Question

I have a library in a codebase with something like the following:

namespace rat {

   ...

   enum myEnum {
      BLUE,
      RED
   }

   ...
} //namespace rat

later on I try to compile an app in the codebase using the library before and it warns me of an ambiguity when i use namespace rat (the codebase main namespace) saying that BLUE could either be rat::myEnum rat::BLUE or rat::enums::Freq rat::enums::BLUE from some other file I’m not familiar with (and isn’t mine) that has an enum Freq with a guy called BLUE in namespace enums within namespace rat…

Is there a way in the user code to say which one I want at the moment? Or do i have to nest mylibs enum in say namespace mylib and then say either rat::enums::BLUE or rat::mylib::BLUE ?

Answer 1

The full unambiguous name of the enum constants will be ::rat::BLUE, ::rat::enums::BLUE, etc.

Remember that the :: at the beginning of the expression stands for the global namespace.