How do you import an enum into a different namespace in C++?

Question

I have an enum in a namespace and I\'d like to use it as if it were in a different namespace. Intuitively, I figured I could use \'using\' or \'typedef\' to accomplish this,

Answer 1

Starting from C++11 you can use enum class. Importing enum class imports all its values:

namespace foo
{

enum class bar {
    A
};

}

namespace buzz
{
using foo::bar;
}

int main()
{
    foo::bar f;
    foo::bar g = foo::bar::A;

    buzz::bar x;
    buzz::bar y = buzz::bar::A;
    buzz::bar z = foo::bar::A;
}

The code above successfully compiles: http://coliru.stacked-crooked.com/a/2119348acb75d270.