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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/sequence.hpp> | |
9 | #include <boost/fusion/support.hpp> | |
10 | #include <boost/fusion/container/list.hpp> | |
11 | #include <boost/fusion/container/vector.hpp> | |
12 | #include <boost/fusion/container/generation/make_vector.hpp> | |
13 | #include <boost/fusion/adapted/adt/adapt_assoc_adt.hpp> | |
14 | #include <boost/mpl/assert.hpp> | |
15 | #include <boost/mpl/not.hpp> | |
16 | #include <boost/mpl/front.hpp> | |
17 | #include <boost/mpl/is_sequence.hpp> | |
18 | #include <boost/type_traits/is_same.hpp> | |
19 | #include <boost/static_assert.hpp> | |
20 | #include <iostream> | |
21 | #include <string> | |
22 | ||
23 | namespace ns | |
24 | { | |
25 | struct x_member; | |
26 | struct y_member; | |
27 | struct z_member; | |
28 | ||
29 | struct non_member; | |
30 | ||
31 | class point | |
32 | { | |
33 | public: | |
34 | ||
35 | point() : x(0), y(0), z(0) {} | |
36 | point(int in_x, int in_y, int in_z) : x(in_x), y(in_y), z(in_z) {} | |
37 | ||
38 | int get_x() const { return x; } | |
39 | int get_y() const { return y; } | |
40 | int get_z() const { return z; } | |
41 | void set_x(int x_) { x = x_; } | |
42 | void set_y(int y_) { y = y_; } | |
43 | void set_z(int z_) { z = z_; } | |
44 | ||
45 | private: | |
46 | ||
47 | int x; | |
48 | int y; | |
49 | int z; | |
50 | }; | |
51 | } | |
52 | ||
53 | #if BOOST_PP_VARIADICS | |
54 | ||
55 | BOOST_FUSION_ADAPT_ASSOC_ADT( | |
56 | ns::point, | |
57 | (int, int, obj.get_x(), obj.set_x(val), ns::x_member) | |
58 | (int, int, obj.get_y(), obj.set_y(val), ns::y_member) | |
59 | (obj.get_z(), obj.set_z(val), ns::z_member) | |
60 | ) | |
61 | ||
62 | #else // BOOST_PP_VARIADICS | |
63 | ||
64 | BOOST_FUSION_ADAPT_ASSOC_ADT( | |
65 | ns::point, | |
66 | (int, int, obj.get_x(), obj.set_x(val), ns::x_member) | |
67 | (int, int, obj.get_y(), obj.set_y(val), ns::y_member) | |
68 | (auto, auto, obj.get_z(), obj.set_z(val), ns::z_member) | |
69 | ) | |
70 | ||
71 | #endif | |
72 | ||
73 | class empty_adt{}; | |
74 | BOOST_FUSION_ADAPT_ASSOC_ADT(empty_adt,) | |
75 | ||
76 | int | |
77 | main() | |
78 | { | |
79 | using namespace boost::fusion; | |
80 | ||
81 | std::cout << tuple_open('['); | |
82 | std::cout << tuple_close(']'); | |
83 | std::cout << tuple_delimiter(", "); | |
84 | ||
85 | { | |
86 | BOOST_MPL_ASSERT_NOT((traits::is_view<ns::point>)); | |
87 | BOOST_STATIC_ASSERT(!traits::is_view<ns::point>::value); | |
88 | ns::point p(123, 456, 789); | |
89 | ||
90 | std::cout << at_c<0>(p) << std::endl; | |
91 | std::cout << at_c<1>(p) << std::endl; | |
92 | std::cout << at_c<2>(p) << std::endl; | |
93 | std::cout << p << std::endl; | |
94 | BOOST_TEST(p == make_vector(123, 456, 789)); | |
95 | ||
96 | at_c<0>(p) = 6; | |
97 | at_c<1>(p) = 9; | |
98 | at_c<2>(p) = 12; | |
99 | BOOST_TEST(p == make_vector(6, 9, 12)); | |
100 | ||
101 | BOOST_STATIC_ASSERT(boost::fusion::result_of::size<ns::point>::value == 3); | |
102 | BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<ns::point>::value); | |
103 | ||
104 | BOOST_TEST(front(p) == 6); | |
105 | BOOST_TEST(back(p) == 12); | |
106 | } | |
107 | ||
108 | { | |
109 | boost::fusion::vector<int, float, int> v1(4, 2.f, 2); | |
110 | ns::point v2(5, 3, 3); | |
111 | boost::fusion::vector<long, double, int> v3(5, 4., 4); | |
112 | BOOST_TEST(v1 < v2); | |
113 | BOOST_TEST(v1 <= v2); | |
114 | BOOST_TEST(v2 > v1); | |
115 | BOOST_TEST(v2 >= v1); | |
116 | BOOST_TEST(v2 < v3); | |
117 | BOOST_TEST(v2 <= v3); | |
118 | BOOST_TEST(v3 > v2); | |
119 | BOOST_TEST(v3 >= v2); | |
120 | } | |
121 | ||
122 | { | |
123 | // conversion from ns::point to vector | |
124 | ns::point p(5, 3, 3); | |
125 | boost::fusion::vector<int, long, int> v(p); | |
126 | v = p; | |
127 | } | |
128 | ||
129 | { | |
130 | // conversion from ns::point to list | |
131 | ns::point p(5, 3, 3); | |
132 | boost::fusion::list<int, long, int> l(p); | |
133 | l = p; | |
134 | } | |
135 | ||
136 | { | |
137 | BOOST_MPL_ASSERT((boost::mpl::is_sequence<ns::point>)); | |
138 | BOOST_MPL_ASSERT((boost::is_same< | |
139 | boost::fusion::result_of::value_at_c<ns::point,0>::type | |
140 | , boost::mpl::front<ns::point>::type>)); | |
141 | } | |
142 | ||
143 | { | |
144 | // assoc stuff | |
145 | BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<ns::point, ns::x_member>)); | |
146 | BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<ns::point, ns::y_member>)); | |
147 | BOOST_MPL_ASSERT((boost::fusion::result_of::has_key<ns::point, ns::z_member>)); | |
148 | BOOST_MPL_ASSERT((boost::mpl::not_<boost::fusion::result_of::has_key<ns::point, ns::non_member> >)); | |
149 | ||
150 | ||
151 | BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::x_member>::type, int>)); | |
152 | BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::y_member>::type, int>)); | |
153 | BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::z_member>::type, int>)); | |
154 | ||
155 | ns::point p(5, 3, 1); | |
156 | ||
157 | BOOST_TEST(at_key<ns::x_member>(p) == 5); | |
158 | BOOST_TEST(at_key<ns::y_member>(p) == 3); | |
159 | BOOST_TEST(at_key<ns::z_member>(p) == 1); | |
160 | } | |
161 | ||
162 | return boost::report_errors(); | |
163 | } | |
164 |