From: Rich Felker <dalias@libc.org>
To: "Jₑₙₛ Gustedt" <jens.gustedt@inria.fr>
Cc: musl@lists.openwall.com
Subject: Re: [musl] [C23 128 bit 4/4] C23: implement proper support for int128_t and uint128_t
Date: Wed, 31 May 2023 10:57:24 -0400 [thread overview]
Message-ID: <20230531145724.GF4163@brightrain.aerifal.cx> (raw)
In-Reply-To: <20230531165545.29eb823f@inria.fr>
On Wed, May 31, 2023 at 04:55:45PM +0200, Jₑₙₛ Gustedt wrote:
> Rich,
>
> on Wed, 31 May 2023 10:41:29 -0400 you (Rich Felker <dalias@libc.org>)
> wrote:
>
> > On Wed, May 31, 2023 at 04:36:43PM +0200, Jₑₙₛ Gustedt wrote:
> > > Rich,
> > >
> > > on Wed, 31 May 2023 10:27:44 -0400 you (Rich Felker
> > > <dalias@libc.org>) wrote:
> > >
> > > > Unless the rules in C23 changed,
> > >
> > > They did change, this is what this is all about.
> >
> > Can you cite that?
>
> sure, almost by heart, since I wrote that ;-)
>
> … with the possible exceptions of signed bit-precise integer types
> and of signed extended integer types that are wider than `long long`
> and that are referred by the type definition for an exact width
> integer type
>
> > Because I don't see it. I still see that intmax_t
> > has to be at least as wide as all the intN_t.
>
> I seems that you read that the wrong way around.
OK, so AIUI based on this exception it's permitted but not required to
offer int128_t.
Rich
next prev parent reply other threads:[~2023-05-31 14:57 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-31 14:15 [musl] [C23 128 bit 0/4] implement the library part of 128 bit support Jens Gustedt
2023-05-31 14:15 ` [musl] [C23 128 bit 1/4] add an emulation for 128 bit arithmetic as needed for C library support Jens Gustedt
2023-05-31 14:15 ` [musl] [C23 128 bit 2/4] C23: implement w128 and wf128 support for printf Jens Gustedt
2023-05-31 14:15 ` [musl] [C23 128 bit 3/4] C23: implement w128 and wf128 for scanf and similar Jens Gustedt
2023-05-31 14:15 ` [musl] [C23 128 bit 4/4] C23: implement proper support for int128_t and uint128_t Jens Gustedt
2023-05-31 14:27 ` Rich Felker
2023-05-31 14:29 ` Rich Felker
2023-05-31 14:36 ` Jₑₙₛ Gustedt
2023-05-31 14:41 ` Rich Felker
2023-05-31 14:55 ` Jₑₙₛ Gustedt
2023-05-31 14:57 ` Rich Felker [this message]
2023-05-31 15:07 ` Jₑₙₛ Gustedt
2023-05-31 15:14 ` Rich Felker
2023-05-31 15:37 ` Jₑₙₛ Gustedt
2023-05-31 15:40 ` Rich Felker
2023-05-31 15:56 ` Jₑₙₛ Gustedt
2023-05-31 16:30 ` Alexander Monakov
2023-05-31 16:58 ` Jens Gustedt
2023-05-31 17:03 ` Rich Felker
2023-05-31 17:09 ` Alexander Monakov
2023-06-01 7:24 ` Jₑₙₛ Gustedt
2023-05-31 14:42 ` Jₑₙₛ Gustedt
2023-05-31 14:47 ` Rich Felker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230531145724.GF4163@brightrain.aerifal.cx \
--to=dalias@libc.org \
--cc=jens.gustedt@inria.fr \
--cc=musl@lists.openwall.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).