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From: Simon Shapiro <shimon@nomis-storage.com>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: c/7139: Shifting 1 through a 64bit int fails at 32bit line
Date: Mon, 01 Jul 2002 17:06:00 -0000 [thread overview]
Message-ID: <20020702000603.903.qmail@sources.redhat.com> (raw)
The following reply was made to PR c/7139; it has been noted by GNATS.
From: Simon Shapiro <shimon@nomis-storage.com>
To: Mark Mitchell <mark@codesourcery.com>
Cc: Simon Shapiro <shimon@nomis-storage.com>, mmitchel@gcc.gnu.org <mmitchel@gcc.gnu.org>, gcc-bugs@gcc.gnu.org <gcc-bugs@gcc.gnu.org>, gcc-prs@gcc.gnu.org <gcc-prs@gcc.gnu.org>, nobody@gcc.gnu.org <nobody@gcc.gnu.org>, shimon@simon-shapiro.com <shSubject: Re: c/7139: Shifting 1 through a 64bit int fails at 32bit line
Date: Mon, 01 Jul 2002 19:59:37 +0100
-------------------
>
>
> --On Thursday, June 27, 2002 06:26:25 PM +0100 Simon Shapiro
> <shimon@nomis-storage.com> wrote:
>
> > Thax for looking into this problem.
> >
> > However, I would like to suggest that you may have dismissed the
> > problem a bit too quickly.
>
> No, I understood it.
>
> You need to take a look at the C standard.
>
> If ints have 32 bits, (1 << 32) has undefined behavior.
Great! Thanx.
Simon
>
> --
> Mark Mitchell mark@codesourcery.com
> CodeSourcery, LLC http://www.codesourcery.com
>
Sincerely,
Simon Shapiro, CEO
Nomis Storage, Inc.
next reply other threads:[~2002-07-02 0:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-01 17:06 Simon Shapiro [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-06-27 15:56 Mark Mitchell
2002-06-27 15:36 Simon Shapiro
2002-06-27 15:12 mmitchel
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