You’re given a simple code for the class BankCustomer. Write the following functions:
* Copy constructor
* = operator overload
* == operator overload
* + operator overload (customers’ balances should be added up, as an example of
joint account between husband and wife)
Note:Anyone confusing assignment and equality operators should be dismissed from
the interview. The applicant might make a mistake of passing by value, not by reference.
The candidate might also want to return a pointer, not a new object, from the addition
operator. Slightly hint that you’d like the value to be changed outside the function,
too, in the first case. Ask him whether the statement customer3 = customer1 + customer2
would work in the second case.