Arbitrary dimensional array using Variadic templates

Question

How can I create an Array class in C++11 which can be used like

Array < int, 2, 3, 4> a, b; 
Array < char, 3, 4> d; 
Array < short, 2> e;
         


        

Answer 1

Try this:

#include 

template 
class Array
{

public:

    Array() {}

    ~Array() {}

    Array& operator[](int index)
    {
        return data[index];
    }

private:

    Array data[N1];
};

template
class Array
{

public:

    Array() {}

    ~Array() {}

    T& operator[](int index)
    {
        return data[index];
    }

private:

    T data[N];
};

int main()
{
    Array < int, 2, 3, 4> a, b;
    Array < char, 3, 4> d;
    Array < short, 2> e;

    a[0][1][2] = 15;
    d[1][2]    = 'a';

    std::cout << "a[0][1][2] = " << a[0][1][2] << std::endl;
    std::cout << "d[1][2]    = " << d[1][2]    << std::endl;

    return 0;
}

You might also want to throw in range checking and perhaps some iterators to be fancy :)