chapter 6

Question 1

actual parameter

Answer 1

a variable or expression listed in a call to a function

Question 2

automatic variable

Answer 2

a variable for which memory is allocated at block entry and deallocated at block exit

Question 3

body (of a function)

Answer 3

the code within the function required to accomplish the task

Question 4

Data type (of a function)

Answer 4

the return type of a value-returning function

Question 5

Definition (of a function)

Answer 5

includes name of function, listing of the parameters if any, data type of each parameter, data type of value returned by the function, and the code required to accomplish the task

Question 6

different formal parameter lists

Answer 6

when 2 or more functions with the same name have a different number of formal parameters, or if they have the same number of parameters, the data type of the parameters differ in at least 1 position

Question 7

driver

Answer 7

program that tests a function

Question 8

external variable

Answer 8

• a global variable declared within a function using the “extern” reserved word
• the “extern” keyword indicates that the variable is declared elseware

Question 9

formal parameter

Answer 9

a variable declared in the function heading

Question 10

function header (heading)

Answer 10

includes name of the function, number of parameters if any, data type of each parameter, and data type of the value returned by the function

Question 11

function overloading (overloading a function name)

Answer 11

creating several functions with the same name but different parameters lists

Question 12

function prototype

Answer 12

function heading without the body of the function

Question 13

global identifier

Answer 13

identifier declared outside of every function definition

Question 14

local declaration

Answer 14

declaration of a variable within a block of code for use only within that block

Question 15

local identifier

Answer 15

identifier declared within a function (a block)

Question 16

local variables

Answer 16

variables declared in the body of a function (or block) for use only within that function (or block)

Question 17

module

Answer 17

another name for a function

Question 18

nested block

Answer 18

block declared within another block

Question 19

parameter

Answer 19

• identifier in a function header, which acts within the function as a regular local variable
• may be formal or actual

Question 20

reference parameter

Answer 20

formal parameter that receives the location (memory address) of the corresponding actual parameter

Question 21

return type (of a function)

Answer 21

• the data type of the value that the function returns

- also called the data type of the function

Question 22

scope

Answer 22

refers to where an identifier is accessible (visible) in a program

Question 23

scope resolution operator

Answer 23

• an operator that, when used, causes a global variable declared before the definition of a function (or block) to be accessed by the function (or block), even if the function (or block) has an identifier with the same name as the variable
• (::)

Question 24

signature (of a function)

Answer 24

consists of the function name and its formal parameter list

Question 25

static variable

Answer 25

variable for which memory remains allocated as long as the program executes

Question 26

stub

Answer 26

function that is not fully coded

Question 27

value parameter

Answer 27

formal parameter that receives a copy of the content of the corresponding actual parameter

Question 28

value-returning functions

Answer 28

functions that have a return type

Question 29

void functions

Answer 29

functions that do not have a data type