link to C++ function in a namespace whose name is a D keyword

[Carl Sturtivant via Digitalmars-d-learn]

Hello,

 From D I want to call e.g.

/* C++ prototype */
namespace ns {
     int try(int x);
}

without writing a C or C++ wrapper.

Presumably the following D doesn't work, because it doesn't 
mangle the name as if it's in the namespace ns.

pragma(mangle, "try") extern(C++, ns) int try_(int x);

So how to I get correct mangling here?