Commit: patch 9.1.0730: Crash with cursor-screenline and narrow window

[Christian Brabandt]

patch 9.1.0730: Crash with cursor-screenline and narrow window

Commit: https://github.com/vim/vim/commit/59149f02692804267e7cc0665d0334f6ff4675be
Author: zeertzjq <zeer...@outlook.com>
Date: Sat Sep 14 10:40:29 2024 +0200

patch 9.1.0730: Crash with cursor-screenline and narrow window

Problem: Crash with cursor-screenline and narrow window
(elig0n)
Solution: Don't set right_col when width2 is 0 (zeertzjq).

fixes: #15677
closes: #15678

Signed-off-by: zeertzjq <zeer...@outlook.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/drawline.c b/src/drawline.c
index b627192a4..fd5d56b43 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -62,7 +62,7 @@ margin_columns_win(win_T *wp, int *left_col, int *right_col)
*left_col = 0;
*right_col = width1;

- if (wp->w_virtcol >= (colnr_T)width1)
+ if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
*right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2;
if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
*left_col = (wp->w_virtcol - width1) / width2 * width2 + width1;
diff --git a/src/testdir/test_cursorline.vim b/src/testdir/test_cursorline.vim
index bdde670d2..d258111ae 100644
--- a/src/testdir/test_cursorline.vim
+++ b/src/testdir/test_cursorline.vim
@@ -309,6 +309,17 @@ func Test_cursorline_screenline_update()
call StopVimInTerminal(buf)
endfunc

+func Test_cursorline_screenline_zero_width()
+ CheckOption foldcolumn
+
+ set cursorline culopt=screenline winminwidth=1 foldcolumn=1
+ " This used to crash Vim
+ 1vnew | redraw
+
+ bwipe!
+ set cursorline& culopt& winminwidth& foldcolumn&
+endfunc
+
func Test_cursorline_cursorbind_horizontal_scroll()
CheckScreendump

diff --git a/src/version.c b/src/version.c
index c1ee2d575..4f6375bd3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 730,
/**/
729,
/**/