How do I remove code duplication between similar const and non-const member functions?

Question

Let\'s say I have the following class X where I want to return access to an internal member:

class Z
{
    // details
};

class X
{
    std::vec         


        

Answer 1

I did this for a friend who rightfully justified the use of const_cast... not knowing about it I probably would have done something like this (not really elegant) :

#include 

class MyClass
{

public:

    int getI()
    {
        std::cout << "non-const getter" << std::endl;
        return privateGetI(*this);
    }

    const int getI() const
    {
        std::cout << "const getter" << std::endl;
        return privateGetI(*this);
    }

private:

    template 
    static T privateGetI(C c)
    {
        //do my stuff
        return c._i;
    }

    int _i;
};

int main()
{
    const MyClass myConstClass = MyClass();
    myConstClass.getI();

    MyClass myNonConstClass;
    myNonConstClass.getI();

    return 0;
}