I think this is NaD

These two sentences seem clear enough to me
https://eel.is/c++draft/lex.charset#8.sentence-1
https://eel.is/c++draft/lex.charset#9.sentence-6

On Mon, Jul 31, 2023 at 3:36 PM Tom Honermann via SG16 <
sg16_at_[hidden]> wrote:

> The suggested resolution for CWG 2779 (Restrictions on the ordinary
> literal encoding) <https://cplusplus.github.io/CWG/issues/2779.html>
> modifies [lex.charset]p8 <https://eel.is/c++draft/lex.charset#8> as
> follows:
>
> ... The *ordinary literal encoding* is the implementation-defined
> encoding applied to an ordinary character or string literal; its code
> unit values are required to be representable as distinct values of type signed
> char or unsigned char. The *wide literal encoding* is the
> implementation-defined encoding applied to a wide character or string
> literal; its code unit values are required to be representable as
> distinct values of type wchar_t.
>
> I am uncertain about the proposed "signed char or unsigned char" wording.
> I think the intent is to state that each code unit value must have a
> distinct representation in char regardless of its underlying type.
> However, the wording could be read as permitting (distinct) values in the
> range [SCHAR_MIN, UCHAR_MAX]. I think it would be simpler to restrict
> representation to char with an implicit reliance on [basic.fundamental]p6
> <http://eel.is/c++draft/basic.fundamental#6> for mapping code unit values
> from the signed char and unsigned char ranges to representable values in
> char.
>
> ... The *ordinary literal encoding* is the implementation-defined
> encoding applied to an ordinary character or string literal; its code
> unit values are required to be representable as distinct values of type signed
> char or unsigned char. The *wide literal encoding* is the
> implementation-defined encoding applied to a wide character or string
> literal; its code unit values are required to be representable as
> distinct values of type wchar_t.
>
> If desired, we could add a note to clarify the relationship to the signed
> char and unsigned char value ranges.
>
> Tom.
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