Re: %prefix with C++ namespaces

[Akim Demaille]

Le 2 oct. 07 à 19:55, Joel E. Denny a écrit :

> On Tue, 2 Oct 2007, Hans Aberg wrote:
>
> > > > I do not think the leading "::"-issue is very important - but it  
> > > > would be
> > > > nice
> > > > showing one has given thought to it. :-)
> > >
> > > So, I'm seeing no reason to disallow it.  If the user wants absolute
> > > references, he should probably get absolute references.
> >
> > It is OK with me whatever you do. Admitting a leading "::", and  
> > merely
> > stripping it out in the "namespace" nesting seems fine.
>
> Given this comment and given our discussion about how wrapping  
> parser.cc
> in a namespace probably won't ever work, I think we agree that the  
> leading
> "::" is redundant where Bison uses the user-supplied namespace to  
> generate
> a namespace declaration.  That is, the outermost namespace is  
> always the
> global namespace.

Yes.  For a start, I know how to request a symbol starting from the
root name space, but I doubt there is a means to *put* something
starting from the top level namespace.  If, as in one of your
scenarios, we are enclosed in nested "namespace foo { ... }", afaik,
we can't use "namespace ::bar { ... }" to escape them.

Or maybe I have missed something in the thread?

I would just strip it.