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Re: The perennial i386 floating-point rounding issue...
- From: Stan Shebs <shebs at apple dot com>
- To: Stephen L Moshier <steve at moshier dot net>
- Cc: mike stump <mrs at windriver dot com>, gcc at gcc dot gnu dot org, zack at codesourcery dot com
- Date: Mon, 10 Jun 2002 17:22:15 -0700
- Subject: Re: The perennial i386 floating-point rounding issue...
- Organization: Apple Computer, Inc.
- References: <Pine.LNX.firstname.lastname@example.org>
Stephen L Moshier wrote:
> > Or, maybe we are just required to recommend the user set the 64 bit
> > rounding mode thang?
> Or maybe we should offer a way to set it ourselves.
> Some years ago one of the Next people implemented a way for gcc to
> keep track of the fpu precision setting. I don't know how well it worked
> then or how practical it would be now, but I think many users would
> be happier if double meant double and long double meant long double.
You mean the -ffppc flag? It's still around in Apple's 2.95 hacks,
but so far nobody has wanted to try rewriting it for 3.1 (nor has
anybody asked for it - let sleeping dogs lie :-) ).