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
15 using boost::mp11::mp_invoke_q;
16
17 template<class...> struct X {};
18
19 template<template<class...> class F, class... T> using Y = X<F<T>...>;
20
21 template<class Q, class... T> using Z = X<mp_invoke_q<Q, T>...>;
22
23 template<class T, class U> struct P {};
24
25 template<class T, class U> using first = T;
26
main()27 int main()
28 {
29 using boost::mp11::mp_identity_t;
30 using boost::mp11::mp_quote;
31
32 {
33 using Q = mp_quote<mp_identity_t>;
34
35 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void>, void>));
36 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, int[]>, int[]>));
37 }
38
39 {
40 using Q = mp_quote<mp_identity_t>;
41
42 #if !BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, <= 1800 )
43 using R1 = Y<Q::fn, void, char, int>;
44 BOOST_TEST_TRAIT_TRUE((std::is_same<R1, X<void, char, int>>));
45 #endif
46
47 #if !BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, < 1920 && BOOST_MP11_MSVC >= 1900 )
48 using R2 = Z<Q, void, char, int>;
49 BOOST_TEST_TRAIT_TRUE((std::is_same<R2, X<void, char, int>>));
50 #endif
51 }
52
53 {
54 using Q = mp_quote<P>;
55
56 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void, void>, P<void, void>>));
57 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, char[], int[]>, P<char[], int[]>>));
58 }
59
60 {
61 using Q = mp_quote<first>;
62
63 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, void, int>, void>));
64 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_invoke_q<Q, char[], int[]>, char[]>));
65 }
66
67 return boost::report_errors();
68 }
69