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- /*=============================================================================
- Copyright (c) 2016 Kohei Takahashi
- 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 <boost/detail/lightweight_test.hpp>
- #include <boost/fusion/container.hpp>
- #include <boost/fusion/sequence.hpp>
- #include <boost/fusion/sequence/io/out.hpp>
- #include <boost/fusion/iterator/equal_to.hpp>
- #include <boost/fusion/adapted/struct/define_struct.hpp>
- #include <boost/mpl/assert.hpp>
- #include <boost/mpl/is_sequence.hpp>
- #include <boost/static_assert.hpp>
- #include <iostream>
- BOOST_FUSION_DEFINE_STRUCT(BOOST_PP_EMPTY(), empty_struct, )
- int
- main()
- {
- using namespace boost;
- using namespace boost::fusion;
- std::cout << tuple_open('[');
- std::cout << tuple_close(']');
- std::cout << tuple_delimiter(", ");
- {
- BOOST_MPL_ASSERT_NOT((traits::is_view<empty_struct>));
- BOOST_STATIC_ASSERT(!traits::is_view<empty_struct>::value);
- empty_struct e;
- std::cout << e << std::endl;
- BOOST_TEST(e == make_vector());
- BOOST_STATIC_ASSERT(fusion::result_of::size<empty_struct>::value == 0);
- BOOST_STATIC_ASSERT(fusion::result_of::empty<empty_struct>::value);
- }
- {
- vector<> v;
- empty_struct e;
- BOOST_TEST(v == e);
- BOOST_TEST_NOT(v != e);
- BOOST_TEST_NOT(v < e);
- BOOST_TEST(v <= e);
- BOOST_TEST_NOT(v > e);
- BOOST_TEST(v >= e);
- }
- {
- empty_struct e;
- // conversion from empty_struct to vector
- vector<> v(e);
- v = e;
- // conversion from empty_struct to list
- //list<> l(e);
- //l = e;
- }
- { // begin/end
- typedef fusion::result_of::begin<empty_struct>::type b;
- typedef fusion::result_of::end<empty_struct>::type e;
- BOOST_MPL_ASSERT((fusion::result_of::equal_to<b, e>));
- }
- BOOST_MPL_ASSERT((mpl::is_sequence<empty_struct>));
- return boost::report_errors();
- }
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