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/integral.hpp>
12 #include <boost/mp11/integer_sequence.hpp>
13 #include <boost/core/lightweight_test_trait.hpp>
14 #include <type_traits>
15
16 template<class T, T... I> struct S;
17
main()18 int main()
19 {
20 using boost::mp11::mp_list;
21 using boost::mp11::mp_from_sequence;
22 using boost::mp11::mp_int;
23 using boost::mp11::mp_size_t;
24 using boost::mp11::make_integer_sequence;
25 using boost::mp11::make_index_sequence;
26
27 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<S<int>>, mp_list<>>));
28 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<S<int, 1>>, mp_list<mp_int<1>>>));
29 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<S<int, 1, 3>>, mp_list<mp_int<1>, mp_int<3>>>));
30 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<S<int, 1, 3, 5>>, mp_list<mp_int<1>, mp_int<3>, mp_int<5>>>));
31
32 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_integer_sequence<int, 0>>, mp_list<>>));
33 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_integer_sequence<int, 1>>, mp_list<mp_int<0>>>));
34 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_integer_sequence<int, 2>>, mp_list<mp_int<0>, mp_int<1>>>));
35 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_integer_sequence<int, 3>>, mp_list<mp_int<0>, mp_int<1>, mp_int<2>>>));
36
37 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_index_sequence<0>>, mp_list<>>));
38 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_index_sequence<1>>, mp_list<mp_size_t<0>>>));
39 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_index_sequence<2>>, mp_list<mp_size_t<0>, mp_size_t<1>>>));
40 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_from_sequence<make_index_sequence<3>>, mp_list<mp_size_t<0>, mp_size_t<1>, mp_size_t<2>>>));
41
42 return boost::report_errors();
43 }
44