From: tomas@tuxteam.de
To: Daniel Llorens <daniel.llorens@bluewin.ch>
Cc: guile-user@gnu.org
Subject: Re: name an array function
Date: Wed, 23 Nov 2016 21:32:33 +0100 [thread overview]
Message-ID: <20161123203233.GA11850@tuxteam.de> (raw)
In-Reply-To: <F41AF455-D1B8-4D68-930B-E325B9031464@bluewin.ch>
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On Wed, Nov 23, 2016 at 05:07:30PM +0100, Daniel Llorens wrote:
>
> On 21 Nov 2016, at 14:56, tomas@tuxteam.de wrote:
>
> > I (politely) disagree: the most "commonly" used function is
> > already array-ref, so you would seldomly use array-from/slice
> > for a scalar result (the rank-0 result will be more frequent,
> > because there's no substitute). But hey, as I said.
>
> I don't use array-ref/set! anymore since array-from/amend! generalize them. I actually use a further generalization in a separate library :p
>
> But I have a proposal below that makes this discussion moot, I hope.
>
> | master (current) | meaning | proposal |
> |---------------------+----------------------------------+----------------------|
> | array-from* | look up subarray, even #0(x) | array-slice |
> | array-from | look up cell, so x and not #0(x) | array-cell-ref |
> | array-amend! | set cell | array-cell-set! |
> | array-for-each-cell | iterate over subarrays | array-for-each-slice |
>
> We define a k-cell to be a (prefix) k-subarray except that the 0-cells are x instead of #0(x). This is also consistent with the APL/J terminology (there are no rank 0 arrays in APL/J that are different from a simple element).
>
> (array-for-each-cell) however must iterate over k-subarrays (not k-cells) so that they can be used as write targets. Then it makes sense to change this name to (array-for-each-slice), and all the names are consistent.
>
> What do you think?
This looks awesome to me. Very readable!
thanks
- -- tomás
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next prev parent reply other threads:[~2016-11-23 20:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-21 10:32 name an array function Daniel Llorens
2016-11-21 12:37 ` Stefan Israelsson Tampe
2016-11-21 12:55 ` tomas
2016-11-21 13:10 ` Daniel Llorens
2016-11-21 13:24 ` tomas
2016-11-21 13:42 ` Daniel Llorens
2016-11-21 13:56 ` tomas
2016-11-23 16:07 ` Daniel Llorens
2016-11-23 20:32 ` tomas [this message]
2016-11-23 20:48 ` David Pirotte
2016-12-15 11:12 ` Daniel Llorens
2016-12-15 11:30 ` tomas
2016-11-21 14:01 ` Panicz Maciej Godek
2016-11-21 14:38 ` Daniel Llorens
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