From: Jason Merrill <jason@redhat.com>
To: Ben Boeckel <ben.boeckel@kitware.com>
Cc: Ben Boeckel <me@benboeckel.net>,
gcc-patches@gcc.gnu.org, nathan@acm.org, fortran@gcc.gnu.org,
gcc@gcc.gnu.org, brad.king@kitware.com
Subject: Re: [PATCH RESEND 1/1] p1689r5: initial support
Date: Thu, 20 Oct 2022 14:22:03 -0400 [thread overview]
Message-ID: <befadceb-2ab1-ddf8-d3a3-2549e4e2c123@redhat.com> (raw)
In-Reply-To: <Y1GF/8R6IoT/BECO@megas.dev.benboeckel.internal>
On 10/20/22 13:31, Ben Boeckel wrote:
> On Thu, Oct 20, 2022 at 11:39:25 -0400, Jason Merrill wrote:
>> Oops, I was thinking this was in gcc as well. In libcpp there's
>> _cpp_valid_utf8 (which calls one_utf8_to_cppchar).
>
> This routine has a lot more logic (including UCN decoding) and the
> `one_utf8_to_cppchar` also supports out-of-bounds codepoints above
> `0x10FFFF`.
The latter seems like a bug to be fixed; presumably it hasn't been
updated since the range of codepoints was restricted. This sort of
thing is why I'd like to minimize the number of separate implementations
of UTF-8 parsing.
Jason
next prev parent reply other threads:[~2022-10-20 18:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 15:11 [PATCH RESEND 0/1] RFC: P1689R5 support Ben Boeckel
2022-10-04 15:12 ` [PATCH RESEND 1/1] p1689r5: initial support Ben Boeckel
2022-10-04 19:12 ` Harald Anlauf
2022-10-11 11:30 ` Ben Boeckel
2022-10-10 21:04 ` Jason Merrill
2022-10-11 11:42 ` Ben Boeckel
2022-10-18 12:18 ` Ben Boeckel
2022-10-20 15:39 ` Jason Merrill
2022-10-20 17:31 ` Ben Boeckel
2022-10-20 18:22 ` Jason Merrill [this message]
2022-10-10 20:21 ` [PATCH RESEND 0/1] RFC: P1689R5 support Jason Merrill
2022-10-13 17:08 ` David Malcolm
2022-10-18 12:22 ` Ben Boeckel
2022-10-19 7:21 ` Martin Liška
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