extern(C++, ns)

[Ola Fosheim Grøstad via Digitalmars-d]

On Wednesday, 13 January 2016 at 09:11:43 UTC, Martin Drašar 
wrote:
> I am with Manu on this one. Introducing scoping to C++ 
> namespaces is a design mistake, because it fails to deliver on 
> its promise to emulate true C++ namespaces.

Next version of C++ will probably allow this:

namespace a::b::c::d::e {
    ...
}