patch 8.2.0120: virtcol() does not check arguments to be valid Commit: https://github.com/vim/vim/commit/b3d33d8570bc49a7f90990572d7f9630a1bfae02 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 15 20:36:55 2020 +0100 patch 8.2.0120: virtcol() does not check arguments to be valid Problem: virtcol() does not check arguments to be valid, which may lead to a crash. Solution: Check the column to be valid. Do not decrement MAXCOL. (closes #5480)

"Test for benchmarking the RE engine

so small.vim
if !has("reltime") | finish | endif
func! Measure(file, pattern, arg)
	for re in range(3)
	    let sstart=reltime()
	    let cmd=printf("../vim -u NONE -N --cmd ':set re=%d'".
		\ " -c 'call search(\"%s\", \"\", \"\", 10000)' -c ':q!' %s", re, escape(a:pattern, '\\'), empty(a:arg) ? '' : a:arg)
	    call system(cmd. ' '. a:file)
	    $put =printf('file: %s, re: %d, time: %s', a:file, re, reltimestr(reltime(sstart)))
	endfor
endfunc