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Exam 14: More About Classes

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Question 1

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A move operation transfers resources from a source object to a target object.

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Question 2

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A(n) __________ informs the compiler that a class will be declared later in the program.

A) static function
B) private data member
C) forward declaration
D) object conversion
E) None of these

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Question 3

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A good reason to overload an operator is to enable it to

A member function that is declared __________ may not access any non-static data members in the class.

An ___________ operator can work with programmer-defined data types.

In C++11 an rvalue reference is a reference variable that can refer only to temporary objects.

A(n) __________ is a special function that is called whenever a new object is created and initialized with another object's data.

When a class declares an entire class as its friend, the friendship status is reciprocal. That is, each class's member functions have free access to the other's private members.

If you do not furnish a __________, a default one will be provided by the compiler.

The this pointer is a special built-in pointer that is automatically passed as a hidden argument to all non-static member functions.

A non-static member function may not access a static member variable.

When you redefine the way a standard operator works when it is used with class objects, you have __________ the operator.

In C++11 reference variables that can refer only to temporary objects that would otherwise have no name are called __________ and are declared with a __________.

A static member variable can be used when there are no objects of the class in existence.

To overload the + operator, you would write a function named

A static member function does not need to be called by a specific object of the class.

Which type of function is not a member of a class but has access to the private members of the class?

A public data member may be declared a friend of a private function.

Select all that apply. Given the following code fragment, which of the things shown below happen when the statement on line 8 executes? 1 int square(int a) 2 { 3 $\quad$ return a * a; 4 } 5 int main() 6 { 7 $\quad$ int x = 0; 8 $\quad$ x = square(5) ; 9 $\quad$ cout << x << endl; 10 $\quad$ return 0; 11 }

It is possible to declare an entire class as a friend of another class.