Linked List

Code from a book:

Code:

class LinkableClass
{
      public:
                LinkableClass* pNext;
                //other members
}


LinkableClass* pHead = (LinkableClass*)0;

What does this mean

Code:

  (LinkableClass*)0

?

What does this mean

cast null-pointer to the type Pointer to Class LinkableClass

Its a cast, albeit unnecessary. It just defining pHead as 0 and telling the compiler to consider 0 an object of the LinkableClass type.

The cast is unnecessary though.

EDIT:

telling the compiler to consider 0 an object of the LinkableClass type

Not really. More like it means that pHead is a null pointer.

Thanks all