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Re: [wg14/wg21 liaison] Type of u8"" array elements are 'char', but u8'' is 'unsigned char' ?

From: Tom Honermann <tom_at_[hidden]>
Date: Mon, 28 Feb 2022 20:49:03 -0500
Steve, yes, this inconsistency was deliberate; see N2418
<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2418.pdf> (the paper
that proposed u8 character literals for C2X). The choice was made
anticipating a char8_t type as then proposed by N2231
<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2231.htm>. As Robert
already noted, the adoption of N2653
<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2653.htm> at the last
WG14 meeting resolves the inconsistency.


On 2/28/22 3:39 PM, Robert Seacord via Liaison wrote:
> If I remember correctly, we voted this paper
> http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2653.htm into C23 at
> the last meeting so you probably want to refer to this as it changes
> things.
> Thanks,
> rCs
> On Mon, Feb 28, 2022 at 3:29 PM Steve Downey via Liaison
> <liaison_at_[hidden]> wrote:
> Looking at N 2731
> http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2731.pdf to see
> how conversion from source encoding to u8 literal is handled, I
> notice that 6.4.5 String Literals para 6 says "For UTF–8 string
> literals, the array elements have type char", although in
> Character Constants para 12 it says "A UTF–8 character constant
> has type unsigned char."
> Is the inconsistency a bug or deliberate?
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Received on 2022-03-01 01:49:06