169 lines
5.1 KiB
C++
169 lines
5.1 KiB
C++
/*=============================================================================
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Copyright (c) 2010 Christopher Schmidt
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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 <boost/detail/lightweight_test.hpp>
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#include <boost/fusion/adapted/struct/adapt_assoc_struct.hpp>
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#include <boost/fusion/sequence/intrinsic/at.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/fusion/sequence/intrinsic/empty.hpp>
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#include <boost/fusion/sequence/intrinsic/front.hpp>
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#include <boost/fusion/sequence/intrinsic/back.hpp>
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#include <boost/fusion/sequence/intrinsic/has_key.hpp>
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#include <boost/fusion/sequence/intrinsic/at_key.hpp>
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#include <boost/fusion/sequence/intrinsic/value_at_key.hpp>
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#include <boost/fusion/sequence/io/out.hpp>
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#include <boost/fusion/container/vector/vector.hpp>
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#include <boost/fusion/container/list/list.hpp>
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#include <boost/fusion/container/generation/make_vector.hpp>
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#include <boost/fusion/container/vector/convert.hpp>
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#include <boost/fusion/sequence/comparison/equal_to.hpp>
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#include <boost/fusion/sequence/comparison/not_equal_to.hpp>
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#include <boost/fusion/sequence/comparison/less.hpp>
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#include <boost/fusion/sequence/comparison/less_equal.hpp>
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#include <boost/fusion/sequence/comparison/greater.hpp>
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#include <boost/fusion/sequence/comparison/greater_equal.hpp>
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#include <boost/fusion/support/is_view.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/mpl/not.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/static_assert.hpp>
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#include <iostream>
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#include <string>
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namespace ns
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{
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struct x_member;
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struct y_member;
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struct z_member;
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struct non_member;
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template<typename X, typename Y, typename Z>
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struct point
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{
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X x;
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Y y;
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Z z;
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};
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}
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#if BOOST_PP_VARIADICS
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BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
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(X)(Y)(Z),
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(ns::point)(X)(Y)(Z),
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(int, x, ns::x_member)
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(auto, y, ns::y_member)
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(z, ns::z_member)
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)
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#else // BOOST_PP_VARIADICS
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BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
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(X)(Y)(Z),
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(ns::point)(X)(Y)(Z),
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(int, x, ns::x_member)
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(Y, y, ns::y_member)
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(auto, z, ns::z_member)
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)
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#endif
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template <typename TypeToConstruct>
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struct empty_struct_templated_factory {
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TypeToConstruct operator()() {
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return TypeToConstruct();
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}
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};
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BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
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(TypeToConstruct),
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(empty_struct_templated_factory)(TypeToConstruct),
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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::fusion;
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typedef ns::point<int,int,float> point;
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std::cout << tuple_open('[');
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std::cout << tuple_close(']');
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std::cout << tuple_delimiter(", ");
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{
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BOOST_MPL_ASSERT_NOT((traits::is_view<point>));
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BOOST_STATIC_ASSERT(!traits::is_view<point>::value);
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point p = {123, 456, 789.43f};
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std::cout << at_c<0>(p) << std::endl;
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std::cout << at_c<1>(p) << std::endl;
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std::cout << at_c<2>(p) << std::endl;
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std::cout << p << std::endl;
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BOOST_TEST(p == make_vector(123, 456, 789.43f));
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at_c<0>(p) = 6;
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at_c<1>(p) = 9;
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at_c<2>(p) = 12;
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BOOST_TEST(p == make_vector(6, 9, 12));
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BOOST_STATIC_ASSERT(boost::fusion::result_of::size<point>::value == 3);
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BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<point>::value);
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BOOST_TEST(front(p) == 6);
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BOOST_TEST(back(p) == 12);
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}
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{
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vector<int, float, int> v1(4, 2.f, 2);
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point v2 = {5, 3, 3.f};
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vector<long, double, float> v3(5, 4., 4.13f);
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BOOST_TEST(v1 < v2);
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BOOST_TEST(v1 <= v2);
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BOOST_TEST(v2 > v1);
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BOOST_TEST(v2 >= v1);
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BOOST_TEST(v2 < v3);
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BOOST_TEST(v2 <= v3);
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BOOST_TEST(v3 > v2);
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BOOST_TEST(v3 >= v2);
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}
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{
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// conversion from point to vector
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point p = {5, 3, 3.f};
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vector<int, long, int> v(p);
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v = p;
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}
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{
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// conversion from point to list
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point p = {5, 3, 3.f};
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list<int, long, int> l(p);
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l = p;
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}
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{
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// assoc stuff
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BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::x_member>));
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BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::y_member>));
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BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::z_member>));
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BOOST_MPL_ASSERT((boost::mpl::not_<boost::fusion::result_of::has_key<point, ns::non_member> >));
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BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::x_member>::type, int>));
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BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::y_member>::type, int>));
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BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::z_member>::type, float>));
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point p = {5, 3, 9.f};
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BOOST_TEST(at_key<ns::x_member>(p) == 5);
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BOOST_TEST(at_key<ns::y_member>(p) == 3);
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BOOST_TEST(at_key<ns::z_member>(p) == 9);
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}
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return boost::report_errors();
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}
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