EXPLAIN WITH RESPECT TO C++. IN DETAIL, WITH CODE IF NEEDED

6. When is it important not to rely on a default copy constructor? 7. You are given a header file and object code (but no source code) for a class X. You are the author of class Y. You need to write a program that will make conversions between X and Y, going both directions (i.e. X to Y and Y to X). How will you accomplish the conversions