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/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
main()20 int main()
21 {
22 using boost::mp11::mp_list;
23 using boost::mp11::mp_count_if;
24 using boost::mp11::mp_size_t;
25
26 {
27 using L1 = mp_list<>;
28
29 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L1, std::is_const>, mp_size_t<0>>));
30
31 using L2 = mp_list<X1, X1 const, X1*, X1 const, X1*, X1*>;
32
33 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_volatile>, mp_size_t<0>>));
34 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_const>, mp_size_t<2>>));
35 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_pointer>, mp_size_t<3>>));
36 }
37
38 {
39 using L1 = std::tuple<>;
40
41 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L1, std::is_const>, mp_size_t<0>>));
42
43 using L2 = std::tuple<X1, X1 const, X1*, X1 const, X1*, X1*>;
44
45 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_volatile>, mp_size_t<0>>));
46 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_const>, mp_size_t<2>>));
47 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_pointer>, mp_size_t<3>>));
48 }
49
50 {
51 using L2 = std::pair<X1 const, X1*>;
52
53 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_volatile>, mp_size_t<0>>));
54 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_const>, mp_size_t<1>>));
55 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_pointer>, mp_size_t<1>>));
56 }
57
58 return boost::report_errors();
59 }
60