Question 1

The delete operator should only be used on pointers that

Accepted Answer

A) have been correctly initialized. 
B) have not yet been used. 
C) are appropriately dereferenced. 
D) point to storage allocated by the new operator. 
E) None of the above 
A) have been correctly initialized. 
B) have not yet been used. 
C) are appropriately dereferenced. 
D) point to storage allocated by the new operator. 
E) None of the above D

Question 2

To dereference a structure pointer and simultaneously access a member of the structure, the appropriate operator to use is

Accepted Answer

A) an asterisk, *. 
B) the dereference operator, . 
D) the ampersand, &. 
E) None of the above 
A) an asterisk, *. 
B) the dereference operator, . 
D) the ampersand, &. 
E) None of the above C

Question 3

You may use the type pointer to a structure as the type of a

Accepted Answer

A) function parameter. 
B) function return type. 
C) structure member. 
D) All of the above 
E) None of the above 
A) function parameter. 
B) function return type. 
C) structure member. 
D) All of the above 
E) None of the above D

Question 4

A pointer with the value 0 (zero)is called the NULL pointer.

Accepted Answer

A) True 
 B)False

Question 5

It is possible for a structure to contain as a member a pointer to its own structure type.

Accepted Answer

A) True 
 B)False

Question 6

The expression *s->p; is only meaningful if s is a pointer to a structure and p is a pointer that is a member of that structure.

Accepted Answer

A) True 
 B)False

Question 7

A reason for passing a pointer to a function is

Accepted Answer

A) to allow the called function to modify a variable accessible to the calling function. 
B) to avoid the overhead of copying large data structures. 
C) to allow easy access to data in the function that is being called. 
D) A and B are both true. 
E) None of the above 
A) to allow the called function to modify a variable accessible to the calling function. 
B) to avoid the overhead of copying large data structures. 
C) to allow easy access to data in the function that is being called. 
D) A and B are both true. 
E) None of the above

Question 8

If dynamically allocated memory is not freed,

Accepted Answer

A) a run- time error informs your user that the program did not free memory space. 
B) the source code will not link correctly. 
C) the system may run out of memory. 
D) it results in a compiler error. 
E) None of the above 
A) a run- time error informs your user that the program did not free memory space. 
B) the source code will not link correctly. 
C) the system may run out of memory. 
D) it results in a compiler error. 
E) None of the above

Question 9

The expression s->m has the same meaning as (*s).m.

Accepted Answer

A) True 
 B)False

Question 10

If a variable occupies more than one byte of memory, its address is

Accepted Answer

A) general delivery. 
B) the address of the last byte of storage allocated to it. 
C) the average of the addresses used to store the variable. 
D) the address of the first byte of storage allocated to it. 
E) None of the above 
A) general delivery. 
B) the address of the last byte of storage allocated to it. 
C) the average of the addresses used to store the variable. 
D) the address of the first byte of storage allocated to it. 
E) None of the above

Question 11

Memory cannot be allocated after a program is already running.

Accepted Answer

A) True 
 B)False

Question 12

A pointer can be passed as an argument to a function.

Accepted Answer

A) True 
 B)False

Question 13

The and operators can respectively be used to increment and decrement a pointer variable.

Accepted Answer

A) modulus, division 
B) dereferencing, indirection  
C) ++, -- 
D) All of the above 
E) None of the above 
A) modulus, division 
B) dereferencing, indirection  
C) ++, -- 
D) All of the above 
E) None of the above

Question 14

It is legal to subtract a pointer variable from another pointer variable.

Accepted Answer

A) True 
 B)False

Question 15

With pointer variables you can access, but you cannot modify, data in other variables.

Accepted Answer

A) True 
 B)False

Question 16

The , also known as the address operator, returns the memory address of a variable.

Accepted Answer

A) exclamation point ( ! ) 
B) asterisk ( * ) 
C) ampersand ( & ) 
D) percent sign (%) 
E) None of the above 
A) exclamation point ( ! ) 
B) asterisk ( * ) 
C) ampersand ( & ) 
D) percent sign (%) 
E) None of the above

Question 17

The statement Rectangle * boxPtr; defines a variable boxPtr to be a pointer pointing to a type Rectangle.

Accepted Answer

A) True 
 B)False

Question 18

A pointer may be initialized with

Accepted Answer

A) the value of a floating- point variable. 
B) the address of an existing object of the appropriate type. 
C) the value of a floating- point constant. 
D) All of the above 
E) None of the above 
A) the value of a floating- point variable. 
B) the address of an existing object of the appropriate type. 
C) the value of a floating- point constant. 
D) All of the above 
E) None of the above

Question 19

If Circle is a structure type, the statement Circle *pcirc;

Accepted Answer

A) defines a structure variable called *pcirc. 
B) initializes a Circle pointer. 
C) defines a structure pointer called pcirc. 
D) is illegal in C++. 
E) None of the above 
A) defines a structure variable called *pcirc. 
B) initializes a Circle pointer. 
C) defines a structure pointer called pcirc. 
D) is illegal in C++. 
E) None of the above

Question 20

A statement that displays the address of the variable num1 is

Accepted Answer

A) cout << &(*num1);. 
B) cout << &num1;. 
C) cout << num1;. 
D) cout << *num1;. 
E) None of the above 
A) cout << &(*num1);. 
B) cout << &num1;. 
C) cout << num1;. 
D) cout << *num1;. 
E) None of the above

The delete operator should only be used on pointers that

To dereference a structure pointer and simultaneously access a member of the structure, the appropriate operator to use is

You may use the type pointer to a structure as the type of a

A pointer with the value 0 (zero)is called the NULL pointer.

It is possible for a structure to contain as a member a pointer to its own structure type.

The expression *s->p; is only meaningful if s is a pointer to a structure and p is a pointer that is a member of that structure.

A reason for passing a pointer to a function is

If dynamically allocated memory is not freed,

The expression s->m has the same meaning as (*s).m.

If a variable occupies more than one byte of memory, its address is

Memory cannot be allocated after a program is already running.

A pointer can be passed as an argument to a function.

The and operators can respectively be used to increment and decrement a pointer variable.

It is legal to subtract a pointer variable from another pointer variable.

With pointer variables you can access, but you cannot modify, data in other variables.

The , also known as the address operator, returns the memory address of a variable.

The statement Rectangle * boxPtr; defines a variable boxPtr to be a pointer pointing to a type Rectangle.

A pointer may be initialized with

If Circle is a structure type, the statement Circle *pcirc;

A statement that displays the address of the variable num1 is

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, and Algorithm Analysis

More About Classes and Object-Oriented Programming

More on C-Strings and the String Class

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Binary Trees

Filters

Exam 10: Pointers

The delete operator should only be used on pointers that

To dereference a structure pointer and simultaneously access a member of the structure, the appropriate operator to use is

You may use the type pointer to a structure as the type of a

A pointer with the value 0 (zero)is called the NULL pointer.

It is possible for a structure to contain as a member a pointer to its own structure type.

The expression *s->p; is only meaningful if s is a pointer to a structure and p is a pointer that is a member of that structure.

A reason for passing a pointer to a function is

If dynamically allocated memory is not freed,

The expression s->m has the same meaning as (*s).m.

If a variable occupies more than one byte of memory, its address is

Memory cannot be allocated after a program is already running.

A pointer can be passed as an argument to a function.

The and operators can respectively be used to increment and decrement a pointer variable.

It is legal to subtract a pointer variable from another pointer variable.

With pointer variables you can access, but you cannot modify, data in other variables.

The , also known as the address operator, returns the memory address of a variable.

The statement Rectangle * boxPtr; defines a variable boxPtr to be a pointer pointing to a type Rectangle.

A pointer may be initialized with

If Circle is a structure type, the statement Circle *pcirc;

A statement that displays the address of the variable num1 is

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, and Algorithm Analysis

More About Classes and Object-Oriented Programming

More on C-Strings and the String Class

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Binary Trees

Filters