[Issue 13473] std.algorithm.expand

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13473

--- Comment #2 from bearophile_hugs at eml.cc ---
(In reply to hsteoh from comment #1)
> Aren't all cases of "expand" reducible to "recurrence"? Do you have an
> example where this isn't possible / is too ugly?

I think the functionality of recurrence is a superset of the functionality of
this function expand. But expand looks more fundamental and cleaner.

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