1 /*=============================================================================
2 Copyright (c) 2010 Christopher Schmidt
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/struct/adapt_assoc_struct.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/has_key.hpp>
15 #include <boost/fusion/sequence/intrinsic/at_key.hpp>
16 #include <boost/fusion/sequence/intrinsic/value_at_key.hpp>
17 #include <boost/fusion/sequence/io/out.hpp>
18 #include <boost/fusion/container/vector/vector.hpp>
19 #include <boost/fusion/container/list/list.hpp>
20 #include <boost/fusion/container/generation/make_vector.hpp>
21 #include <boost/fusion/container/vector/convert.hpp>
22 #include <boost/fusion/sequence/comparison/equal_to.hpp>
23 #include <boost/fusion/sequence/comparison/not_equal_to.hpp>
24 #include <boost/fusion/sequence/comparison/less.hpp>
25 #include <boost/fusion/sequence/comparison/less_equal.hpp>
26 #include <boost/fusion/sequence/comparison/greater.hpp>
27 #include <boost/fusion/sequence/comparison/greater_equal.hpp>
28 #include <boost/fusion/support/is_view.hpp>
29 #include <boost/mpl/assert.hpp>
30 #include <boost/mpl/not.hpp>
31 #include <boost/type_traits/is_same.hpp>
32 #include <boost/static_assert.hpp>
33 #include <iostream>
34 #include <string>
35
36 namespace ns
37 {
38 struct x_member;
39 struct y_member;
40 struct z_member;
41
42 struct non_member;
43
44 template<typename X, typename Y, typename Z>
45 struct point
46 {
47 X x;
48 Y y;
49 Z z;
50 };
51 }
52
53 #if BOOST_PP_VARIADICS
54 BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
55 (X)(Y)(Z),
56 (ns::point)(X)(Y)(Z),
57 (int, x, ns::x_member)
58 (auto, y, ns::y_member)
59 (z, ns::z_member)
60 )
61
62 #else // BOOST_PP_VARIADICS
63 BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
64 (X)(Y)(Z),
65 (ns::point)(X)(Y)(Z),
66 (int, x, ns::x_member)
67 (Y, y, ns::y_member)
68 (auto, z, ns::z_member)
69 )
70 #endif
71
72 template <typename TypeToConstruct>
73 struct empty_struct_templated_factory {
74
operator ()empty_struct_templated_factory75 TypeToConstruct operator()() {
76 return TypeToConstruct();
77 }
78
79 };
80
81 BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT(
82 (TypeToConstruct),
83 (empty_struct_templated_factory)(TypeToConstruct),
84 )
85
86 int
main()87 main()
88 {
89 using namespace boost::fusion;
90
91 typedef ns::point<int,int,float> point;
92
93 std::cout << tuple_open('[');
94 std::cout << tuple_close(']');
95 std::cout << tuple_delimiter(", ");
96
97 {
98 BOOST_MPL_ASSERT_NOT((traits::is_view<point>));
99 BOOST_STATIC_ASSERT(!traits::is_view<point>::value);
100 point p = {123, 456, 789.43f};
101
102 std::cout << at_c<0>(p) << std::endl;
103 std::cout << at_c<1>(p) << std::endl;
104 std::cout << at_c<2>(p) << std::endl;
105 std::cout << p << std::endl;
106 BOOST_TEST(p == make_vector(123, 456, 789.43f));
107
108 at_c<0>(p) = 6;
109 at_c<1>(p) = 9;
110 at_c<2>(p) = 12;
111 BOOST_TEST(p == make_vector(6, 9, 12));
112
113 BOOST_STATIC_ASSERT(boost::fusion::result_of::size<point>::value == 3);
114 BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<point>::value);
115
116 BOOST_TEST(front(p) == 6);
117 BOOST_TEST(back(p) == 12);
118 }
119
120 {
121 vector<int, float, int> v1(4, 2.f, 2);
122 point v2 = {5, 3, 3.f};
123 vector<long, double, float> v3(5, 4., 4.13f);
124 BOOST_TEST(v1 < v2);
125 BOOST_TEST(v1 <= v2);
126 BOOST_TEST(v2 > v1);
127 BOOST_TEST(v2 >= v1);
128 BOOST_TEST(v2 < v3);
129 BOOST_TEST(v2 <= v3);
130 BOOST_TEST(v3 > v2);
131 BOOST_TEST(v3 >= v2);
132 }
133
134 {
135 // conversion from point to vector
136 point p = {5, 3, 3.f};
137 vector<int, long, int> v(p);
138 v = p;
139 }
140
141 {
142 // conversion from point to list
143 point p = {5, 3, 3.f};
144 list<int, long, int> l(p);
145 l = p;
146 }
147
148 {
149 // assoc stuff
150 BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::x_member>));
151 BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::y_member>));
152 BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<point, ns::z_member>));
153 BOOST_MPL_ASSERT((boost::mpl::not_<boost::fusion::result_of::has_key<point, ns::non_member> >));
154
155 BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::x_member>::type, int>));
156 BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::y_member>::type, int>));
157 BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<point, ns::z_member>::type, float>));
158
159 point p = {5, 3, 9.f};
160
161 BOOST_TEST(at_key<ns::x_member>(p) == 5);
162 BOOST_TEST(at_key<ns::y_member>(p) == 3);
163 BOOST_TEST(at_key<ns::z_member>(p) == 9);
164 }
165
166 return boost::report_errors();
167 }
168
169