storing a number of functions in a vector that returns a function pointer and accessing them

snfvrfp.cpp

#include <iostream>
#include <vector>

int display (int, int);

int sum (int n1, int n2)
{
    return n1 + n2;
}

int subtract (int n1, int n2)
{
    return n1 - n2;
}

int multiply (int n1, int n2)
{
    return n1 * n2;
}

int divide (int n1, int n2)
{
    return n1 / n2;
}

int (*func(int (*f) (int , int ))) (int, int)
{
    std::cout << __func__ << " is called " << std::endl;
    return f;
}


int main()
{
    std::vector<int (*)(int, int)> vec_func;

    vec_func.push_back(func(sum));

    std::vector<int (*) (int, int)>::iterator it = vec_func.begin();

    for (unsigned i = 0; it != vec_func.end(); ++it, ++i)
        std::cout << vec_func[i](22, 22) << std::endl;

    return 0;
}