interfacing c++ templates. Another c++-namespace issue?

[Walter Bright]

On 3/16/2018 11:57 AM, Markus wrote:
> It seems like dmd doesn't care about the namespace of the template.
> Can someone confirm this as a bug? or am I doing something terrible wrong? :)

Might check that this https://issues.dlang.org/show_bug.cgi?id=17772 is not the 
issue. See my comment in https://github.com/dlang/dmd/pull/7906 :

"Fixing the T_ mangling is much more problematic, I don't know how to do that 
yet. This namespace issue is independent, so it is convenient to do it separately."