dnl @ ../doc/m4.texi:2113: 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(`echo', `$@')dnl echo(echo(`01234567890123456789', `01234567890123456789') echo(`98765432109876543210', `98765432109876543210')) dnl @result{}01234567890123456789,01234567890123456789 dnl @result{}98765432109876543210,98765432109876543210 len((echo(`01234567890123456789', `01234567890123456789')echo(`98765432109876543210', `98765432109876543210'))) dnl @result{}84 indir(`echo', indir(`echo', `01234567890123456789', `01234567890123456789') indir(`echo', `98765432109876543210', `98765432109876543210')) dnl @result{}01234567890123456789,01234567890123456789 dnl @result{}98765432109876543210,98765432109876543210 define(`argn', `$#')dnl define(`echo1', `-$@-')define(`echo2', `,$@,')dnl echo1(`1', `2', `3') argn(echo1(`1', `2', `3')) dnl @result{}-1,2,3- 3 echo2(`1', `2', `3') argn(echo2(`1', `2', `3')) dnl @result{},1,2,3, 5