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Subject: Re: Reminder: SG16 telecon tomorrow (Wednesday, 2020-06-10)
From: Hubert Tong (hubert.reinterpretcast_at_[hidden])
Date: 2020-06-10 14:01:50


On Wed, Jun 10, 2020 at 2:51 PM Tom Honermann <tom_at_[hidden]> wrote:

> On 6/10/20 1:28 PM, Hubert Tong wrote:
>
>
> This may be useful for an intermediate stage of the process of updating
> the wording:
>
> Basic source character set:
> set of abstract characters used for the description of source code for the
> purposes of this document
>
> I think the "basic source character set" fails to be a "character set". I
> believe the elements of a character set are mappings of values to abstract
> characters.
>
> I agree with your characterization of a "character set". But, the members
> of the "basic source character set" arguably have values on an
> implementation-defined basis. Per [cpp.cond]p12
> <http://eel.is/c++draft/cpp.cond#12>, the values of character literals
> used in a conditional preprocessing directive may have values different
> from their values in the execution character set; and if they don't
> correspond to the values of the basic source character set members, then I
> don't know what else they might correspond to. This may be indicative of
> the existence of an additional, currently unnamed, conditionally-defined
> character set.
>
Sounds like the last there, except we can simply go with
implementation-defined. If could happen to be the same as the execution
character set.



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