NodeHandle namespaces
This is just an question about a very specific corner-case of the NodeHandle API, that is not covered by its documentation. I have no bug for you to solve or anything, I just need to know whether the scenario I'm describing in a second is possible, for my Master Thesis.
So, in this C++ code snippet
using namespace ros;
...
NodeHandle nh("outer_namespace/inner_namespace");
a NodeHandle is specifying a nested namespace in its constructor. Does outer_namespace have to exist before nh is constructed, or will it be created on the spot? In other words, can NodHandle define a hierarchy of namespaces, or should all but the rightmost namespace exist at creation time?
Basically, does NodeHandle nh("outer_namespace/inner_namespace"); behave like the UNIX command mkdir outer_namespace/inner_namespace or like mkdir -p outer_namespace/inner_namespace?
