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

To add to the solution jwfearn and kevin provided, here's the corresponding solution when the function returns shared_ptr:

struct C {
  shared_ptr get() const {
    return c;
  }
  shared_ptr get() {
    return const_pointer_cast(static_cast(*this).get());
  }
  shared_ptr c;
};