How do I get the template type of a given element at runtime in C++?

Question

I\'m designing a simple Array class with the capability of holding any type of object, like a vector that can hold multiple types of data in one object. (This i

Answer 1

I was thinking something along the lines of this template for your get_element.

template 
T& Array::get_element(int i, T &t)
{
    Object *o = dynamic_cast *>(vec[i]);
    if (o == 0) throw std::invalid_argument;
    return t = o->object;
}

Array arr;
double f;
int c;

arr.get_element(0, f);
arr.get_element(1, c);

But alternatively, you could use this:

template 
T& Array::get_element(int i)
{
    Object *o = dynamic_cast *>(vec[i]);
    if (o == 0) throw std::invalid_argument;
    return o->object;
}

f = arr.get_element(0);
c = arr.get_element(1);