MESSAGE
| DATE | 2011-06-05 |
| FROM | Ruben Safir
|
| SUBJECT | Subject: [NYLXS - HANGOUT] (fwd) Re: Anonymous namespace
|
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From: Ian Collins
Newsgroups: comp.lang.c++
Subject: Re: Anonymous namespace
Date: Fri, 03 Jun 2011 20:17:24 +1200
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Xref: panix comp.lang.c++:1085959
On 06/ 3/11 08:08 PM, gwowen wrote:
> On Jun 3, 3:54 am, r...-at-zedat.fu-berlin.de (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.
>
> Can someone give the benefits of external-but-unlinkable anon-
> namespace variables (or functions) against old-school internal linkage
> file-scope "static" variables and functions.
I guess the most common (at least in my case) use is to declare
different classes with a common name in multiple source files. I have
lots of instances of
namespace {
struct TestObject { .. };
}
in my unit test files.
--
Ian Collins
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