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/utility.hpp>
11 #include <boost/mp11/detail/config.hpp>
12 #include <boost/core/lightweight_test_trait.hpp>
13 #include <type_traits>
14
main()15 int main()
16 {
17 using boost::mp11::mp_identity;
18 using boost::mp11::mp_quote_trait;
19 using boost::mp11::mp_invoke_q;
20
21 {
22 using Q = mp_quote_trait<mp_identity>;
23
24 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<void>, void>));
25 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<int[]>, int[]>));
26
27 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void>, void>));
28 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, int[]>, int[]>));
29 }
30
31 {
32 using Q = mp_quote_trait<std::add_pointer>;
33
34 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<void>, void*>));
35 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<int[]>, int(*)[]>));
36
37 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void>, void*>));
38 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, int[]>, int(*)[]>));
39 }
40
41 {
42 using Q = mp_quote_trait<std::add_const>;
43
44 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<void>, void const>));
45 BOOST_TEST_TRAIT_TRUE((std::is_same<Q::fn<int[]>, int const[]>));
46
47 #if !BOOST_MP11_WORKAROUND( BOOST_MP11_GCC, < 40900 )
48
49 // g++ 4.7, 4.8 have difficulties with preserving top-level const
50
51 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void>, void const>));
52 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, int[]>, int const[]>));
53
54 #endif
55 }
56
57 return boost::report_errors();
58 }
59