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Date: Wed, 6 Mar 2013 11:18:49 -0500
Message-Id: <201303061618.r26GInHv030063@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp-workers AT delorie DOT com
In-reply-to: <201303061339.r26DdHPq028840@dexter.ludd.ltu.se> (message from
	Martin Stromberg on Wed, 6 Mar 2013 14:39:16 +0100 (MET))
Subject: Re: Printing sign of NaN.
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> NaN is short for Not a Number. There is no sign.

Sure there is, it's just somewhat meaningless unless you're trying to
figure out how you got it.  The rules for preserving and modifying the
sign bit are predictable even if the magnitude of the number is not
representible.