Deck 16: Exceptions, Templates, and the Standard Template Library STL

Question 1

An actual instance of a template function is created in memory when the compiler encounters

A)a call to the template function.
B)a catch block.
C)a try block.
D)the template prefix.
E)None of the above

Answer 1

A

Question 2

When an error occurs, an exception is

A)passed.
B)ignored.
C)created.
D)thrown.
E)None of the above

Answer 2

D

Question 3

A _ is a "generic" function that can work with different data types.

A)function argument
B)function template
C)function parameter
D)member function
E)None of the above

Answer 3

B

Question 4

In the statement template , what does T represent?

A)T stands for "template"
B)The name of the function template
C)A generic data type that is used in a function template
D)The "int" data type
E)None of the above

Question 5

How much memory is reserved for a function template?

A)four bytes
B)no memory
C)eight bytes
D)two bytes
E)None of the above

Question 6

The bad_alloc exception is thrown

A)when program code encounters a bad memory location.
B)only when the program contains a catch block.
C)by the new operator.
D)when you forget to free memory with the delete operator.
E)None of the above

Question 7

A(n)is like a pointer. It is used to access the individual data elements in a container.

A)subscript indicator
B)iterator
C)element access operator
D)global data finder
E)None of the above

Question 8

An associative container uses to access values stored in it.

A)complex sort algorithms
B)functions
C)keys
D)data
E)None of the above

Question 9

In a function template, the programmer substitutes for .

A)arguments, parameters
B)parameters, arguments
C)angle brackets, parentheses
D)parameters, data types
E)None of the above

Question 10

The algorithms provided by the STL are implemented as , and perform various operations on elements of containers.

A)global variables
B)virtual functions
C)private data members
D)function templates
E)None of the above

Question 11

In the statement template , what does the word class indicate?

A)You are deriving a class called T from a class called template.
B)class is a keyword that indicates that T is a type parameter.
C)A class called T will automatically be created by the compiler.
D)You are deriving a class from an existing class called T.
E)None of the above

Question 12

All type parameters defined in a function template must appear at least once in the

A)function parameter list.
B)type.h file.
C)preprocessor directives.
D)function call.
E)None of the above

Question 13

Class templates allow you to create one general version of a class without having to

A)write any code.
B)use member functions.
C)duplicate code to handle multiple data types.
D)use private members.
E)None of the above

Question 14

The most important data structures in the STL are _ _ and .

A)templates, prototypes
B)lists, groups
C)containers, iterators
D)arrays, structs
E)None of the above

Question 15

A function template's prefix contains _ in angled brackets.

A)the function's return type
B)constant values
C)the function definition
D)one or more generic data types
E)None of the above

Question 16

are used to signal errors or unexpected events that occur while a program is running.

A)Templates
B)Virtual functions
C)Exceptions
D)Destructors
E)None of the above

Question 17

Types of iterators are

A)random- access.
B)input and output.
C)forward and bidirectional.
D)All of the above
E)None of the above

Question 18

A(n)_ is a class that stores data and organizes it in some fashion.

A)template
B)container
C)iterator
D)box
E)None of the above

Question 19

A catch block serves as

A)a temporary variable.
B)an indicator of program correctness.
C)an exception handler.
D)permanent storage for trapped errors.
E)None of the above

Question 20

A try block must immediately be followed by one or more

A)catch blocks.
B)error parameters.
C)error messages.
D)throw blocks.
E)None of the above

Question 21

A program may not contain a "regular" version of a function and a template version of the function at the same time.

Question 22

The three sequential container objects currently provided by the STL are

A)vector, deque, list.
B)set, multiset, map.
C)map, list, array.
D)multimap, map, multilist.
E)None of the above

Question 23

Non- template functions have a slight advantage in speed over template functions.

Question 24

The line containing a throw statement is known as the throw point.

Question 25

A thrown exception for which there is no matching catch block will cause the execution of the program to abort.

Question 26

There is no difference between defining an object of an ordinary class and an object of a template class.

Question 27

At most one catch block may be attached to a single try block.

Question 28

An exception is a condition that can be caused by a syntax error in the program.

Question 29

A sequential container organizes data in a sequential fashion, similar to an array or linked list.

Question 30

Iterators are objects that are similar to pointers.

Question 31

Function templates allow you to write a single function definition that works with many different data types.

Question 32

Two types of container classes in the STL are

A)box and cylinder.
B)sequential and associative.
C)constant and literal.
D)array and struct.
E)None of the above

Question 33

The Standard Template Library (STL)contains templates for useful algorithms and data structures.

Question 34

The STL vector and list classes are examples of sequential containers.

Question 35

If an exception is not caught, it is stored for later use.

Question 36

The beginning of a function template is marked by a

A)template prefix.
B)parameter list.
C)return type.
D)semicolon.
E)None of the above

Question 37

The C++ mechanism for exception handling encloses code that might throw an exception in a try block and puts exception handling code in catch blocks attached to the try block.

Question 38

To catch an exception, a program must

A)have a try/catch construct.
B)have a throw()function.
C)first experience a fatal error.
D)first experience an unrecoverable error.
E)None of the above

Question 39

Using a function template often requires writing less code than overloading a function.

Question 40

A(n)is used in a function template to specify a generic data type.

A)dummy variable
B)catch block
C)exception
D)type parameter
E)None of the above