Question

This works in xcode, but not visual studio. The error is

error C2236: unexpected ‘enum’ ‘abc::def::`anonymous-namespace’::’. Did you forget a ‘;’?

I can’t figure out what is wrong.

namespace abc {
namespace def {

namespace {

long long enum {
  aaa = 1L,
  bbb = 2L,
};

}
}
}

Answer 1

That syntax is bizarre, I don’t see how it would work anywhere (EDIT: apparently it’s a GCC extension — thanks @PlasmaHH). This is the portable C++11 syntax you want:

enum : long long {
    aaa = 1LL,
    bbb = 2LL
};