Deck 13: Operator Overloading and Templates

Question 1

To include the operator function operator+ as a nonmember function of the class rectangleType, its prototype in the definition of rectangleType is: ____ rectangleType operator+(const rectangleType&, const rectangleType&);

A) bool
B) int
C) double
D) friend

Answer 1

D

Question 2

The declaration of a friend function cannot be placed within the private part of the class.

Answer 2

False

Question 3

A(n) ____ function is a nonmember function that has access to all members of the class.

A) access
B) protected
C) friend
D) void

Answer 3

C

Question 4

The return type of the function operator == is ____.

A) int
B) bool
C) char
D) void

Question 5

Both parameters of the function to overload the operator << are reference parameters.

Question 6

The function that overloads the ____ operator for a class must be declared as a member of the class.

A) ::
B) *
C) ->
D) +

Question 7

In C++, >> is used as a stream extraction operator and as a right shift operator.

Question 8

When writing the definition of a friend function, the name of the class and the scope resolution operator precede the name of the friend function in the function heading.

Question 9

Most operator functions can either be member functions or nonmember functions of a class.

Question 10

Which of the following function prototypes overloads the != operator for the class rectangleType?

A) bool operator!=(rectangle&) const;
B) bool operator!=(const rectangleType&) const;
C) int operator!=(const rectangleType) const;
D) int operator!=(rectangle&) const;

Question 11

Operators can be overloaded either for objects of the user-defined types, or for a combination of objects of the user-defined type and objects of the built-in type.

Question 12

When an object invokes a member function, the member function references the pointer ____ of the object.

A) object
B) it
C) this
D) address

Question 13

The general form of the functions to overload the binary operators as member functions of a class is returnType operator#(____ className&) const;.

A) class
B) const
C) *
D) &

Question 14

The name of the function to overload the operator <= is ____.

A) overload<=
B) <=new
C) operator<=
D) <=operator

Question 15

A friend function does not have access to the private data members of the class.

Question 16

The general syntax to overload the stream extraction operator >> for a class is ____.

A) istream& operator>>(istream&, className&);
B) const istream& operator>>(istream&, className&);
C) friend operator>>(istream&, className&);
D) friend istream& operator>>(istream&, className&);

Question 17

Operator functions typically return void.

Question 18

Every object of a class maintains a (hidden) pointer to itself, and the name of this pointer is ____.

A) self
B) object
C) it
D) this

Question 19

The associativity of the operator = is from right to left.

Question 20

In C++, operator is a reserved word.

Question 21

With the exception of the ____________________ operator and the member selection operator, operators must be overloaded to be used on class objects.

Question 22

Which of the following is the general syntax of the function prototype to overload the pre-increment operator ++ as a member function?

A) className operator++();
B) className operator++(int);
C) friend className operator++();
D) friend className operator++(int);

Question 23

When the post-increment operator is overloaded as a nonmember function of the class, the operator function has ____ parameter(s).

A) no
B) one
C) two
D) three

Question 24

A(n) ____________________ returns random numbers whose likelihoods correspond to a specific shape such as uniform or normal.

Question 25

Using a class ____________________ allows you to define an arrayListType that can process any type of list.

Question 26

Class templates are called ____ types.

A) polymorphic
B) structured
C) member
D) parameterized

Question 27

Suppose cType is a class template, which can take int as a parameter.The statement: ____ declares x to be an object of type cType, and the type passed to the class cType is int.

A) cType x;
B) cType int x;
C) cType int = x;
D) cType int :: x;

Question 28

Using a class template, you can write a single code segment for a set of related ____.

A) classes
B) functions
C) operators
D) constructors

Question 29

Which of the following is a built-in operation on classes?

A) increment
B) assignment
C) decrement
D) relational operators

Question 30

Suppose cType is a class template, and func is a member function of cType.The heading of the function definition of func is: ____.

A) template
FuncType cType == func(parameters)
B) template
FuncType cType
C) template
FuncType cType::func(parameters)
D) template
FuncType cTypefunc(parameters;

Question 31

The return type of the function to overload the operator >> must be a reference to a(n) ____ object.

A) iostream
B) ostream
C) stream
D) istream

Question 32

Which of the following is the general syntax of the function prototype to overload the post-increment operator as a member function?

A) className operator++();
B) friend className operator++();
C) className operator++(int);
D) friend className operator++(int);

Question 33

To overload the pre-increment (++) operator as a member of a class, requires ____ parameter(s).

A) no
B) one
C) two
D) three

Question 34

The general syntax for the function prototype to overload the assignment operator = for a class is ____.

A) friend className& operator=(const className&);
B) className& operator=(className&);
C) string className& operator=(className&);
D) const className& operator=(const className&);

Question 35

Which of the following is the syntax to declare the operator function operator[] as a member function of a class for nonconstant arrays?

A) Type& []operator(int index);
B) Type operator[](int index);
C) Type& operator[](int index);
D) Type [](int index);

Question 36

Which of the following is the general syntax of the function prototype to overload the pre-increment operator as a nonmember function?

A) className operator++();
B) friend className operator++();
C) className operator++(int);
D) friend className operator++(className&);

Question 37

Any function that overloads an operator is called a(n) ____________________ function.

Question 38

If you overload the binary arithmetic operator + as a member function, how many objects must be passed as parameters?

A) none
B) one
C) two
D) three

Question 39

The operators that cannot be overloaded are ., .*, ::, ?:, and ____________________.

Question 40

Which of the following is the syntax to declare the operator function operator[] as a member function of a class for constant arrays?

A) const Type& []operator(int index) const;
B) const Type& operator[](int index) const;
C) const Type& operator[](int index);
D) const Type [](int index) const;

Question 41

A(n) ____________________ constructor converts its argument to an object of the constructor's class.