ceph/src/boost/libs/fusion/test/sequence/adapt_adt_named.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2009 Joel de Guzman
   3
   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/adapted/adt/adapt_adt_named.hpp>
   9 #include <boost/fusion/sequence/intrinsic/at.hpp>
  10 #include <boost/fusion/sequence/intrinsic/size.hpp>
  11 #include <boost/fusion/sequence/intrinsic/empty.hpp>
  12 #include <boost/fusion/sequence/intrinsic/front.hpp>
  13 #include <boost/fusion/sequence/intrinsic/back.hpp>
  14 #include <boost/fusion/sequence/intrinsic/value_at.hpp>
  15 #include <boost/fusion/sequence/io/out.hpp>
  16 #include <boost/fusion/container/vector/vector.hpp>
  17 #include <boost/fusion/container/list/list.hpp>
  18 #include <boost/fusion/container/generation/make_vector.hpp>
  19 #include <boost/fusion/container/vector/convert.hpp>
  20 #include <boost/fusion/sequence/comparison/equal_to.hpp>
  21 #include <boost/fusion/sequence/comparison/not_equal_to.hpp>
  22 #include <boost/fusion/sequence/comparison/less.hpp>
  23 #include <boost/fusion/sequence/comparison/less_equal.hpp>
  24 #include <boost/fusion/sequence/comparison/greater.hpp>
  25 #include <boost/fusion/sequence/comparison/greater_equal.hpp>
  26 #include <boost/fusion/mpl.hpp>
  27 #include <boost/fusion/support/is_view.hpp>
  28 #include <boost/mpl/front.hpp>
  29 #include <boost/mpl/is_sequence.hpp>
  30 #include <boost/mpl/assert.hpp>
  31 #include <iostream>
  32 #include <string>
  33
  34 namespace ns
  35 {
  36     class point
  37     {
  38     public:
  39
  40         point() : x(0), y(0), z(0) {}
  41         point(int in_x, int in_y, int in_z) : x(in_x), y(in_y), z(in_z) {}
  42
  43         int get_x() const { return x; }
  44         int get_y() const { return y; }
  45         int get_z() const { return z; }
  46         void set_x(int x_) { x = x_; }
  47         void set_y(int y_) { y = y_; }
  48         void set_z(int z_) { z = z_; }
  49
  50     private:
  51
  52         int x;
  53         int y;
  54         int z;
  55     };
  56 }
  57
  58 #if BOOST_PP_VARIADICS
  59
  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     (obj.get_z(), obj.set_z(val))
  66 )
  67
  68 #else // BOOST_PP_VARIADICS
  69
  70 // this creates a fusion view: boost::fusion::adapted::point
  71 BOOST_FUSION_ADAPT_ADT_NAMED(
  72     ns::point, point,
  73     (int, int, obj.get_x(), obj.set_x(val))
  74     (int, int, obj.get_y(), obj.set_y(val))
  75     (auto, auto, obj.get_z(), obj.set_z(val))
  76 )
  77
  78 #endif // BOOST_PP_VARIADICS
  79
  80
  81 class empty_adt{};
  82 BOOST_FUSION_ADAPT_ADT_NAMED(empty_adt,renamed_empty_adt,)
  83
  84 int
  85 main()
  86 {
  87     using namespace boost::fusion;
  88     using namespace boost;
  89
  90     std::cout << tuple_open('[');
  91     std::cout << tuple_close(']');
  92     std::cout << tuple_delimiter(", ");
  93
  94     {
  95         BOOST_MPL_ASSERT((traits::is_view<adapted::point>));
  96         ns::point basep(123, 456, 789);
  97         adapted::point p(basep);
  98
  99         std::cout << at_c<0>(p) << std::endl;
 100         std::cout << at_c<1>(p) << std::endl;
 101         std::cout << at_c<2>(p) << std::endl;
 102         std::cout << p << std::endl;
 103         BOOST_TEST(p == make_vector(123, 456, 789));
 104
 105         at_c<0>(p) = 6;
 106         at_c<1>(p) = 9;
 107         at_c<2>(p) = 12;
 108         BOOST_TEST(p == make_vector(6, 9, 12));
 109
 110         BOOST_STATIC_ASSERT(boost::fusion::result_of::size<adapted::point>::value == 3);
 111         BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<adapted::point>::value);
 112
 113         BOOST_TEST(front(p) == 6);
 114         BOOST_TEST(back(p) == 12);
 115     }
 116
 117     {
 118         fusion::vector<int, float, int> v1(4, 2.f, 2);
 119         ns::point basep(5, 3, 3);
 120         adapted::point v2(basep);
 121
 122         fusion::vector<long, double, int> v3(5, 4., 4);
 123         BOOST_TEST(v1 < v2);
 124         BOOST_TEST(v1 <= v2);
 125         BOOST_TEST(v2 > v1);
 126         BOOST_TEST(v2 >= v1);
 127         BOOST_TEST(v2 < v3);
 128         BOOST_TEST(v2 <= v3);
 129         BOOST_TEST(v3 > v2);
 130         BOOST_TEST(v3 >= v2);
 131     }
 132
 133     {
 134         // conversion from ns::point to vector
 135         ns::point basep(5, 3, 3);
 136         adapted::point p(basep);
 137
 138         fusion::vector<int, long, int> v(p);
 139         v = p;
 140     }
 141
 142     {
 143         // conversion from ns::point to list
 144         ns::point basep(5, 3, 3);
 145         adapted::point p(basep);
 146
 147         fusion::list<int, long, float> l(p);
 148         l = p;
 149     }
 150
 151     {
 152         BOOST_MPL_ASSERT((mpl::is_sequence<adapted::point>));
 153         BOOST_MPL_ASSERT((boost::is_same<
 154             boost::fusion::result_of::value_at_c<adapted::point,0>::type
 155           , mpl::front<adapted::point>::type>));
 156     }
 157
 158     return boost::report_errors();
 159 }
 160