public inbox for gcc@gcc.gnu.org
 help / color / mirror / Atom feed
From: Andreas Schwab <schwab@suse.de>
To: David Brown <david.brown@hesbynett.no>
Cc: Martin Uecker <uecker@tugraz.at>,  gcc@gcc.gnu.org
Subject: Re: aliasing
Date: Mon, 18 Mar 2024 14:54:12 +0100	[thread overview]
Message-ID: <mvma5mvk5mj.fsf@suse.de> (raw)
In-Reply-To: <6bff9afd-3e84-4260-9d05-8faec5f3ebe2@hesbynett.no> (David Brown's message of "Mon, 18 Mar 2024 14:29:15 +0100")

On Mär 18 2024, David Brown wrote:

> I think it would be possible to have an implementation where "signed
> char" was 8-bit two's complement except that 0x80 would be a trap
> representation rather than -128.

signed char cannot have padding bits, thus it cannot have a trap
representation.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

  reply	other threads:[~2024-03-18 13:54 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-18  7:03 aliasing Martin Uecker
2024-03-18  8:26 ` aliasing Richard Biener
2024-03-18 10:55   ` aliasing Martin Uecker
2024-03-18 11:56     ` aliasing Martin Uecker
2024-03-18 13:21       ` aliasing Richard Biener
2024-03-18 15:13         ` aliasing Martin Uecker
2024-03-18  9:00 ` aliasing David Brown
2024-03-18 10:09   ` aliasing Jonathan Wakely
2024-03-18 11:41   ` aliasing Martin Uecker
2024-03-18 13:29     ` aliasing David Brown
2024-03-18 13:54       ` Andreas Schwab [this message]
2024-03-18 16:46         ` aliasing David Brown
2024-03-18 16:55           ` aliasing David Brown
2024-03-18 15:00       ` aliasing Martin Uecker
2024-03-18 17:11         ` aliasing David Brown
  -- strict thread matches above, loose matches on Subject: below --
1999-08-21  9:23 aliasing Jason Moxham
1999-08-21  9:46 ` aliasing Mark Mitchell
1999-08-31 23:20   ` aliasing Mark Mitchell
1999-08-31 23:20 ` aliasing Jason Moxham

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=mvma5mvk5mj.fsf@suse.de \
    --to=schwab@suse.de \
    --cc=david.brown@hesbynett.no \
    --cc=gcc@gcc.gnu.org \
    --cc=uecker@tugraz.at \
    /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.
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 read-only IMAP folder(s) and NNTP newsgroup(s).