Chapter 6

Question 1

The _________ is the part of a function definition that shows the function name, return type, and parameter list

Answer 1

header

Question 2

If a function doesn’t return a value, the word _________ will appear as its return type.

Answer 2

void

Question 3

Either a function’s _________ or its _________ must precede all calls to the function.

Answer 3

definition, prototype

Question 4

Values that are sent into a function are called _________.

Answer 4

arguments

Question 5

Special variables that hold copies of function arguments are called _________.

Answer 5

parameters

Question 6

When only a copy of an argument is passed to a function, it is said to be passed by

Answer 6

value

Question 7

A(n) _________ eliminates the need to place a function definition before all calls to the function

Answer 7

prototype

Question 8

A(n) _________ variable is defined inside a function and is not accessible outside the
function

Answer 8

local

Question 9

_______ variables are defined outside all functions and are accessible to any function within their scope.

Answer 9

global

Question 10

________ variables provide an easy way to share large amounts of data among all the
functions in a program.

Answer 10

global

Question 11

Unless you explicitly initialize global variables, they are automatically initialized to _________

Answer 11

0

Question 12

If a function has a local variable with the same name as a global variable, only the
_________ variable can be seen by the function.

Answer 12

local

Question 13

________ local variables retain their value between function calls.

Answer 13

static

Question 14

The _________ statement causes a function to end immediately.

Answer 14

return

Question 15

________ arguments are passed to parameters automatically if no argument is provided in the function call

Answer 15

default

Question 16

When a function uses a mixture of parameters with and without default arguments, the
parameters with default arguments must be defined _________

Answer 16

last

Question 17

The value of a default argument must be a(n) _________.

Answer 17

constant

Question 18

When used as parameters, _________ variables allow a function to access the parameter’s
original argument

Answer 18

reference

Question 19

Reference variables are defined like regular variables, except there is a(n) _________ in front of the name

Answer 19

&

Question 20

Reference variables allow arguments to be passed by _________.

Answer 20

reference

Question 21

The _________ function causes a program to terminate.

Answer 21

exit

Question 22

Two or more functions may have the same name, as long as their _________ are different.

Answer 22

parameter lists

Question 23

Functions should be given names that reflect their purpose.

Answer 23

true

Question 24

Function headers are terminated with a semicolon.

Answer 24

false

Question 25

Function prototypes are terminated with a semicolon.

Answer 25

true

Question 26

If other functions are defined before main, the program still starts executing at function main

Answer 26

true

Question 27

When a function terminates, it always branches back to main, regardless of where it was called from.

Answer 27

false

Question 28

Arguments are passed to the function parameters in the order they appear in the function call

Answer 28

true

Question 29

The scope of a parameter is limited to the function which uses i

Answer 29

true

Question 30

Changes to a function parameter always affect the original argument as well.

Answer 30

false

Question 31

In a function prototype, the names of the parameter variables may be left out.

Answer 31

true

Question 32

Many functions may have local variables with the same name.

Answer 32

true

Question 33

Overuse of global variables can lead to problems.

Answer 33

true

Question 34

Static local variables are not destroyed when a function returns.

Answer 34

true

Question 35

All static local variables are initialized to −1 by default.

Answer 35

false

Question 36

Initialization of static local variables only happens once, regardless of how many times the function in which they are defined is called

Answer 36

true

Question 37

When a function with default arguments is called and an argument is left out, all arguments that come after it must be left out as well

Answer 37

true

Question 38

It is not possible for a function to have some parameters with default arguments and some without

Answer 38

false

Question 39

The exit function can only be called from main.

Answer 39

false

Question 40

A stub is a dummy function that is called instead of the actual function it represents.

Answer 40

true

Question 41

void total(int value1, value2, value3) { return value1 + value2 + value3; }

Answer 41

The data type of value2 and value3 must be defined. The function is declared void but returns a value.

Question 42

double average(int value1, int value2, int value3) { double average; average = value1 + value2 + value3 / 3; }

Answer 42

The assignment statement should read: average = (value1 + value2 + value3) / 3.0;

Question 43

void area(int length = 30, int width) { return length * width }

Answer 43

width should have a default argument value The function is defined void but returns a value

Question 44

void getValue(int value&) { cout << "Enter a value: "; cin >> value&; }

Answer 44

The parameter should be defined as: int &value The cin statement should read: cin >> value;

Question 45

(Overloaded functions) int getValue() { int inputValue; cout << "Enter an integer: "; cin >> inputValue; return inputValue; } double getValue() { double inputValue; cout << "Enter a floating-point number: "; cin >> inputValue; return inputValue; }

Answer 45

The functions must have different parameter lists.