/* The following code example is taken from the book * "C++ Templates - The Complete Guide" * by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002 * * (C) Copyright David Vandevoorde and Nicolai M. Josuttis 2002. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */// additive assignment of SArraytemplate<class T>SArray<T>& SArray<T>::operator+= (SArray<T> const& b){    for (size_t k = 0; k<size(); ++k) {        (*this)[k] += b[k];    }    return *this;}// multiplicative assignment of SArraytemplate<class T>SArray<T>& SArray<T>::operator*= (SArray<T> const& b){    for (size_t k = 0; k<size(); ++k) {        (*this)[k] *= b[k];    }    return *this;}// multiplicative assignment of scalartemplate<class T>SArray<T>& SArray<T>::operator*= (T const& s){    for (size_t k = 0; k<size(); ++k) {        (*this)[k] *= s;    }    return *this;}