The move assignment operator

- [Instructor] Along with the move constructor,…the move assignment operator is also an important…part of supporting move semantics in your code.…Here, I have a working copy of rational-02…from chapter four of the exercise files.…This includes the move constructor…we added earlier in this chapter.…First thing I'm going to do is I'm going to come down here…to our assignment operator, and I just want to put in…a message so that we know when it's being called,…and now we'll come down here and call it inside of main,…and when I build and run, you'll notice that D…is being assigned the value of B,…and we call the assignment operator in order to do that.…

Now, if I change this assignment to a move assignment,…and I build and run, you'll notice that the regular…assignment operator is still being called…because we don't have a move assignment operator,…and so let's go ahead and build one.…So, I'm going to our take regular assignment operator here,…and I'm just going to make a copy of it, and make some changes.…We can't do this with a const because we're going…