1
2 // Copyright 2015, 2017, 2019 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/list.hpp>
11 #include <boost/mp11/utility.hpp>
12 #include <boost/core/lightweight_test_trait.hpp>
13 #include <type_traits>
14 #include <tuple>
15 #include <utility>
16
17 struct X1 {};
18 struct X2 {};
19 struct X3 {};
20 struct X4 {};
21
22 template<class T> using add_pointer_t = T*;
23 using Q_add_pointer = boost::mp11::mp_quote_trait<std::add_pointer>;
24
main()25 int main()
26 {
27 using boost::mp11::mp_list;
28 using boost::mp11::mp_transform_front;
29 using boost::mp11::mp_transform_first;
30 using boost::mp11::mp_transform_front_q;
31 using boost::mp11::mp_transform_first_q;
32
33 {
34 using L1 = mp_list<X1>;
35
36 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L1, add_pointer_t>, mp_list<X1*>>));
37 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L1, add_pointer_t>, mp_list<X1*>>));
38
39 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L1, Q_add_pointer>, mp_list<X1*>>));
40 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L1, Q_add_pointer>, mp_list<X1*>>));
41
42 using L2 = mp_list<X1, X2>;
43
44 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L2, add_pointer_t>, mp_list<X1*, X2>>));
45 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L2, add_pointer_t>, mp_list<X1*, X2>>));
46
47 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L2, Q_add_pointer>, mp_list<X1*, X2>>));
48 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L2, Q_add_pointer>, mp_list<X1*, X2>>));
49
50 using L3 = mp_list<X1, X2, X3>;
51
52 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L3, add_pointer_t>, mp_list<X1*, X2, X3>>));
53 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L3, add_pointer_t>, mp_list<X1*, X2, X3>>));
54
55 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L3, Q_add_pointer>, mp_list<X1*, X2, X3>>));
56 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L3, Q_add_pointer>, mp_list<X1*, X2, X3>>));
57
58 using L4 = mp_list<X1, X2, X3, X4>;
59
60 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L4, add_pointer_t>, mp_list<X1*, X2, X3, X4>>));
61 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L4, add_pointer_t>, mp_list<X1*, X2, X3, X4>>));
62
63 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L4, Q_add_pointer>, mp_list<X1*, X2, X3, X4>>));
64 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L4, Q_add_pointer>, mp_list<X1*, X2, X3, X4>>));
65 }
66
67 {
68 using L1 = std::tuple<X1>;
69
70 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L1, add_pointer_t>, std::tuple<X1*>>));
71 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L1, add_pointer_t>, std::tuple<X1*>>));
72
73 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L1, Q_add_pointer>, std::tuple<X1*>>));
74 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L1, Q_add_pointer>, std::tuple<X1*>>));
75
76 using L2 = std::tuple<X1, X2>;
77
78 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L2, add_pointer_t>, std::tuple<X1*, X2>>));
79 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L2, add_pointer_t>, std::tuple<X1*, X2>>));
80
81 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L2, Q_add_pointer>, std::tuple<X1*, X2>>));
82 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L2, Q_add_pointer>, std::tuple<X1*, X2>>));
83
84 using L3 = std::tuple<X1, X2, X3>;
85
86 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L3, add_pointer_t>, std::tuple<X1*, X2, X3>>));
87 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L3, add_pointer_t>, std::tuple<X1*, X2, X3>>));
88
89 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L3, Q_add_pointer>, std::tuple<X1*, X2, X3>>));
90 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L3, Q_add_pointer>, std::tuple<X1*, X2, X3>>));
91
92 using L4 = std::tuple<X1, X2, X3, X4>;
93
94 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L4, add_pointer_t>, std::tuple<X1*, X2, X3, X4>>));
95 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L4, add_pointer_t>, std::tuple<X1*, X2, X3, X4>>));
96
97 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L4, Q_add_pointer>, std::tuple<X1*, X2, X3, X4>>));
98 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L4, Q_add_pointer>, std::tuple<X1*, X2, X3, X4>>));
99 }
100
101 {
102 using L2 = std::pair<X1, X2>;
103
104 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front<L2, add_pointer_t>, std::pair<X1*, X2>>));
105 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first<L2, add_pointer_t>, std::pair<X1*, X2>>));
106
107 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_front_q<L2, Q_add_pointer>, std::pair<X1*, X2>>));
108 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_first_q<L2, Q_add_pointer>, std::pair<X1*, X2>>));
109 }
110
111 return boost::report_errors();
112 }
113