From: Han-Wen Nienhuys <hanwen@cs.uu.nl>
Cc: Gary Houston <ghouston@arglist.com>, guile-devel@gnu.org
Subject: Re: gcc optimisation breaks guile floating point
Date: Thu, 29 Aug 2002 00:53:57 +0200 [thread overview]
Message-ID: <15725.21637.516981.623205@blauw.xs4all.nl> (raw)
In-Reply-To: <8765xuzq57.fsf@zagadka.ping.de>
mvo@zagadka.ping.de writes:
>
> This looks wierd as well, don't you think?
well, yes, probably.
> > *((unsigned long *) z) = 0;
> > scm_remember ((SCM) z);
> > *((double *) z) = x;
> > return z;
>
> I like this better (with a suitable comment of course).
In CVS.
> I guess that the funny aliasing behaviour applies only to pointers to
> floating point types, right?
I wouldn't be sure. It could happen with all sorts of initializations,
I guess, but I'm not familiar enough with the source code to see which
ones.
--
Han-Wen Nienhuys | hanwen@cs.uu.nl | http://www.cs.uu.nl/~hanwen
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next prev parent reply other threads:[~2002-08-28 22:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-27 21:10 gcc optimisation breaks guile floating point Gary Houston
2002-08-27 22:30 ` Han-Wen Nienhuys
2002-08-28 20:26 ` Marius Vollmer
2002-08-28 22:53 ` Han-Wen Nienhuys [this message]
2002-08-30 17:44 ` Gary Houston
2002-09-05 21:10 ` Han-Wen Nienhuys
2002-09-12 1:46 ` Carl R. Witty
2002-09-13 21:20 ` Han-Wen Nienhuys
2002-09-24 22:32 ` Gary Houston
[not found] ` <200209242233.PAA04201@onyx.he.net>
2002-10-02 22:40 ` Marius Vollmer
2002-10-02 23:34 ` Gary Houston
[not found] ` <200210022336.QAA18265@onyx.he.net>
2002-10-03 12:33 ` Marius Vollmer
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