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Article #3481

Re: #ifdef XXXX

#3481
From: Yves Arrouye
Date: Mon, 19 Feb 1996 01:33
30 lines
2101 bytes
In article <4fukhs$fc3@hermes.acs.unt.edu> johnw@jove.acs.unt.edu
(John R. Williams) writes:

   devitto@ferndown.ate.slb.com wrote:
   > What about Bjarne's idea of "include" as a keyword that only has the
   > effect of a #include if the file has not been "include"d already.

   > I suppose the idea is that the compiler builds a table (like gcc does for
   > wrapped includes) - pretty simple really.

   > Ideas about why this won't work ???

   Personally I'll continue to advocate "#once" to prevent multiple 
   inclusion of a header for these reasons:

So instead of adding yet another preprocessor directive, why not use
Objective C's #import which does exactly that? (I know this is also a
reason for *not* using it in order to make clear that the header file
is a C++ one, but I don't tjink it will be sooo confusing).

YA.
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Message-ID: <ARROUYE.96Feb18152057@marin.fdn.fr>
Path: arc1-ca.pugleaf.net!in2.uu.net!bounce-back
References: <1996Feb1.092058.4745@iiasa.ac.at> <9602020740.22411@mulga.cs.mu.OZ.AU> <9602141406.AA16760@sparc5.ferndown.ate.slb.com> <4fukhs$fc3@hermes.acs.unt.edu>

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From: arrouye@marin.fdn.fr (Yves Arrouye)
Message-ID: <ARROUYE.96Feb18152057@marin.fdn.fr>
X-Original-Date: 18 Feb 1996 14:20:57 GMT
Path: arc1-ca.pugleaf.net!in2.uu.net!bounce-back
Date: 19 Feb 96 01:33:41 GMT
Approved: fjh@cs.mu.oz.au
Newsgroups: comp.std.c++
Subject: Re: #ifdef XXXX
Organization: Personal site
References: <1996Feb1.092058.4745@iiasa.ac.at> <9602020740.22411@mulga.cs.mu.OZ.AU>
 <9602141406.AA16760@sparc5.ferndown.ate.slb.com>
 <4fukhs$fc3@hermes.acs.unt.edu>
In-Reply-To: johnw@jove.acs.unt.edu's message of 15 Feb 96 12:07:00 GMT
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