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Date: Wed, 2 Sep 2009 06:58:58 +0000 (GMT)
From: Marco Atzeri <marco_atzeri AT yahoo DOT it>
Subject: Re: std::arg() bug : not repetitive ?
To: cygwin AT cygwin DOT com, Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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--- Mer 2/9/09, Dave Korn  ha scritto:
=20
> =A0 Bah.=A0 Still, at least the -ffloat-store
> workaround still helps, for this
> case at any rate..=A0 Also, if you get GCC to use SSE
> instructions, there's no
> issue with excess precision:
>=20
> > $ g++-4 comp_2.cc -o0 -o comp_2 -I
> /usr/include/octave-3.2.0/octave -march=3Dpent
> > ium4 -msse -mfpmath=3Dsse
> >=20
> > $ ./comp_2.exe
> > 0.785398
> > 0.785398
> > 0
> > 0
> >=20
> > $

Are this setting acceptable for a cygwin package ?

-march=3Dpentium4 -msse -mfpmath=3Dsse



>=20
> =A0 However it does look like it's not going to get
> fully fixed for C++ until
> someone with some serious language-lawyering skills can
> spend some time
> defining the exact semantics.

Not me. ;-(

>=20
> =A0 =A0 cheers,
> =A0 =A0 =A0 DaveK
>=20






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