////   This file contains the C++ code from Program 8.20 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/pgm08_20.cpp//unsigned int OpenScatterTable::FindMatch (    Object const& object) const{    unsigned int const hash = H (object);    for (unsigned int i = 0; i < length; ++i)    {	unsigned int const probe = (hash + C (i)) % length;	if (array [probe].state == Entry::empty)	    break;	if (array [probe].state == Entry::occupied	    && object == *array [probe].object)	    return probe;    }    return length;}Object& OpenScatterTable::Find (Object const& object) const{    unsigned int const offset = FindMatch (object);    if (offset < length)	return *array [offset].object;    else	return NullObject::Instance ();}