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dnl @ ../doc/m4.texi:7790: 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.
undivert(`forloop2.m4')dnl
dnl @result{}divert(`-1')
dnl @result{}# forloop(var, from, to, stmt) - improved version:
dnl @result{}# works even if VAR is not a strict macro name
dnl @result{}# performs sanity check that FROM is larger than TO
dnl @result{}# allows complex numerical expressions in TO and FROM
dnl @result{}define(`forloop', `ifelse(eval(`($2) <= ($3)'), `1',
dnl @result{} `pushdef(`$1')_$0(`$1', eval(`$2'),
dnl @result{} eval(`$3'), `$4')popdef(`$1')')')
dnl @result{}define(`_forloop',
dnl @result{} `define(`$1', `$2')$4`'ifelse(`$2', `$3', `',
dnl @result{} `$0(`$1', incr(`$2'), `$3', `$4')')')
dnl @result{}divert`'dnl
include(`forloop2.m4')
dnl @result{}
forloop(`i', `2', `1', `no iteration occurs')
dnl @result{}
forloop(`', `1', `2', ` odd iterator name')
dnl @result{} odd iterator name odd iterator name
forloop(`i', `5 + 5', `0xc', ` 0x`'eval(i, `16')')
dnl @result{} 0xa 0xb 0xc
forloop(`i', `a', `b', `non-numeric bounds')
dnl @error{}m4:stdin:6: bad expression in eval (bad input): (a) <= (b)
dnl @result{}
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