| /*============================================================================= |
| 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(); |
| } |