Question

In C++, we have Copy Constructor, Destructors, overloaded = which are together called copy control.

My questions are:

1. Is copy constructor used in C# for initializing objects when passed to a function as argument or when initializing (not assigning) or when returning an object from a function as in C++?

2. Does an implicitly overloaded = operator function gets called when we assign (not initialize) any object to another object of the same type?

Answer 1

1. No: reference objects are passed by reference, while value objects are copied byte-for-byte. You can make your own “copy constructors”, but you would be responsible for calling them explicitly.
2. You cannot overload the assignment operator

In fairness to C#, none of the intricacies of the C++ copy control are necessary because of the underlying garbage-collected memory model. For example, you do not need to control the ownership of dynamically allocated objects when copying objects, because you are free to have as many references to dynamic objects as you wish.