ocr: Here are a few of the abbreviations/etc used here: term meaning ctor constructor copy-ctor copy constructor (also X(const X&)', pronounced X-X-ret) dtor destructor fn function fns functions ptr pointer,aC/C++ construct declared by: int * P; ref reterence, aC++ construct declared by: int & r; const aC++ keyword which is short for constant" 00 object-oriented OOP object-oriented programming OOPL ODject-oriented programming language method ans alternate term for member function' message an alternate term for invoking a member function' nil the zero' or empty' pointer (NULL'inC, "O'inC++)