Re: [PATCH] Gnu Elpa: stream.el: Add some more basic stream operations

[Michael Heerdegen]

Nicolas Petton <address@hidden> writes:

> > `stream-scan' is useful and not redundant.

> Yes, I get it now.  However I'm still a bit confused by its name.

The name is borrowed from Haskell.  Other suggestions welcome.


> > `stream-reduce' was indeed redundant, as the generic `seq-reduce'
> > already works for streams, so I removed it.
>
> Your implementation in your previous patch was however lazy, right?
> Would it make sense to add a specific implementation of `seq-reduce'
> for streams that'd be lazy?

I don't understand what that means: how can "reduce" be lazy at all?  It
needs to generate all stream elements to compute the requested value,
and that at call time.


Regards,

Michael.