flatten_view.cpp 2.2 KB

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  1. /*==============================================================================
  2. Copyright (c) 2013 Jamboree
  3. Distributed under the Boost Software License, Version 1.0. (See accompanying
  4. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. ==============================================================================*/
  6. #include <boost/detail/lightweight_test.hpp>
  7. #include <boost/fusion/container/vector/vector.hpp>
  8. #include <boost/fusion/view/flatten_view/flatten_view.hpp>
  9. #include <boost/fusion/sequence/io/out.hpp>
  10. #include <boost/fusion/sequence/comparison/equal_to.hpp>
  11. #include <boost/fusion/container/generation/make_vector.hpp>
  12. #include <boost/fusion/sequence/intrinsic/begin.hpp>
  13. #include <boost/fusion/sequence/intrinsic/end.hpp>
  14. #include <boost/fusion/sequence/intrinsic/at.hpp>
  15. #include <boost/fusion/sequence/intrinsic/size.hpp>
  16. #include <boost/fusion/iterator/advance.hpp>
  17. #include <boost/fusion/iterator/deref.hpp>
  18. #include <boost/fusion/iterator/distance.hpp>
  19. #include <boost/fusion/algorithm/auxiliary/copy.hpp>
  20. int main()
  21. {
  22. using namespace boost::fusion;
  23. {
  24. typedef vector<int, int, vector<int, int>, int> sequence_type;
  25. sequence_type seq(1, 2, make_vector(3, 4), 5);
  26. flatten_view<sequence_type> flattened(seq);
  27. BOOST_TEST((boost::fusion::size(flattened) == 5));
  28. BOOST_TEST((boost::fusion::distance(boost::fusion::begin(flattened), boost::fusion::end(flattened)) == 5));
  29. }
  30. {
  31. typedef vector<int, int, vector<int, int>, int> sequence_type;
  32. sequence_type seq(1, 2, make_vector(3, 4), 5);
  33. flatten_view<sequence_type> flattened(seq);
  34. std::cout << flattened << std::endl;
  35. BOOST_TEST((flattened == make_vector(1, 2, 3, 4, 5)));
  36. BOOST_TEST((*advance_c<2>(boost::fusion::begin(flattened)) == 3));
  37. }
  38. {
  39. typedef vector<int, int, vector<int, int>, int> sequence_type;
  40. sequence_type seq;
  41. flatten_view<sequence_type> flattened(seq);
  42. copy(make_vector(1, 2, 3, 4, 5), flattened);
  43. std::cout << seq << std::endl;
  44. BOOST_TEST((seq == make_vector(1, 2, make_vector(3, 4), 5)));
  45. }
  46. return boost::report_errors();
  47. }