////   This file contains the C++ code from Program 7.24 of//   "Data Structures and Algorithms//    with Object-Oriented Design Patterns in C++"//   by Bruno R. Preiss.////   Copyright (c) 1998 by Bruno R. Preiss, P.Eng.  All rights reserved.////   http://www.pads.uwaterloo.ca/Bruno.Preiss/books/opus4/programs/pgm07_24.cpp//Object& SortedListAsArray::Find (Object const& object) const{    unsigned int const offset = FindOffset (object);    if (offset < count)	return *array [offset];    else	return NullObject::Instance ();}Position& SortedListAsArray::FindPosition (    Object const& object) const{    Pos& result = *new Pos (*this);    result.offset = FindOffset (object);    return result;}