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Re: name an array function
From: |
Daniel Llorens |
Subject: |
Re: name an array function |
Date: |
Mon, 21 Nov 2016 15:38:02 +0100 |
On 21 Nov 2016, at 15:01, Panicz Maciej Godek <address@hidden> wrote:
> As far as accessors are concerned, I'm not sure whether they actaully need
> names. Maybe it would be better to make them applicable, and produce
> "procedures with setters"?
I'd absolutely prefer (A i j) to (array-whatever A i j). Arrays *are* functions
of indices.
But the mechanism for applicable objects isn't being used right now for any of
the data structures with accessors. It isn't documented in the manual, either.
I don't know how it works. Some patches are needed there, examples. Moreover if
the type of arrays is changed (which I believe is needed to make arrays an
applicable object), then we must retain compatibility with all the existing
array procedures. I like the idea, but I don't think it's going to happen for
2.2.
Procedures with setters would remove the need for the modifying function
(array-slice-copy! or whatever it ends up being called), but this isn't done
now even for the pair array-ref / array-set!. However it is easier to implement.
My idea has always been to move the array descriptor (storage pointer, strides,
etc), which is now an opaque C object, to Scheme. Then we could do lots of
stuff without having to rebuild Guile, take advantage of compiler
optimizations, etc. But even that isn't in the cards for 2.2. At least I don't
think anyone is working on it.
- Re: name an array function, (continued)
- Re: name an array function, Stefan Israelsson Tampe, 2016/11/21
- Re: name an array function, tomas, 2016/11/21
- Re: name an array function, Daniel Llorens, 2016/11/21
- Re: name an array function, tomas, 2016/11/21
- Re: name an array function, Daniel Llorens, 2016/11/21
- Re: name an array function, tomas, 2016/11/21
- Re: name an array function, Daniel Llorens, 2016/11/23
- Re: name an array function, tomas, 2016/11/23
- Re: name an array function, David Pirotte, 2016/11/23
Re: name an array function, Panicz Maciej Godek, 2016/11/21
- Re: name an array function,
Daniel Llorens <=