dnl @ ../doc/m4.texi:8514: Origin of test
dnl @ expected status: 0
dnl @ extra options: 
dnl @ Copyright (C) 2006, 2007, 2008, 2009 Free Software
dnl @ Foundation, Inc.
dnl @ This file is free software; the Free Software Foundation
dnl @ gives unlimited permission to copy and/or distribute it
dnl @ with or without modifications, as long as this notice
dnl @ is preserved.
define(`cleardivert',
  `pushdef(`_n', divnum)divert(`-1')undivert($@)divert(_n)popdef(`_n')')
dnl @result{}
divert(`1')one
divert
dnl @result{}
cleardivert
dnl @result{}
undivert
dnl @result{}one
dnl @result{}
define(`cleardivert',
  `pushdef(`_num', divnum)divert(`-1')ifelse(`$#', `0',
    `undivert`'', `undivert($@)')divert(_num)popdef(`_num')')
dnl @result{}
divert(`2')two
divert
dnl @result{}
cleardivert
dnl @result{}
undivert
dnl @result{}