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From: Andrew Gallatin <gallatin@cs.duke.edu>
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Date: Fri, 21 Dec 2001 10:28:54 -0500 (EST)
To: Bernd Walter <ticso@cicely9.cicely.de>
Cc: freebsd-alpha@FreeBSD.ORG
Subject: Re: floating point exception masks?
In-Reply-To: <20011221151906.GA97006@cicely9.cicely.de>
References: <20011221151906.GA97006@cicely9.cicely.de>
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You want #include <ieeefp.h> -- that works on i386 & alpha.
BTW, FP_X_DNML isn't defined on alpha.

I posted some patches to freebsd-alpha on Tue Nov 27 11:07:15 to get
Mozilla to build, but I never got it working -- it kept dying in
Javascript.   Perhaps your thread fixes will cure this.  You might
want to pull my patches out of the mailing list archives.


Drew

Bernd Walter writes:
 > Mozilla uses them on FreeBSD, but they are not available on alpha.
 > 
 > Here is a code fragment from
 > work/mozilla/extensions/transformiix/source/base/Double.cpp:
 > 
 > #include "primitives.h"
 > #include  <math.h>
 > #ifdef WIN32
 > #include <float.h>
 > #endif
 > //A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
 > #ifdef __FreeBSD__
 > #include <floatingpoint.h>
 > #endif
 > #ifndef TX_EXE
 > #include "prdtoa.h"
 > #else
 > #include "stdlib.h"
 > #include "stdio.h"
 > #endif
 > 
 > /*
 >  * Utility class for doubles
 >  */
 > 
 > //A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
 > #ifdef __FreeBSD__
 > fp_except_t allmask = FP_X_INV|FP_X_OFL|FP_X_UFL|FP_X_DZ|FP_X_IMP|FP_X_DNML;
 > fp_except_t oldmask = fpsetmask(~allmask);
 > #endif
 > 
 > 
 > I have no clue about floating point miracles.
 > Are these expected implementations?
 > 
 > -- 
 > B.Walter              COSMO-Project         http://www.cosmo-project.de
 > ticso@cicely.de         Usergroup           info@cosmo-project.de
 > 
 > 
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