CSCI261 Lecture Questions #1 Function and Operator Overloading
This worksheet is for your use during and after lecture. It will not be collected or graded, but I think you will find it a
useful tool as you learn C++ and study for the exams. Explain all false answers for the “True or False” questions; in
general, show enough work and provide enough explanation so that this sheet is a useful pre-exam review. I will be
happy to review your answers with you during office-hours, via Email, or instant messaging.
1. Name six binary operators in C++.
2. When binary operators are overloaded by global functions:
(a) True or False: Both operands must be of the same class.
(b) True or False: The calling object is on the left of the operation symbol.
(c) True or False: The operator should return one of the arguments provided.
(d) True or False: The operator must be written in some class’ scope.
3. (a) Write the protoype of a
friend
global operator for taking the modulus of a
myClass
object (LHS) and an
integer (RHS). It should return an integer value.
(b) Where would you find the answer to part awithin
myClass
’ source files?
(c) Write the protoype of a global operator for multiplying an integer (LHS) with a
myClass
object (RHS). It
should return a new
myClass
object.
(d) Where would you find the answer to part cwithin
myClass
’ source files?
(e) Assume
myClass
has a default constructor. Write a snippet of C++ that would invoke the two global operators
prototyped in parts aand c.
4. The
friend
keyword may occur in C++ source only between the curly braces of what?
