Deck 13: Overloading and Templates

Question 1

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

Answer 1

True

Question 2

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

Answer 2

True

Question 3

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

Answer 3

False

Question 4

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

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

Question 5

Operator functions typically return void.

Question 6

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

Question 7

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 8

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 9

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

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

Question 10

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 11

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 12

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

Question 13

In C++, operator is a reserved word.

Question 14

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

Question 15

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

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

Question 16

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 17

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 18

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

Question 19

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 20

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

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

Question 21

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 22

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 23

The ____________________ operator causes a member-wise copy of the member variables of the class.

Question 24

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

Question 25

The only built-in operations on classes are assignment (=) and ____________________.

Question 26

To overload the pre-increment (++) operator for a class, if the operator function is a member of that class, it must have ____ parameter(s).

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

Question 27

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 28

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

Question 29

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 30

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

Question 31

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

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

Question 32

Class templates are called ____ types.

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

Question 33

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 34

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 35

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 36

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 37

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 38

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 39

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 40

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 41

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