Date: Tue, 18 Mar 2003 14:31:11 +0200
From: "Eli Zaretskii" <eliz AT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: djgpp-workers AT delorie DOT com
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In-reply-to: <200303181210.NAA03843@lws256.lu.erisoft.se> (message from Martin
	Stromberg on Tue, 18 Mar 2003 13:10:15 +0100 (MET))
Subject: Re: isnan and isinf
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> From: Martin Stromberg <Martin DOT Stromberg AT epl DOT ericsson DOT se>
> Date: Tue, 18 Mar 2003 13:10:15 +0100 (MET)
> 
> But how would you access the bits directly?

Just do it:

     double foo;
     ...
     if ((foo & 0x7ffffffffffffffffL) != 0)
       do_something;

I think this should DTRT (GCC will generate the necessary machine
code).  If not, you could say something like

     if (((*(long long *)&foo) & 0x7ffffffffffffffffL) != 0)

instead.