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forloop3.m4
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divert(`-1') # forloop_arg(from, to, macro) - invoke MACRO(value) for # each value between FROM and TO, without define overhead define(`forloop_arg', `ifelse(eval(`($1) <= ($2)'), `1', `_forloop(`$1', eval(`$2'), `$3(', `)')')') # forloop(var, from, to, stmt) - refactored to share code define(`forloop', `ifelse(eval(`($2) <= ($3)'), `1', `pushdef(`$1')_forloop(eval(`$2'), eval(`$3'), `define(`$1',', `)$4')popdef(`$1')')') define(`_forloop', `$3`$1'$4`'ifelse(`$1', `$2', `', `$0(incr(`$1'), `$2', `$3', `$4')')') divert`'dnl