A question from the truly dumb?

[William Case]

On Fri, 2011-05-27 at 11:44 -0400, nathan forbes wrote:
> 
> On May 27, 2011 11:34 AM, "William Case" <billlinux at rogers.com> wrote:
> >
> > Hi,
> >
> > More and more I have noticed the use of a double colon [::]in coding
> > explanations but have not noticed it actually used anywhere.  Does
> it
> > mean anything other than being used as a format.
> >
> > For example, in a recent repo description:
> >
> >        perl-DateTime-Format-Natural
> >        Description :
> >        DateTime::Format::Natural takes a string with a human
> readable
> >        date/time and creates a machine readable one by applying
> natural
> >        parsing logic.
> >
> > rsync uses the :: in its a man pages.  There it seems to indicate a
> > remote machine, but doesn't seem to be required.
> >
> > Just something I have been meaning to ask for a long time.
> >
> > --
> > Regards Bill
> > Fedora 14, Gnome 2.32
> > Evo.2.32, Emacs 23.2.1
> >
> > --
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> 
> Well Perl and C++ use it as part of their syntax. In your example, the
> module DateTime contains Format which contains Natural. So the full
> name of Natural would be DateTime::Format::Natural.
> 
> And in C++ it's used to display the scope of namespaces and classes,
> and so on. For example if you had something like:
> 
> namespace example {
>     class Hello {
>         static int myMethod();
>     }
> }
> 
> In order to call myMethod() you would do example::Hello::myMethod().
> 
Thanks Nathan.  Have played around with C but never C++ or Perl, so that
explains my ignorance.  Tried checking online.  Google got confused.

-- 
Regards Bill
Fedora 14, Gnome 2.32
Evo.2.32, Emacs 23.2.1