76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2007 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <iostream>
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#include <string>
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#include <cmath>
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/phoenix/core.hpp>
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#include <boost/phoenix/operator.hpp>
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#include <boost/phoenix/scope/dynamic.hpp>
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struct my_dynamic : ::boost::phoenix::dynamic<int, std::string, double>
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{
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my_dynamic() : num(init<0>(this)), message(init<1>(this)), real(init<2>(this)) {}
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member1 num;
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member2 message;
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member3 real;
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};
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// You may also use the macro below to achieve the same as above:
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//
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//BOOST_PHOENIX_DYNAMIC(
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// my_dynamic,
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// (int, num)
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// (std::string, message)
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// (double, real)
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//);
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int
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main()
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{
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using namespace boost::phoenix;
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using namespace boost::phoenix::arg_names;
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my_dynamic clos;
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{ // First stack frame
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dynamic_frame<my_dynamic::self_type> frame(clos);
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(clos.num = 123)();
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(clos.num += 456)();
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(clos.real = clos.num / 56.5)();
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(clos.message = "Hello " + std::string("World "))();
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{ // Second stack frame
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dynamic_frame<my_dynamic::self_type> frame(clos);
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(clos.num = 987)();
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(clos.message = std::string("Abracadabra "))();
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(clos.real = clos.num * 1e30)();
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{ // Third stack frame
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boost::phoenix::vector3<int, std::string, double> init = {-1, "Direct Init ", 3.14};
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dynamic_frame<my_dynamic::self_type> frame(clos, init);
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(std::cout << clos.message << clos.num << ", " << clos.real << '\n')();
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BOOST_TEST(clos.num() == -1);
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BOOST_TEST(clos.message() == "Direct Init ");
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}
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(std::cout << clos.message << clos.num << ", " << clos.real << '\n')();
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BOOST_TEST(clos.num() == 987);
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BOOST_TEST(clos.message() == "Abracadabra ");
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}
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(std::cout << clos.message << clos.num << ", " << clos.real << '\n')();
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BOOST_TEST(clos.num() == 123+456);
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BOOST_TEST(clos.message() == "Hello " + std::string("World "));
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}
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return boost::report_errors();
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}
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