flatten.cpp 2.1 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/sequence/io/out.hpp>
  9. #include <boost/fusion/sequence/comparison/equal_to.hpp>
  10. #include <boost/fusion/container/generation/make_vector.hpp>
  11. #include <boost/fusion/sequence/intrinsic/begin.hpp>
  12. #include <boost/fusion/sequence/intrinsic/end.hpp>
  13. #include <boost/fusion/sequence/intrinsic/at.hpp>
  14. #include <boost/fusion/sequence/intrinsic/size.hpp>
  15. #include <boost/fusion/iterator/advance.hpp>
  16. #include <boost/fusion/iterator/deref.hpp>
  17. #include <boost/fusion/iterator/distance.hpp>
  18. #include <boost/fusion/algorithm/auxiliary/copy.hpp>
  19. #include <boost/fusion/algorithm/transformation/flatten.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. BOOST_TEST((boost::fusion::size(flatten(seq)) == 5));
  27. }
  28. {
  29. typedef vector<int, int, vector<int, int>, int> sequence_type;
  30. sequence_type seq(1, 2, make_vector(3, 4), 5);
  31. std::cout << flatten(seq) << std::endl;
  32. BOOST_TEST((flatten(seq) == make_vector(1, 2, 3, 4, 5)));
  33. }
  34. {
  35. std::cout << flatten(make_vector(1, 2, make_vector(3, 4), 5)) << std::endl;
  36. BOOST_TEST((flatten(make_vector(1, 2, make_vector(3, 4), 5)) == make_vector(1, 2, 3, 4, 5)));
  37. }
  38. {
  39. typedef vector<int, int, vector<int, int>, int> sequence_type;
  40. sequence_type seq;
  41. result_of::flatten<sequence_type>::type flat(flatten(seq));
  42. copy(make_vector(1, 2, 3, 4, 5), flat);
  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. }