C++ varadic templates mixing values, arrays and objects

I would like to initialize a class with a mix of basic types, arrays and sub-structures like

A a { 1,                   // int
      1.2,                 // double
      "Hello",             // const char *
      { 1, 2, 3 },         // array<int>
      { 1.2, 2.4 }         // array<double>
      { 1, 1.2, "Hello" }  // sub-structure of any types
};

where the sub-structure should be able to contain nested sub-structures as well.

For the basic types I can do that with variadic templates:

#include <iostream>

class A {
public:

   template <class T, class... Args>
   void print(T v) {
      std::cout << v << std::endl;
   }

   template <class T, class... Args>
   void print(T v, Args... args) {
      std::cout << v << std::endl;
      print(args...);
   };

   template <class T, class... Args>
   A(T v, Args... args) {
      print(v, args...);
   };
};

int main() {

   A a { 1,
         1.2,
         "Hello",
   };
}

which correctly produces

1
1.2
Hello

But I fail for arrays and sub-structures. I'm restricted to C++11. Any help highly appreciated.