From: Andreas Schwab <schwab@suse.de>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Pointer to function has a bad value
Date: Thu, 08 Mar 2001 10:39:07 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005266@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005265@msgid-missing>
"Robboy, David G" <david.g.robboy@intel.com> writes:
|> Is this a known bug or fixed in a later compiler? Using gcc version
|> 2.9-ia64-000216-final, assigning the address of a function to a pointer
|> gives the wrong value. In the following program, the address of twiddle is
|> 0x40000000000003f0, but the value of the pointer i is 0x4000000000078300.
This is correct. The conversion from pointer to integer is implementation
defined, the only requirement is that if the integer type is wide enough
you'll get the same pointer when casting back to the original pointer
type.
Andreas.
--
Andreas Schwab "And now for something
SuSE Labs completely different."
Andreas.Schwab@suse.de
SuSE GmbH, Schanzäckerstr. 10, D-90443 Nürnberg
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next prev parent reply other threads:[~2001-03-08 10:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-08 9:07 [Linux-ia64] Pointer to function has a bad value Robboy, David G
2001-03-08 10:39 ` Andreas Schwab [this message]
2001-03-08 11:25 ` Doug Rabson
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