Member function template with the number of parameters depending on an integral template parameter

Question

I have the following class template:

template
class MyClass;

where T is some type, N - num

Answer 1

Maybe like this:

#include 
#include 

template 
class MyClass
{
    template 
    typename std::enable_if, Args...>::value>::type
    foo(Args &&... args)
    {
        // for example:
        MyClass m(std::forward(args)...);
        // ...
    }
};

This will work only if MyClass has a constructor that accepts the relevant arguments directly (like MyClass(A1, A2, A3)), but I don't think it works if MyClass has a constructor that requires an initializer list, nor will it work if MyClass is an aggregate that requires brace-initialization.

That said, it doesn't look like your MyClass could possibly accept an initializer list, since you said that it has to take precisely N arguments, which an IL cannot promise.