erase_key.cpp 2.5 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  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/set/set.hpp>
  8. #include <boost/fusion/container/generation/make_set.hpp>
  9. #include <boost/fusion/container/map/map.hpp>
  10. #include <boost/fusion/container/generation/make_map.hpp>
  11. #include <boost/fusion/sequence/comparison/equal_to.hpp>
  12. #include <boost/fusion/container/vector/convert.hpp>
  13. #include <boost/fusion/container/set/convert.hpp>
  14. #include <boost/fusion/container/map/convert.hpp>
  15. #include <boost/fusion/container/generation/make_vector.hpp>
  16. #include <boost/fusion/sequence/intrinsic/size.hpp>
  17. #include <boost/fusion/iterator/deref.hpp>
  18. #include <boost/fusion/algorithm/transformation/erase_key.hpp>
  19. #include <boost/fusion/algorithm/query/find.hpp>
  20. #include <boost/fusion/sequence/io/out.hpp>
  21. #include <boost/fusion/support/pair.hpp>
  22. #include <boost/static_assert.hpp>
  23. #include <iostream>
  24. #include <string>
  25. template <typename Set>
  26. void test_set(Set const& set)
  27. {
  28. using namespace boost::fusion;
  29. std::cout << set << std::endl;
  30. BOOST_STATIC_ASSERT(boost::fusion::result_of::size<Set>::value == 3);
  31. BOOST_TEST((*find<int>(set) == 1));
  32. BOOST_TEST((*find<double>(set) == 1.5));
  33. BOOST_TEST((*find<std::string>(set) == "hello"));
  34. }
  35. typedef boost::mpl::int_<1> _1;
  36. typedef boost::mpl::int_<2> _2;
  37. typedef boost::mpl::int_<3> _3;
  38. typedef boost::mpl::int_<4> _4;
  39. template <typename Map>
  40. void test_map(Map const& map)
  41. {
  42. using namespace boost::fusion;
  43. std::cout << map << std::endl;
  44. BOOST_STATIC_ASSERT(boost::fusion::result_of::size<Map>::value == 3);
  45. BOOST_TEST(((*find<_1>(map)).second == 1));
  46. BOOST_TEST(((*find<_3>(map)).second == 1.5));
  47. BOOST_TEST(((*find<_4>(map)).second == std::string("hello")));
  48. }
  49. int
  50. main()
  51. {
  52. using namespace boost::fusion;
  53. using namespace boost;
  54. using namespace std;
  55. using boost::fusion::pair;
  56. using boost::fusion::make_pair;
  57. std::cout << tuple_open('[');
  58. std::cout << tuple_close(']');
  59. std::cout << tuple_delimiter(", ");
  60. test_set(erase_key<char>(make_set(1, 'x', 1.5, std::string("hello"))));
  61. test_map(erase_key<_2>(make_map<_1, _2, _3, _4>(1, 'x', 1.5, "hello")));
  62. return boost::report_errors();
  63. }