/* Example programs from the book Scientific and Engineering Programming in C++: An Introduction with Advanced Techniques and Examples, Addison-Wesley, 1994. (c) COPYRIGHT INTERNATIONAL BUSINESS MACHINES CORPORATION 1994. ALL RIGHTS RESERVED. See README file for further details. */ class VoltageSupply {}; class Acme130 : public VoltageSupply {}; template class CopyableWrapper1d; template class ShareableWrapper1d; template class NewPtr; extern CopyableWrapper1d copyWrap(const NewPtr& p); extern ShareableWrapper1d shareWrap(const NewPtr& p);