/* 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. */#include "exprops1.hpp"#include "exprscalar.hpp"#include "exprarray.hpp"#include "exprops2.hpp"#include <iostream>template <typename T>void print (T const& c){    for (int i=0; i<8; ++i) {        std::cout << c[i] << ' ';    }    std::cout << "..." << std::endl;}int main(){    Array<double> x(1000), y(1000);    // initialize arrays with some values    for (int i=0; i<1000; ++i) {        x[i] = i;        y[i] = x[i]+x[i];    }    //...        std::cout << "x: ";    print(x);    std::cout << "y: ";    print(y);    x = 1.2 * x;    std::cout << "x = 1.2 * x: ";    print(x);    x = 1.2*x + x*y;    std::cout << "1.2*x + x*y: ";    print(x);    x = y;    std::cout << "after x = y: ";    print(x);}