Access template parameter from class object

Question

I have a class template in myclass.hpp:

template<class T, class P>
class myclass
{
....
};

In my main.cc I create an object of the class:

myclass<int, double> mc;
otherfunc<myclass>(mc);

In some other header file header1.hpp:

template<class MyClass>
void otherfunc(MyClass const &mc)
{
/* Access through 'mc' the underlying template parameters T and P*/
}

How can I access the template parameter T and P in header1.hpp?

Answer 1

How can I access the template parameter T and P in header1.hpp?

Provide public type definitions in your class myclass:

template<class T, class P>
class myclass
{
public:
     typedef T T_type;
     typedef P P_type;
....
};

Thus you can access those types as

typename myclass::T_Type x;
typename myclass::P_Type y;

elsewhere.