Structured Data Verified Test Bank Ch.11

Starting Out with C++ from Control Structures to Objects, 9e (Gaddis)

Chapter 11 Structured Data

TRUE/FALSE

1. A struct can contain members with varying data types.

2. Any mathematical operation that can be performed on regular C++ variables can be performed on structure members.

3. Structure variables may be passed as arguments to functions.

4. The structure pointer operator is used to dereference a pointer to a structure, not a pointer that is a member of a structure.

5. If a function is legally prototyped to return an integer value, it can return a structure member that is an integer data type.

6. A function cannot modify the members of a structure.

7. The expression s->m; indicates that s is a structure pointer and m is a structure member.

8. It is possible to output the contents of all members of a structure variable using a cout << statement followed by the name of the structure variable.

9. When a programmer creates an abstract data type, he or she can decide what values are acceptable for the data type, as well as what operations may be performed on the data type.

10. It is possible for a structure variable to be a member of another structure variable.

11. The expression *s->p; indicates that s is a structure pointer and p, which is also a pointer, is a member of the structure pointed to by s.

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

13. You cannot directly assign an integer value to an enum variable.

14. You cannot directly assign an enumerator to an int variable.

15. When you use a strongly typed enumerator in C++11 you must prefix the enumerator with the name of the enum followed by the :: operator.

16. The names of enumerators in an enumerated data type must be enclosed in quotation marks.

17. In C++11 if you want to retrieve a strongly typed enumerator's underlying integer value, you must use a cast operator.

18. Given the structure definition shown, assume that circle1 and circle2 are variables of the Circle type and their members have been initialized.

struct Circle

{

double centerX;

double centerY;

double radius;

};

Then, is it true or false that the following statement correctly determines whether the two variables' members contain the same data?

if (circle1 == circle2)

MULTIPLE CHOICE

1. Which of the following describes only the general characteristics of an object?

2. Which of the following is required after the closing brace of the structure definition?

3. Which of the following is an example of a C++ primitive data type?

4. The following statement __________.

bookList[2].publisher[3] = 't';

5. When a structure is passed __________ to a function, its members are not copied.

6. Passing a structure as a constant reference parameter to a function

7. You may use a pointer to a structure as a

8. Data types that are created by the programmer are known as

9. Before a structure can be used it must be

10. The name of a structure is referred to as its

11. A function __________ return a structure.

12. A structure pointer contains

13. Which of the following assigns a value to the hourlyWage member of employee[2]?

14. If Circle is a structure tag, then the following statement can be the header line for a function that __________.

Circle doSomething(Circle c2)

15. Which of the following will allow you to access structure members?

16. To dereference a structure pointer, the appropriate operator is

17. If a is a structure variable and p, a pointer, is a member of the structure, what will the following statement do?

cout << *a.p;

18. A structure __________ contain members of the same data type.

19. Which of the following statements outputs the value of the gpa member of element [1] of the student array?

20. If Circle is a structure, what does the following statement do?

Circle *pcirc = nullptr;

21. A good reason to pass a structure as a constant reference is

22. With an enumerated data type, the enumerators are stored in memory as

23. In C++11, you can use a new type of enum known as a(n) __________ (also known as an enum class) to have multiple enumerators with the same name, within the same scope.

24. A declaration for an enumerated type begins with the __________ key word.

25. After the following statement executes, what value will the MAPLE enumerator be stored as, in memory?

enum Tree { OAK, MAPLE, PINE };

26. Given the following decaration:

enum Tree { OAK, MAPLE, PINE };

What is the value of the following relational expression?

OAK > PINE

27. Given the following structure decaration, Employee is

struct Employee

{

string name;

int idNum;

};

28. Given the following structure decaration, idNum is

struct Employee

{

string name;

int idNum;

};