/*============================================================================= Copyright (c) 2001-2009 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include namespace ns { class point { public: point() : x(0), y(0), z(0) {} point(int in_x, int in_y, int in_z) : x(in_x), y(in_y), z(in_z) {} int get_x() const { return x; } int get_y() const { return y; } int get_z() const { return z; } void set_x(int x_) { x = x_; } void set_y(int y_) { y = y_; } void set_z(int z_) { z = z_; } private: int x; int y; int z; }; } #if BOOST_PP_VARIADICS // this creates a fusion view: boost::fusion::adapted::point BOOST_FUSION_ADAPT_ADT_NAMED( ns::point, point, (int, int, obj.get_x(), obj.set_x(val)) (int, int, obj.get_y(), obj.set_y(val)) (obj.get_z(), obj.set_z(val)) ) #else // BOOST_PP_VARIADICS // this creates a fusion view: boost::fusion::adapted::point BOOST_FUSION_ADAPT_ADT_NAMED( ns::point, point, (int, int, obj.get_x(), obj.set_x(val)) (int, int, obj.get_y(), obj.set_y(val)) (auto, auto, obj.get_z(), obj.set_z(val)) ) #endif // BOOST_PP_VARIADICS class empty_adt{}; BOOST_FUSION_ADAPT_ADT_NAMED(empty_adt,renamed_empty_adt,) int main() { using namespace boost::fusion; using namespace boost; std::cout << tuple_open('['); std::cout << tuple_close(']'); std::cout << tuple_delimiter(", "); { BOOST_MPL_ASSERT((traits::is_view)); BOOST_STATIC_ASSERT(traits::is_view::value); ns::point basep(123, 456, 789); adapted::point p(basep); std::cout << at_c<0>(p) << std::endl; std::cout << at_c<1>(p) << std::endl; std::cout << at_c<2>(p) << std::endl; std::cout << p << std::endl; BOOST_TEST(p == make_vector(123, 456, 789)); at_c<0>(p) = 6; at_c<1>(p) = 9; at_c<2>(p) = 12; BOOST_TEST(p == make_vector(6, 9, 12)); BOOST_STATIC_ASSERT(boost::fusion::result_of::size::value == 3); BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty::value); BOOST_TEST(front(p) == 6); BOOST_TEST(back(p) == 12); } { fusion::vector v1(4, 2.f, 2); ns::point basep(5, 3, 3); adapted::point v2(basep); fusion::vector v3(5, 4., 4); BOOST_TEST(v1 < v2); BOOST_TEST(v1 <= v2); BOOST_TEST(v2 > v1); BOOST_TEST(v2 >= v1); BOOST_TEST(v2 < v3); BOOST_TEST(v2 <= v3); BOOST_TEST(v3 > v2); BOOST_TEST(v3 >= v2); } { // conversion from ns::point to vector ns::point basep(5, 3, 3); adapted::point p(basep); fusion::vector v(p); v = p; } { // conversion from ns::point to list ns::point basep(5, 3, 3); adapted::point p(basep); fusion::list l(p); l = p; } { BOOST_MPL_ASSERT((mpl::is_sequence)); BOOST_MPL_ASSERT((boost::is_same< boost::fusion::result_of::value_at_c::type , mpl::front::type>)); } return boost::report_errors(); }