?? compose2.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 <iostream>#include "math1.hpp"#include "compose1.hpp"#include "composeconv.hpp"template<typename FO>void print_values (FO fo) { for (int i=-2; i<3; ++i) { std::cout << "f(" << i*0.1 << ") = " << fo(i*0.1) << "\n"; }}int main(){ // print sin(abs(-0.5)) std::cout << compose(Abs(),Sine())(0.5) << "\n\n"; // print abs() of some values print_values(Abs()); std::cout << '\n'; // print sin() of some values print_values(Sine()); std::cout << '\n'; // print sin(abs()) of some values print_values(compose(Abs(),Sine())); std::cout << '\n'; // print abs(sin()) of some values print_values(compose(Sine(),Abs()));}
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