve. Only needed in a terminal. */