How can I instant reverse three C++ classes with same name that are in different namespaces?

Hi,

I tested instant reverse with the following code but cannot produce the problem:

class C
{
private: int a;
};

namespace n1 {
class C
{
private: int b;
};
}

namespace n2 {
class C
{
private: int c;
};
}

Class%20Diagram1

Could you please provide some sample code?