>
> Was wondering if there could be a variation of "for i = 0 up to n", when n
> is unknown.
>
> Named it "index-pump".
>
> Instead of "looping over a body of code", we are "index-pumping a
> function".
>
> : index-pump ( quot -- m )
> 1 swap [ dup ] prepose [ 1 + ] while ; inline
>
Er, seems like this already exists ...
http://docs.factorcode.org/content/word-iterate%2Cproject-euler.203.private.html
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