filter.cpp 1.4 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  3. Copyright (c) 2005-2006 Dan Marsden
  4. Distributed under the Boost Software License, Version 1.0. (See accompanying
  5. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  6. ==============================================================================*/
  7. #include <boost/detail/lightweight_test.hpp>
  8. #include <boost/fusion/container/vector/vector.hpp>
  9. #include <boost/fusion/adapted/mpl.hpp>
  10. #include <boost/fusion/sequence/io/out.hpp>
  11. #include <boost/fusion/container/generation/make_vector.hpp>
  12. #include <boost/fusion/sequence/comparison/equal_to.hpp>
  13. #include <boost/fusion/algorithm/transformation/filter.hpp>
  14. #include <boost/mpl/vector.hpp>
  15. int
  16. main()
  17. {
  18. using namespace boost::fusion;
  19. std::cout << tuple_open('[');
  20. std::cout << tuple_close(']');
  21. std::cout << tuple_delimiter(", ");
  22. typedef boost::fusion::vector<char,double,char> vector_type;
  23. vector_type t('a', 6.6, 'b');
  24. {
  25. std::cout << filter<char>(t) << std::endl;
  26. BOOST_TEST((filter<char>(t)
  27. == make_vector('a', 'b')));
  28. }
  29. {
  30. typedef boost::mpl::vector<char,double,char> mpl_vec;
  31. BOOST_TEST((filter<char>(mpl_vec())
  32. == make_vector('\0', '\0')));
  33. }
  34. return boost::report_errors();
  35. }