public inbox for gdb@sourceware.org
 help / color / mirror / Atom feed
From: Andreas Schwab <schwab@suse.de>
To: ramana.radhakrishnan@codito.com
Cc: gdb@sources.redhat.com
Subject: Re: Query regarding expression evaluation.
Date: Wed, 10 Aug 2005 15:44:00 -0000	[thread overview]
Message-ID: <jer7d123vi.fsf@sykes.suse.de> (raw)
In-Reply-To: <1123684979.29036.21.camel@localhost.localdomain> (Ramana Radhakrishnan's message of "Wed, 10 Aug 2005 20:12:59 +0530")

Ramana Radhakrishnan <ramana.radhakrishnan@codito.com> writes:

> Look at PR1978 . The discrepancy is because in valarith.c , GDB takes
> the operation to be unsigned depending only on the operand types. In the
> case described in the PR this seems alright with respect to the C
> standard since the result is implementation dependent. 

For the shift operator the result is completely independent of the type of
the right operand.  So the way gdb evaluates the expression is clearly
wrong.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

  reply	other threads:[~2005-08-10 15:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-10 14:49 Ramana Radhakrishnan
2005-08-10 15:44 ` Andreas Schwab [this message]
2005-08-11 10:10 ` Andreas Schwab
2005-08-11 13:21   ` Daniel Jacobowitz

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=jer7d123vi.fsf@sykes.suse.de \
    --to=schwab@suse.de \
    --cc=gdb@sources.redhat.com \
    --cc=ramana.radhakrishnan@codito.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. 
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).