?? pgm12_03.cpp
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//// This file contains the C++ code from Program 12.3 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/pgm12_03.cpp//SetAsArray::SetAsArray (unsigned int n) : Set (n), array (n){ for (unsigned int item = 0; item < universeSize; ++item) array [item] = false;}void SetAsArray::Insert (Object& object){ unsigned int const item = dynamic_cast<Element&> (object); array [item] = true;}bool SetAsArray::IsMember (Object const& object) const{ unsigned int const item = dynamic_cast<Element const&> (object); return array [item];}void SetAsArray::Withdraw (Object& object){ unsigned int const item = dynamic_cast<Element&> (object); array [item] = false;}
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