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Date: Sun, 26 Oct 2003 19:19:08 +0200
From: "Eli Zaretskii" <eliz AT elta DOT co DOT il>
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To: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
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In-reply-to: <3F9BB1FE.43B877E9@phekda.freeserve.co.uk> (message from Richard
	Dawe on Sun, 26 Oct 2003 11:37:34 +0000)
Subject: Re: Clash between math.h and ieeefp.h [PATCH]
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> Date: Sun, 26 Oct 2003 11:37:34 +0000
> From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
> > 
> > I'm probably missing something here: why does ieeefp.h declare those
> > functions, and where/when is ieeefp.h supposed to be used?
> 
> As far as I can tell, it's for libm and the test suite.

If ieeefp.h is only for libm, and is not mandated by any standard we
want to follow nor is present on other platforms, then any solution
that is the easiest for you will do.

> > Isn't the following trick enough to solve the problem?
> > 
> >   extern int (isnan)(double);
> > 
> > That is, surround the function's name with parens.
> 
> Yes, that works.

If isnan is supposed to be a function as well as a macro (not unlike
the ctype macros) and is described like that by some standard, then we
will need this trick anyway.