Question

I am writing a program that can take in either 3 ints, or 3 floats in the constructor(I suppose I will need 2 constructors for this). I want to declare an array and store the values in the array “numbers”.

If I don’t know which constructor will be called I am not sure how to declare “numbers”(as an int array or as a float array).

Is there a good technique to get around this? or can I create an int array and a float array and somehow have a generic pointer to the array being used(is using a void pointer the best way to do this)?

Answer 1

Looks like you want a templated class.

template <class T>
class Foo
{
public:
    Foo(T a, T b, T c)
    {
        numbers[0] = a;
        numbers[1] = b;
        numbers[2] = c;
    }
private:
    T numbers[3];
};