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Date: Thu, 25 Apr 2002 11:24:35 -0400
From: Mark Mielke <mark@mark.mielke.cc>
To: "Richard B. Johnson" <root@chaos.analogic.com>
Cc: rpm <rajendra.mishra@timesys.com>,
        Jesse Pollard <pollard@tomcat.admin.navo.hpc.mil>, Nikita@Namesys.COM,
        Andrey Ulanov <drey@rt.mipt.ru>, linux-kernel@vger.kernel.org
Subject: Re: FPU, i386
Message-ID: <20020425112435.A16346@mark.mielke.cc>
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On Thu, Apr 25, 2002 at 10:22:49AM -0400, Richard B. Johnson wrote:
> To use the math macros, the comparison should be something like:
>         if (isless(fabs(a-b), 1.0e-38))
>              break;

I might be saying something stupid, but, I was under the impression
that floating point '==', assuming it follows IEEE rules, does exactly
this.

I know for certain that it does not do memcmp(), as it has to deal
with the exponent and mantissa being each off by +/-1 and <</>>1
respectively.

mark

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