Deck 6: Modularity Using Functions

Question 1

____ are any set of conditions a function requires to be true if it s to operate correctly.

A) Postconditions
B) Preconditions
C) Sentinels
D) Prototypes

Answer 1

B

Question 2

Calling a function places a certain amount of overhead on a computer.

Answer 2

True

Question 3

The names in parentheses in the header are called the formal ____ of the function.

A) parameters
B) variables
C) identifiers
D) constants

Answer 3

A

Question 4

The declaration statement for a function is referred to as a function ____.

A) prototype
B) calling
C) definition
D) initialization

Question 5

Declaration statements containing the word extern create new storage areas.

Question 6

A ____ is the beginning of a final function that can be used as a placeholder for the final unit until the unit is completed.

A) declaration
B) definition
C) stub
D) prototype

Question 7

C++ provides the capability of using the same function name for more than one function, referred to as function ____.

A) prototyping
B) conditioning
C) interpreting
D) overloading

Question 8

In creating C++ functions, you must be concerned with the function itself and how it interacts with other functions, such as main() .

Question 9

A function ____ is a single, complete function that serves as a model for a family of functions.

A) template
B) stub
C) prototype
D) definition

Question 10

Static variables can be initialized using other variables.

Question 11

After they re created, local static variables remain in existence for the program s lifetime.

Question 12

The function that does the calling is referred to as the ____ function.

A) summoned
B) child
C) called
D) calling

Question 13

In C++, nesting of functions is never permitted.

Question 14

Calling a function and passing arguments by value is a distinct advantage of C++.

Question 15

You should make all your variables global if possible.

Question 16

In C++, a function is allowed to change the contents of variables declared in other functions.

Question 17

C++ functions are constructed to be independent modules.

Question 18

Every C++ function consists of two parts, a function header and a function ____.

A) prototype
B) definition
C) body
D) declaration

Question 19

The line template , called a ____, is used to inform the compiler that the function immediately following is a template using a data type named T .

A) template prototype
B) template body
C) template prefix
D) template postfix

Question 20

When a value is passed to a called function with only copies of the values contained in the arguments at the time of the call, the passed argument is referred to as a ____.

A) pass by reference
B) call by value
C) call by reference
D) passed by value

Question 21

In C++ a reference parameter is declared with the syntax:

A) dataType referenceName
B) dataType* referenceName
C) dataType* referenceName
D) dataType referenceName

Question 22

A function returning a value must specify the ____________________ type of the value to be returned.

Question 23

In a function call, the items enclosed in parentheses are known as ____________________.

Question 24

Passing addresses is referred to as a function ____.

A) pass by value
B) pass by reference
C) call by value
D) pass by copy

Question 25

____ is the section of the program where the identifier, such as a variable, is valid or known.

A) Reach
B) Spread
C) Range
D) Scope

Question 26

In C++, function prototypes typically have ____ scope.

A) external
B) local
C) internal
D) global

Question 27

Because the variables created in a function are conventionally available only to the function, they are said to be ____ variables.

A) local
B) global
C) external
D) internal

Question 28

The default in C++ is to make passes by ____.

A) address
B) pointer
C) value
D) reference

Question 29

In addition to argument data types, ____________________ argument values may be assigned in the function prototype for added flexibility.

Question 30

A local variable that is declared as ____ causes the program to keep the variable and its latest value even when the function that declared it is through executing.

A) auto
B) static
C) register
D) extern

Question 31

The use of function ____________________ permits the compiler to error-check data types.

Question 32

Where and how long a variable s storage locations are kept before they re released can be determined by the variable s ____.

A) data type
B) name
C) storage category
D) scope

Question 33

Telling the C++ compiler that a function is ____ causes a copy of the function code to be placed in the program at the point the function is called.

A) inline
B) online
C) overloaded
D) overline

Question 34

The symbol ____ represents the C++ s scope resolution operator.

A) ::
B) :
C) ||
D) ;;

Question 35

Most computers have a few high-speed storage areas called ____.

A) registers
B) static
C) CPU memory
D) external memory

Question 36

Local variables can be members only of the auto , static , or ____ storage categories.

A) global
B) const
C) extern
D) register

Question 37

A(n) ____________________ function is summoned into action by the calling function.

Question 38

A variable with ____ scope has storage created for it by a declaration statement located outside any function.

A) local
B) global
C) internal
D) function

Question 39

A function returning a value must specify, in its ____, the data type of the value to be returned.

A) body
B) initialization
C) assignment
D) header

Question 40

A(n) ____ declaration statement simply informs the computer that a global variable already exists and can now be used.

A) auto
B) static
C) extern
D) global

Question 41

Initialization of ____________________ variables is done only once, when the program is first compiled.

Question 42

Function call overhead is justified because it can reduce a program s ____________________ substantially.

Question 43

To actually use a returned value, you must provide a(n) ____________________ to store the value or to use the value in an expression.

Question 44

In addition to the space dimension represented by scope, variables have a(n) ____________________ dimension.

Question 45

A variable is said to be alive if ____________________ for the variable is available.

Question 46

C++ provides two types of address parameters: ____________________ and pointers.

Question 47

The advantage of using an inline ____________________ is an increase in execution speed.

Question 48

Variables that are created by definition statements external to a function are called ____________________ variables.

Question 49

After a function returns a value, program control reverts to the ____________________ function.

Question 50

While a function is executing, only variables and parameters that are in the ____________________ for that function can be accessed.