Date: Sun, 10 Aug 2003 19:12:06 -0400
Message-Id: <200308102312.h7ANC6mQ021365@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp-workers AT delorie DOT com
In-reply-to: <9003-Sun10Aug2003222306+0300-eliz@elta.co.il>
Subject: Re: Anomaly in printf()
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> Is it?  We are printing a long double, which IIRC has 19 significant
> digits.  The ``error'' here happens in the 20th digit, unless I'm
> mistaken.

Long doubles have 64 bits of mantissa, with a separate sign.  We
should have no problems representing, and thus printing, 2**64-2.

The fact that Linux can get it right means that the format can
represent the numbers just fine.