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