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Date: Fri, 05 Aug 2005 17:15:33 +0400
From: Denis Antrushin <DAntrushin@mail.ru>
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To: Steve Kargl <sgk@troutmask.apl.washington.edu>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Number of significand bits in long double?
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Steve Kargl wrote:
> Can someone confirm or refute that the working number
> of bits in the significand of long double type is 53
> on i386?
> 

Yes, this is what IEEE 754 requires.
(See http://docs.sun.com/source/806-3568/ncg_goldberg.html,
section 'The IEEE Standard')