1
2 // Copyright 2015, 2017 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/integral.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 using boost::mp11::mp_not;
24
25 template<class T> using add_pointer = T*;
26 template<class T, class...> using is_not_ref = mp_not<std::is_reference<T>>;
27 template<class T1, class T2> using second = T2;
28 template<class T1, class T2, class T3> using third = T3;
29 template<class T1, class T2, class T3, class T4> using fourth = T4;
30 template<class T1, class T2, class T3, class T4, class T5> using fifth = T5;
31
main()32 int main()
33 {
34 using boost::mp11::mp_list;
35 using boost::mp11::mp_transform_if;
36 using boost::mp11::mp_size_t;
37 using boost::mp11::mp_size;
38 using boost::mp11::mp_fill;
39 using boost::mp11::mp_iota;
40
41 using L1 = mp_list<X1, X2&, X3 const, X4 const&>;
42
43 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L1>, mp_list<X1*, X2&, X3 const*, X4 const&>>));
44
45 using L2 = std::tuple<X1, X2&, X3 const, X4 const&>;
46
47 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L2>, std::tuple<X1*, X2&, X3 const*, X4 const&>>));
48
49 using L3 = std::pair<X1 const, X2&>;
50
51 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L3>, std::pair<X1 const*, X2&>>));
52
53 //
54
55 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, second, L1, mp_fill<L1, void>>, mp_list<void, X2&, void, X4 const&>>));
56 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, second, L2, mp_fill<L2, void>>, std::tuple<void, X2&, void, X4 const&>>));
57 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, second, L3, mp_fill<L3, void>>, std::pair<void, X2&>>));
58
59 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, third, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
60 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, third, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
61 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, third, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
62
63 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fourth, L1, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
64 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fourth, L2, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
65 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fourth, L3, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
66
67 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fifth, L1, L1, L1, L1, mp_iota<mp_size<L1>>>, mp_list<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
68 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fifth, L2, L2, L2, L2, mp_iota<mp_size<L2>>>, std::tuple<mp_size_t<0>, X2&, mp_size_t<2>, X4 const&>>));
69 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, fifth, L3, L3, L3, L3, mp_iota<mp_size<L3>>>, std::pair<mp_size_t<0>, X2&>>));
70
71 //
72
73 return boost::report_errors();
74 }
75