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iset-search implementations Wolfgang Corcoran-Mathe (08 Dec 2020 20:00 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (08 Dec 2020 20:18 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (09 Dec 2020 18:07 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (10 Dec 2020 12:00 UTC)
Re: iset-search implementations Arthur A. Gleckler (10 Dec 2020 16:40 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (10 Dec 2020 16:50 UTC)
Re: iset-search implementations Arthur A. Gleckler (10 Dec 2020 16:51 UTC)
Re: iset-search implementations John Cowan (11 Dec 2020 02:23 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (11 Dec 2020 02:47 UTC)
Re: iset-search implementations John Cowan (11 Dec 2020 03:04 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (11 Dec 2020 18:41 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (12 Dec 2020 10:59 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (14 Dec 2020 17:44 UTC)
Re: iset-search implementations John Cowan (16 Dec 2020 15:34 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (16 Dec 2020 15:42 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (31 Dec 2020 18:23 UTC)
Re: iset-search implementations John Cowan (07 Jan 2021 21:42 UTC)
Re: iset-search implementations Arthur A. Gleckler (08 Jan 2021 04:39 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (08 Jan 2021 13:31 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (08 Jan 2021 23:47 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (09 Jan 2021 13:28 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (10 Jan 2021 23:35 UTC)
Re: iset-search implementations Arthur A. Gleckler (11 Jan 2021 00:04 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (11 Jan 2021 06:33 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (11 Jan 2021 00:27 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (12 Jan 2021 14:34 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (12 Jan 2021 18:55 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (18 Jan 2021 09:13 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (19 Jan 2021 18:54 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (20 Jan 2021 10:53 UTC)
Re: iset-search implementations Wolfgang Corcoran-Mathe (21 Jan 2021 20:31 UTC)
Re: iset-search implementations Marc Nieper-Wißkirchen (11 Dec 2020 08:40 UTC)

Re: iset-search implementations Marc Nieper-Wißkirchen 10 Dec 2020 16:50 UTC

Am Do., 10. Dez. 2020 um 17:40 Uhr schrieb Arthur A. Gleckler
<xxxxxx@speechcode.com>:
>
> On Thu, Dec 10, 2020 at 4:00 AM Marc Nieper-Wißkirchen <xxxxxx@nieper-wisskirchen.de> wrote:
>
>>
>> Indeed, `mapping-search` is affected because I never thought about
>> using a non-equivalent `new-key` when I wrote that code. Of course, it
>> can be fixed by special-casing that case, but it would be better to
>> add an erratum to SRFI 146 saying that `new-key` has to be equivalent
>> to `key` in the sense of the comparator. This is what has always been
>> the intended use anyway.
>
>
> That's an API change, but if it was always what was intended, I suppose it can be added as an erratum.  But what was the point of providing that argument if it wasn't to allow changing the key?

(1) As the sample implementation has never worked with the
unintendedly overly general current spec, I have a good feeling about
this erratum. Apparently, no one has yet exploited what I would like
to restrict.

(2) The key is allowed to be changed. However, the change must be
compatible with the equivalence relation defined by the comparator
used for the mapping. This is needed, for example, to implement
`mapping-set` (as opposed to `mapping-adjoin`).

Marc