1
2 // Copyright 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/mp11/function.hpp>
14 #include <boost/core/lightweight_test_trait.hpp>
15 #include <type_traits>
16 #include <tuple>
17
main()18 int main()
19 {
20 using boost::mp11::mp_nth_element;
21 using boost::mp11::mp_nth_element_c;
22 using boost::mp11::mp_list_c;
23 using boost::mp11::mp_sort;
24 using boost::mp11::mp_less;
25 using boost::mp11::mp_at_c;
26 using boost::mp11::mp_size_t;
27 using boost::mp11::mp_rename;
28
29 {
30 using L1 = mp_list_c<int, 7, 1, 11, 3, 2, 2, 4>;
31 using L2 = mp_sort<L1, mp_less>;
32
33 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 0, mp_less>, mp_at_c<L2, 0>>));
34 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 1, mp_less>, mp_at_c<L2, 1>>));
35 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 2, mp_less>, mp_at_c<L2, 2>>));
36 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 3, mp_less>, mp_at_c<L2, 3>>));
37 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 4, mp_less>, mp_at_c<L2, 4>>));
38 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 5, mp_less>, mp_at_c<L2, 5>>));
39 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 6, mp_less>, mp_at_c<L2, 6>>));
40
41 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<0>, mp_less>, mp_at_c<L2, 0>>));
42 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<1>, mp_less>, mp_at_c<L2, 1>>));
43 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<2>, mp_less>, mp_at_c<L2, 2>>));
44 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<3>, mp_less>, mp_at_c<L2, 3>>));
45 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<4>, mp_less>, mp_at_c<L2, 4>>));
46 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<5>, mp_less>, mp_at_c<L2, 5>>));
47 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<6>, mp_less>, mp_at_c<L2, 6>>));
48 }
49
50 {
51 using L1 = mp_rename<mp_list_c<int, 7, 1, 11, 3, 2, 2, 4>, std::tuple>;
52 using L2 = mp_sort<L1, mp_less>;
53
54 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 0, mp_less>, mp_at_c<L2, 0>>));
55 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 1, mp_less>, mp_at_c<L2, 1>>));
56 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 2, mp_less>, mp_at_c<L2, 2>>));
57 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 3, mp_less>, mp_at_c<L2, 3>>));
58 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 4, mp_less>, mp_at_c<L2, 4>>));
59 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 5, mp_less>, mp_at_c<L2, 5>>));
60 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_c<L1, 6, mp_less>, mp_at_c<L2, 6>>));
61
62 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<0>, mp_less>, mp_at_c<L2, 0>>));
63 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<1>, mp_less>, mp_at_c<L2, 1>>));
64 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<2>, mp_less>, mp_at_c<L2, 2>>));
65 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<3>, mp_less>, mp_at_c<L2, 3>>));
66 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<4>, mp_less>, mp_at_c<L2, 4>>));
67 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<5>, mp_less>, mp_at_c<L2, 5>>));
68 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element<L1, mp_size_t<6>, mp_less>, mp_at_c<L2, 6>>));
69 }
70
71 return boost::report_errors();
72 }
73