?? tuple1.cpp
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/* 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 "tuple1.hpp"#include <iostream>int main(){ // create and use tuple with only one field Tuple<int> t1; val<1>(t1) += 42; std::cout << t1.v1() << std::endl; // create and use duo Tuple<bool,int> t2; std::cout << val<1>(t2) << ", "; std::cout << t2.v1() << std::endl; // create and use triple Tuple<bool,int,double> t3; val<1>(t3) = true; val<2>(t3) = 42; val<3>(t3) = 0.2; std::cout << val<1>(t3) << ", "; std::cout << val<2>(t3) << ", "; std::cout << val<3>(t3) << std::endl; t3 = make_tuple(false, 23, 13.13); std::cout << val<1>(t3) << ", "; std::cout << val<2>(t3) << ", "; std::cout << val<3>(t3) << std::endl; // create and use quadruple Tuple<bool,int,float,double> t4(true,42,13,1.95583); std::cout << val<4>(t4) << std::endl; std::cout << t4.v2().v2().v2() << std::endl;}
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