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From: Thomas Koenig <tkoenig@netcologne.de>
To: Jakub Jelinek <jakub@redhat.com>
Cc: "Tobias Schlüter" <Tobias.Schlueter@physik.uni-muenchen.de>,
	gcc-patches@gcc.gnu.org, fortran@gcc.gnu.org,
	"Steve Kargl" <sgk@troutmask.apl.washington.edu>,
	"Feng Wang" <wf_cs@yahoo.com>,
	"Brooks Moses" <brooks.moses@codesourcery.com>
Subject: Re: [PATCH] Fold VIEW_CONVERT_EXPR <type, STRING_CST> generated by 	Fortran FE a lot (PR target/35366)
Date: Tue, 11 Nov 2008 21:27:00 -0000	[thread overview]
Message-ID: <1226436580.3443.3.camel@meiner.onlinehome.de> (raw)
In-Reply-To: <20081111174931.GG3572@tyan-ft48-01.lab.bos.redhat.com>

On Tue, 2008-11-11 at 18:49 +0100, Jakub Jelinek wrote:

> How is LOGICAL supposed to behave if it is storage associated with an
> integer?  Defined only if the integer stored has been 0 or 1, or 0 .false.
> and non-zero .true., or something else?

0 is .false., 1 is .true., anything else is undefined.

We already make use of this in the library.  For example, for mask
arguments, we only check the lower byte.



  parent reply	other threads:[~2008-11-11 20:50 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-11 13:27 Jakub Jelinek
2008-11-11 15:40 ` Richard Guenther
2008-11-11 15:53 ` Tobias Schlüter
2008-11-11 16:22   ` Jakub Jelinek
2008-11-11 16:26     ` Tobias Schlüter
2008-11-11 17:21       ` Jakub Jelinek
2008-11-11 17:22         ` Tobias Schlüter
2008-11-11 18:10           ` Jakub Jelinek
2008-11-11 19:07             ` Janne Blomqvist
2008-11-11 19:22             ` Brooks Moses
2008-11-11 19:36             ` Tobias Burnus
2008-11-11 20:50               ` Brooks Moses
2008-11-11 21:38                 ` Jakub Jelinek
2008-11-11 21:41                   ` Brooks Moses
2008-11-11 21:46                     ` Jakub Jelinek
2008-11-11 22:31                       ` Brooks Moses
2008-11-11 21:27             ` Thomas Koenig [this message]
2008-11-11 19:17       ` Brooks Moses
2008-11-11 19:34         ` Jakub Jelinek
2008-11-11 19:38           ` Brooks Moses
2008-11-11 17:30     ` Tobias Burnus
2008-11-11 16:22   ` Paul Richard Thomas
2008-11-11 16:45     ` Tobias Schlüter
2008-11-11 21:56   ` Steve Kargl
2008-11-11 22:53 Tobias Burnus
2008-11-12 14:20 ` Jakub Jelinek
2008-11-12 15:34   ` Paul Richard Thomas
2008-11-12 18:09   ` Feng Wang

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