C++: how to choose the constructor depending on the condition?

Question

Assume I have a class with different constructors:

class A
{
public:
    A(char* string)
    {
        //...
    }

    A(int value)
    {
        //..
    }

           


        

Answer 1

You can use the template class:

template class A
{
protected:
    type    T;
public:

    void A(type t_curr) {T = t_curr;};//e.g.---

    void check() {}
};