Programming II with C++ Quiz 5

To access files from a C++ program, you must #include ____.

<fstream>

In the statement template <class T>, what does T represent?

A generic data type that is used in a function template

Only one file stream object can be declared per C++ program.

False

Opening a file with the flags ios::in | ios::out will preserve the contents of the file if the file already exists.

False

The stream member function fail() can be used to determine whether the last operation performed on a stream was successful.

False

When you store data in a variable, it is automatically saved in a file.

False

File output may be formatted as screen output.

True

string objects cannot be stored to a binary file without further processing because they contain pointers.

True

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

a call to the template function

When a file is opened, the file stream object's "read position" is _____.

at the beginning of the file

ofstream, ifstream, and fstream are:

data types

The ___ member function reports when the end of a file has been found.

eof()

Which statement opens a file and links it to a file stream object?

file.open("Filename.txt")

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

function parameter list

The member function, ___ , reads a single character from a file.

get

The state bit ___ is set when an attempted operation has failed.

ios::failbit

When used by itself, _____ causes a file's contents to be deleted if the file already exists.

ios::out

Outside of a C++ program, a file is identified by its ___. Inside a C++ program, a file is accessed through a ___.

name, file stream object

The member function ___ writes a single character to the file.

put

The ___ may be used to read information from a file.

stream extraction operator (>>)

The ____ may be used to write information to a file.

stream insertion operator <<

The beginning of a function template is marked by a ___.

template prefix

Write a template function that will take 3 numbers of a generic type and multiply them together and return the product.

template<class T> T multiply(T num1, T num2, T num3) { T answer; answer = num1 * num2 * num3; return answer; }

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

type parameter

when the >> operator extracts information from a file, it expects to read data that are separated by _____.

whitespace