adapt_adt_named.cpp 4.7 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2009 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/adapted/adt/adapt_adt_named.hpp>
  8. #include <boost/fusion/sequence/intrinsic/at.hpp>
  9. #include <boost/fusion/sequence/intrinsic/size.hpp>
  10. #include <boost/fusion/sequence/intrinsic/empty.hpp>
  11. #include <boost/fusion/sequence/intrinsic/front.hpp>
  12. #include <boost/fusion/sequence/intrinsic/back.hpp>
  13. #include <boost/fusion/sequence/intrinsic/value_at.hpp>
  14. #include <boost/fusion/sequence/io/out.hpp>
  15. #include <boost/fusion/container/vector/vector.hpp>
  16. #include <boost/fusion/container/list/list.hpp>
  17. #include <boost/fusion/container/generation/make_vector.hpp>
  18. #include <boost/fusion/container/vector/convert.hpp>
  19. #include <boost/fusion/sequence/comparison/equal_to.hpp>
  20. #include <boost/fusion/sequence/comparison/not_equal_to.hpp>
  21. #include <boost/fusion/sequence/comparison/less.hpp>
  22. #include <boost/fusion/sequence/comparison/less_equal.hpp>
  23. #include <boost/fusion/sequence/comparison/greater.hpp>
  24. #include <boost/fusion/sequence/comparison/greater_equal.hpp>
  25. #include <boost/fusion/mpl.hpp>
  26. #include <boost/fusion/support/is_view.hpp>
  27. #include <boost/mpl/front.hpp>
  28. #include <boost/mpl/is_sequence.hpp>
  29. #include <boost/mpl/assert.hpp>
  30. #include <iostream>
  31. #include <string>
  32. namespace ns
  33. {
  34. class point
  35. {
  36. public:
  37. point() : x(0), y(0), z(0) {}
  38. point(int in_x, int in_y, int in_z) : x(in_x), y(in_y), z(in_z) {}
  39. int get_x() const { return x; }
  40. int get_y() const { return y; }
  41. int get_z() const { return z; }
  42. void set_x(int x_) { x = x_; }
  43. void set_y(int y_) { y = y_; }
  44. void set_z(int z_) { z = z_; }
  45. private:
  46. int x;
  47. int y;
  48. int z;
  49. };
  50. }
  51. #if BOOST_PP_VARIADICS
  52. // this creates a fusion view: boost::fusion::adapted::point
  53. BOOST_FUSION_ADAPT_ADT_NAMED(
  54. ns::point, point,
  55. (int, int, obj.get_x(), obj.set_x(val))
  56. (int, int, obj.get_y(), obj.set_y(val))
  57. (obj.get_z(), obj.set_z(val))
  58. )
  59. #else // BOOST_PP_VARIADICS
  60. // this creates a fusion view: boost::fusion::adapted::point
  61. BOOST_FUSION_ADAPT_ADT_NAMED(
  62. ns::point, point,
  63. (int, int, obj.get_x(), obj.set_x(val))
  64. (int, int, obj.get_y(), obj.set_y(val))
  65. (auto, auto, obj.get_z(), obj.set_z(val))
  66. )
  67. #endif // BOOST_PP_VARIADICS
  68. class empty_adt{};
  69. BOOST_FUSION_ADAPT_ADT_NAMED(empty_adt,renamed_empty_adt,)
  70. int
  71. main()
  72. {
  73. using namespace boost::fusion;
  74. using namespace boost;
  75. std::cout << tuple_open('[');
  76. std::cout << tuple_close(']');
  77. std::cout << tuple_delimiter(", ");
  78. {
  79. BOOST_MPL_ASSERT((traits::is_view<adapted::point>));
  80. BOOST_STATIC_ASSERT(traits::is_view<adapted::point>::value);
  81. ns::point basep(123, 456, 789);
  82. adapted::point p(basep);
  83. std::cout << at_c<0>(p) << std::endl;
  84. std::cout << at_c<1>(p) << std::endl;
  85. std::cout << at_c<2>(p) << std::endl;
  86. std::cout << p << std::endl;
  87. BOOST_TEST(p == make_vector(123, 456, 789));
  88. at_c<0>(p) = 6;
  89. at_c<1>(p) = 9;
  90. at_c<2>(p) = 12;
  91. BOOST_TEST(p == make_vector(6, 9, 12));
  92. BOOST_STATIC_ASSERT(boost::fusion::result_of::size<adapted::point>::value == 3);
  93. BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<adapted::point>::value);
  94. BOOST_TEST(front(p) == 6);
  95. BOOST_TEST(back(p) == 12);
  96. }
  97. {
  98. fusion::vector<int, float, int> v1(4, 2.f, 2);
  99. ns::point basep(5, 3, 3);
  100. adapted::point v2(basep);
  101. fusion::vector<long, double, int> v3(5, 4., 4);
  102. BOOST_TEST(v1 < v2);
  103. BOOST_TEST(v1 <= v2);
  104. BOOST_TEST(v2 > v1);
  105. BOOST_TEST(v2 >= v1);
  106. BOOST_TEST(v2 < v3);
  107. BOOST_TEST(v2 <= v3);
  108. BOOST_TEST(v3 > v2);
  109. BOOST_TEST(v3 >= v2);
  110. }
  111. {
  112. // conversion from ns::point to vector
  113. ns::point basep(5, 3, 3);
  114. adapted::point p(basep);
  115. fusion::vector<int, long, int> v(p);
  116. v = p;
  117. }
  118. {
  119. // conversion from ns::point to list
  120. ns::point basep(5, 3, 3);
  121. adapted::point p(basep);
  122. fusion::list<int, long, float> l(p);
  123. l = p;
  124. }
  125. {
  126. BOOST_MPL_ASSERT((mpl::is_sequence<adapted::point>));
  127. BOOST_MPL_ASSERT((boost::is_same<
  128. boost::fusion::result_of::value_at_c<adapted::point,0>::type
  129. , mpl::front<adapted::point>::type>));
  130. }
  131. return boost::report_errors();
  132. }