How to get string for current namespace in Macro

Question

I need to put namespace prefix in macros. I.e.

#define MYMACRO(x) ....##x

namespace A {
  namespace B {
    MYMACRO(C);
  }
}

and MYMACRO must return - A::B::C?

duplicate? http://stackoverflow.com/questions/9124856/macro-to-obtain-current-namespace-and-function-name-but-not-full-signature — Daniele, Feb 14 '14 at 10:01

score 6 · Accepted Answer · answered Feb 14 '14 at 10:04

6

Can't work. Namespaces are recognized by the compiler, which runs only after the preprocessor.

answered Feb 14 '14 at 10:04

MSalters

1

That's the right answer. And it might lead to a solution: If you need something to be seen by the preprocessor, put it there. Before namespace A, put a #define OUTERNAMESPACE A, before B define INNERNAMESPACE B. How that would be better than just writing it manually I don't know. – starmole Feb 14 '14 at 10:13
@starmole: Well, it would be called "writing it manually twice" :) – Lightness Races in Orbit Feb 14 '14 at 10:21

1 Answers1