commit e0f869196930ef5f25a0ac41c9215b09c9ce2d3c
author Bram Moolenaar <Bram@vim.org> Wed Mar 01 17:55:31 2023 +0000
committer Bram Moolenaar <Bram@vim.org> Wed Mar 01 17:55:31 2023 +0000
tree 0c336b208dc0c423f9ec6778492392a3d80be8e5
parent ad60898aa47b44fdece12d28c471fb50df27fb50

patch 9.0.1367: divide by zero in zero-width window

Problem:    Divide by zero in zero-width window.
Solution:   Check the width is positive.

src/move.c

diff --git a/src/move.c b/src/move.c
index 921fec6..0550ef5 100644
--- a/src/move.c
+++ b/src/move.c
@@ -1734,7 +1734,7 @@
 	    col -= width1;
 	    ++row;
 	}
-	if (col > width2)
+	if (col > width2 && width2 > 0)
 	{
 	    row += col / width2;
 	    col = col % width2;

src/testdir/test_window_cmd.vim

diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
index 969edff..3d29266 100644
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -1772,7 +1772,7 @@
   let &t_WS = save_WS
 endfunc
 
-function Test_splitkeep_cmdwin_cursor_position()
+func Test_splitkeep_cmdwin_cursor_position()
   set splitkeep=screen
   call setline(1, range(&lines))
 
@@ -1797,9 +1797,9 @@
 
   %bwipeout!
   set splitkeep&
-endfunction
+endfunc
 
-function Test_splitkeep_misc()
+func Test_splitkeep_misc()
   set splitkeep=screen
   set splitbelow
 
@@ -1832,7 +1832,7 @@
   set splitkeep&
 endfunc
 
-function Test_splitkeep_callback()
+func Test_splitkeep_callback()
   CheckScreendump
   let lines =<< trim END
     set splitkeep=screen
@@ -1865,7 +1865,7 @@
   call StopVimInTerminal(buf)
 endfunc
 
-function Test_splitkeep_fold()
+func Test_splitkeep_fold()
   CheckScreendump
 
   let lines =<< trim END
@@ -1895,9 +1895,9 @@
   call VerifyScreenDump(buf, 'Test_splitkeep_fold_4', {})
 
   call StopVimInTerminal(buf)
-endfunction
+endfunc
 
-function Test_splitkeep_status()
+func Test_splitkeep_status()
   CheckScreendump
 
   let lines =<< trim END
@@ -1915,9 +1915,9 @@
   call VerifyScreenDump(buf, 'Test_splitkeep_status_1', {})
 
   call StopVimInTerminal(buf)
-endfunction
+endfunc
 
-function Test_new_help_window_on_error()
+func Test_new_help_window_on_error()
   help change.txt
   execute "normal! /CTRL-@\<CR>"
   silent! execute "normal! \<C-W>]"
@@ -1927,7 +1927,26 @@
 
   call assert_equal(wincount, winnr('$'))
   call assert_equal(expand("<cword>"), "'mod'")
-endfunction
+endfunc
+
+func Test_smoothscroll_in_zero_width_window()
+  let save_lines = &lines
+  let save_columns = &columns
+
+  winsize 0 24
+  set cpo+=n
+  exe "noremap 0 \<C-W>n\<C-W>L"
+  norm 000000
+  set number smoothscroll
+  exe "norm \<C-Y>"
+
+  only!
+  let &lines = save_lines
+  let &columns = save_columns
+  set cpo-=n
+  unmap 0
+  set nonumber nosmoothscroll
+endfunc
 
 
 " vim: shiftwidth=2 sts=2 expandtab

src/version.c

diff --git a/src/version.c b/src/version.c
index 200779d..a370b3b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1367,
+/**/
     1366,
 /**/
     1365,