MESSAGE
| DATE | 2011-06-05 |
| FROM | Ruben Safir
|
| SUBJECT | Subject: [NYLXS - HANGOUT] (fwd) Re: Anonymous namespace
|
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Path: reader1.panix.com!panix!newsfeed-00.mathworks.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: Ian Collins
Newsgroups: comp.lang.c++
Subject: Re: Anonymous namespace
Date: Fri, 03 Jun 2011 20:12:15 +1200
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Message-ID: <94rjavFbjiU7-at-mid.individual.net>
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Xref: panix comp.lang.c++:1085958
On 06/ 3/11 06:29 PM, ruben safir wrote:
> On 06/02/2011 10:54 PM, Stefan Ram wrote:
>>>> What is the point of the anonymous namespace.
>> Names can be hidden from the linker (from other translation
>> units), even if they should have external linkage.
>
> please expand?
One way to look at the anonymous namespace is to consider it a namespace
with a cryptic name. That name is only known within the current
compilation unit. Thus anything declared within the namespace can't
been seen elsewhere because the namespace name is unknown.
So I could write
namespace { int n; }
and n would only be visible within the current compilation unit whereas
int n;
would be globally visible.
--
Ian Collins
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