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From: Jerry <lanceboyle@qwest.net>
Newsgroups: comp.lang.ada
Subject: How to check a Float for NaN
Date: Wed, 30 Apr 2008 03:27:51 -0700 (PDT)
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Date: 2008-04-30T03:27:51-07:00
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How would one check a Float or Long_Float if it has value NaN? The
only ways that I can come up with are to import a C function (isnan, I
think) or to write Long_Float'image(Some_Float) to a string and
examine the first three characters to see if they are "NaN" (and that
seems to be a GNAT implementation choice so might not be portable,
which is OK for my use).

Jerry