Inherit from const class

Question

I would like to inherit from a class with the const specifier like this:

class Property
{
    int get() const;
    void set(int a);
};

class Co         


        

Answer 1

I had the need for a related problem, which is: to really control/highlight mutable and const access on some class. I did it with this simple reusable template wrapper:

template 
class TAccessor : private T
{
public:
    const T&    Const() const { return *this; }
    T&          Mutable() { return *this; }
};

// Example of use:
template 
using MyVector = TAccessor>;


void main()
{
    MyVector vector;

    vector.Mutable().push_back(10);

    int x = vector.Const()[1];
    ...
}