dnl @ ../doc/m4.texi:3031: 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.
include(`join.m4')
dnl @result{}
join,join(`-'),join(`-', `'),join(`-', `', `')
dnl @result{},,,
joinall,joinall(`-'),joinall(`-', `'),joinall(`-', `', `')
dnl @result{},,,-
join(`-', `1')
dnl @result{}1
join(`-', `1', `2', `3')
dnl @result{}1-2-3
join(`', `1', `2', `3')
dnl @result{}123
join(`-', `', `1', `', `', `2', `')
dnl @result{}1-2
joinall(`-', `', `1', `', `', `2', `')
dnl @result{}-1---2-
join(`,', `1', `2', `3')
dnl @result{}1,2,3
define(`nargs', `$#')dnl
nargs(join(`,', `1', `2', `3'))
dnl @result{}1