1 // Copyright (c) 2016-2021 Antony Polukhin
2 //
3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6 #include <boost/pfr/core.hpp>
7
8 #include <boost/core/lightweight_test.hpp>
9
10 namespace helper {
11 template <std::size_t I, class T>
get(T && v)12 decltype(auto) get(T&& v) {
13 return boost::pfr::get<I>(std::forward<T>(v));
14 }
15 }
16
main()17 int main() {
18 using namespace std;
19 using namespace helper;
20 struct foo { int i; short s;};
21
22 foo f{1, 2};
23 BOOST_TEST_EQ(get<0>(f), 1);
24
25 const foo cf{1, 2};
26 BOOST_TEST_EQ(get<1>(cf), 2);
27
28 std::tuple<int, short> t{10, 20};
29 BOOST_TEST_EQ(get<0>(t), 10);
30
31 const std::tuple<int, short> ct{10, 20};
32 BOOST_TEST_EQ(get<1>(ct), 20);
33
34 return boost::report_errors();
35 }
36
37