C++ & Templates

class CMessageInterface
{
public:
void operator << ( CMessage& rMessage )
{

}
};
[/code]

Kode 

#include <iostream>
template< class T >
class CMessage
{
public:
  CMessage<T>( T Data) : m_Data(Data) {}
  const T& GetData() const { return m_Data; }
private:
  T m_Data;
};

class CMessageInterface
{
public:
  template <typename T>
  void operator << ( CMessage<T>& rMessage )
  {
      std::cout << rMessage.GetData() << std::endl;
  }
};

int main()
{
   CMessage<int> message(123);

   CMessageInterface messageInterface;
   messageInterface << message;
}