Question

I am a biginer to Qt and referring to some tutorials on implicit ans explicit sharing and I came across following article.

http://cdumez.blogspot.com/2011/03/implicit-explicit-data-sharing-with-qt.html

in the code section I was not able to understand the functionality of the following operator

Contact& Contact::operator=(const Contact& other) {
  d = other.d;
  return *this;
}

If some one could explain this what exactly this does and why it is there for in code it would be a great help.

Thanks guys.

~Tharanga

Answer 1

He is overloading the assignment operator. That way, when he says

c2 = c1;

c2.d will be the same as c1.d.

It is not Qt specific. Also see this long explanation.