Wk. 11

Question 1

Why can overloaded operators call private members?

Answer 1

Because the calling object and the parameter are of the same data type (eg. CBox)

Question 2

Where are friend prototypes placed?

Answer 2

Inside the class declaration

Question 3

What is the syntax for friend declarations?

Answer 3

Friend [data type] [function identifier] [parameter list]

Question 4

What are the some of the pointer operators?

Answer 4

& - the address operator
* - the dereference operator

Question 5

How do you release the space in the heap?

Answer 5

delete [variablePTR]

Question 6

What is the syntax for a class function in a implementation file? (separate from header file)

Answer 6

[return type][tag name]:: [function identifier] (parameter list)

Question 7

What does the implementation syntax look like for a set function of a class CBox?

Answer 7

void CBox::SetWidth()

Question 8

What happens when an object enters or exits a function by value?

Answer 8

The copy ctor is called

Question 9

What happens if a class has no ctors declared?

Answer 9

The compiler will generate a default ctor if one is needed.

Question 10

What is the phrasing of the & operator?

Answer 10

“The address of…”

Question 11

What is the phrasing of the * operator?

Answer 11

“Whatever is pointed to by…”