patch 9.0.0192: possible invalid memory access when 'cmdheight' is zero Commit: https://github.com/vim/vim/commit/fdc5d17d58cc9c9edc9fb2816e1afaabc531bf1e Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 11 15:52:14 2022 +0100 patch 9.0.0192: possible invalid memory access when 'cmdheight' is zero Problem: Possible invalid memory access when 'cmdheight' is zero. (Martin Tournoij) Solution: Avoid going over the end of w_lines[] when w_height is Rows. (closes #10882)

" Script to fill the window with emoji characters, one per line.
" Source this script: :source %

if &modified
  new
else
  enew
endif

" Use a compiled Vim9 function for speed
def DoIt()
  var lnum = 1
  for c in range(0x100, 0x1ffff)
    var cs = nr2char(c)
    if charclass(cs) == 3
      setline(lnum, '|' .. cs .. '| ' .. strwidth(cs))
      lnum += 1
    endif
  endfor
enddef

call DoIt()
set nomodified