| dnl @ ../doc/m4.texi:4951: 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(`f', `ifelse(`$1', `0', `Answer: 0!=1 |
| ', eval(`$1>1'), `0', `Answer: $2$1=eval(`$2$1') |
| ', `m4wrap(`f(decr(`$1'), `$2$1*')')')') |
| dnl @result{} |
| f(`10') |
| dnl @result{} |
| dnl @result{}Answer: 10*9*8*7*6*5*4*3*2*1=3628800 |
