bin/53870: C++ undeclares standard math functions like isinf()

[Michael van Elst]

The following reply was made to PR bin/53870; it has been noted by GNATS.

From: Michael van Elst <mlelstv at dev.de.cw.net>
To: Artem 'Zazoobr' Ignatjev <timon at memphis.mephi.ru>
Cc: FreeBSD-gnats-submit at freebsd.org
Subject: Re: bin/53870: C++ undeclares standard math functions like isinf()
Date: Sat, 28 Jun 2003 13:10:08 +0200

 On Sat, Jun 28, 2003, Artem 'Zazoobr' Ignatjev wrote:
 
 > > #include <cmath>
 > Add:
 > using namespace std;
 
 Thanks, this helps. Can you explain why this is necessary for isinf()
 but not for functions like sin() ?
 
 The only difference seems to be that isinf() happens to implemented as
 a macro (it used to be a function in FreeBSD4).
 
 Greetings,
 -- 
     ,eM""=.            a"-.                         Michael van Elst
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