////   This file contains the C++ code from Program 8.22 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_22.cpp//void OpenScatterTable::Withdraw (Object& object){    if (count == 0)	throw domain_error ("scatter table is empty");    unsigned int i = FindInstance (object);    if (i == length)	throw invalid_argument ("object not found");    for (;;)    {	unsigned int j;	for (j = (i + 1) % length;	    array [j].state == Entry::occupied;	    j = (j + 1) % length)	{	    unsigned int const h = H (*array [j].object);	    if ((h <= i && i < j) || (i < j && j < h) ||		(j < h && h <= i))		break;	}	if (array [j].state == Entry::empty)	    break;	array [i] = array [j];	i = j;    }    array [i].state = Entry::empty;    array [i].object = 0;    --count;}