1
2 // Copyright 2015 Peter Dimov.
3 //
4 // Distributed under the Boost Software License, Version 1.0.
5 //
6 // See accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt
8
9
10 #include <boost/mp11/algorithm.hpp>
11 #include <boost/mp11/list.hpp>
12 #include <boost/mp11/utility.hpp>
13 #include <boost/core/lightweight_test_trait.hpp>
14 #include <type_traits>
15 #include <tuple>
16 #include <utility>
17
18 struct X1 {};
19 struct X2 {};
20 struct X3 {};
21 struct X4 {};
22
23 struct Y1 {};
24 struct Y2 {};
25 struct Y3 {};
26 struct Y4 {};
27
28 struct Z1 {};
29 struct Z2 {};
30 struct Z3 {};
31 struct Z4 {};
32
33 struct U1 {};
34 struct U2 {};
35
36 struct V1 {};
37 struct V2 {};
38
39 struct W1 {};
40 struct W2 {};
41
42 using boost::mp11::mp_quote;
43 using boost::mp11::mp_list;
44
45 template<class T> using add_pointer = typename std::add_pointer<T>::type;
46 using Q_add_pointer = mp_quote<add_pointer>;
47
48 template<class T, class U> using is_same = typename std::is_same<T, U>::type;
49 using Q_is_same = mp_quote<is_same>;
50
51 using Q_mp_list = mp_quote<mp_list>;
52 using Q_std_tuple = mp_quote<std::tuple>;
53 using Q_std_pair = mp_quote<std::pair>;
54
main()55 int main()
56 {
57 using boost::mp11::mp_transform_q;
58
59 using L1 = mp_list<X1, X2, X3, X4>;
60
61 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L1>, mp_list<mp_list<X1>, mp_list<X2>, mp_list<X3>, mp_list<X4>>>));
62 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L1>, mp_list<std::tuple<X1>, std::tuple<X2>, std::tuple<X3>, std::tuple<X4>>>));
63 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_add_pointer, L1>, mp_list<X1*, X2*, X3*, X4*>>));
64
65 using L2 = std::tuple<Y1, Y2, Y3, Y4>;
66
67 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L1, L2>, mp_list<mp_list<X1, Y1>, mp_list<X2, Y2>, mp_list<X3, Y3>, mp_list<X4, Y4>>>));
68 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L1, L2>, mp_list<std::tuple<X1, Y1>, std::tuple<X2, Y2>, std::tuple<X3, Y3>, std::tuple<X4, Y4>>>));
69 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_pair, L1, L2>, mp_list<std::pair<X1, Y1>, std::pair<X2, Y2>, std::pair<X3, Y3>, std::pair<X4, Y4>>>));
70
71 using L3 = mp_list<Z1, Z2, Z3, Z4>;
72
73 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L1, L2, L3>, mp_list<mp_list<X1, Y1, Z1>, mp_list<X2, Y2, Z2>, mp_list<X3, Y3, Z3>, mp_list<X4, Y4, Z4>>>));
74 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L1, L2, L3>, mp_list<std::tuple<X1, Y1, Z1>, std::tuple<X2, Y2, Z2>, std::tuple<X3, Y3, Z3>, std::tuple<X4, Y4, Z4>>>));
75
76 //
77
78 using L4 = std::tuple<X1, Y2, X3, Y4>;
79
80 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L1, L1>, mp_list<std::true_type, std::true_type, std::true_type, std::true_type>>));
81 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L1, L2>, mp_list<std::false_type, std::false_type, std::false_type, std::false_type>>));
82 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L1, L4>, mp_list<std::true_type, std::false_type, std::true_type, std::false_type>>));
83
84 //
85
86 using L5 = std::pair<X1, X2>;
87 using L6 = std::pair<Y1, Y2>;
88 using L7 = std::pair<X1, Y2>;
89
90 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L5>, std::pair<mp_list<X1>, mp_list<X2>>>));
91 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L5, L6>, std::pair<mp_list<X1, Y1>, mp_list<X2, Y2>>>));
92 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_mp_list, L5, L6, L7>, std::pair<mp_list<X1, Y1, X1>, mp_list<X2, Y2, Y2>>>));
93
94 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_add_pointer, L5>, std::pair<X1*, X2*>>));
95
96 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L5, L5>, std::pair<std::true_type, std::true_type>>));
97 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L5, L6>, std::pair<std::false_type, std::false_type>>));
98 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_is_same, L5, L7>, std::pair<std::true_type, std::false_type>>));
99
100 //
101
102 using L8 = std::pair<Z1, Z2>;
103 using L9 = std::pair<U1, U2>;
104 using L10 = std::pair<V1, V2>;
105 using L11 = std::pair<W1, W2>;
106
107 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L5, L6, L8, L9>, std::pair<std::tuple<X1, Y1, Z1, U1>, std::tuple<X2, Y2, Z2, U2>>>));
108 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L5, L6, L8, L9, L10>, std::pair<std::tuple<X1, Y1, Z1, U1, V1>, std::tuple<X2, Y2, Z2, U2, V2>>>));
109 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_q<Q_std_tuple, L5, L6, L8, L9, L10, L11>, std::pair<std::tuple<X1, Y1, Z1, U1, V1, W1>, std::tuple<X2, Y2, Z2, U2, V2, W2>>>));
110
111 //
112
113 return boost::report_errors();
114 }
115