How to check if template type is of another template type?

Question

Suppose I have a template class with int parameter:

template <int Param>
class myclass
{
    // ...
}

And I want to implement, for example, a cast function from one int-parametrized to another:

template <int Param, class T>
myclass<Param> myclass_cast(const T& other)
{
    // ... some logic
}

How can I statically determine that T is a templated class myclass<N> ? (I can use C++14).

Answer 1

Instead of having a template parameter of T , you can deduce the parameter of the myclass specialization you pass in:

template <int Param, int Other>
myclass<Param> myclass_cast (const myclass<Other>& other)
{

}