| 1 | // Copyright (c) 2016-2024 Antony Polukhin |
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| 2 | // |
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| 3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 5 | |
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| 6 | #include <boost/pfr/core.hpp> |
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| 7 | |
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| 8 | #include <boost/core/lightweight_test.hpp> |
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| 9 | |
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| 10 | namespace helper { |
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| 11 | template <std::size_t I, class T> |
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| 12 | decltype(auto) get(T&& v) { |
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| 13 | return boost::pfr::get<I>(std::forward<T>(v)); |
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| 14 | } |
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| 15 | } |
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| 16 | |
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| 17 | int main() { |
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| 18 | using namespace std; |
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| 19 | using namespace helper; |
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| 20 | struct foo { int i; short s;}; |
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| 21 | |
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| 22 | foo f{.i: 1, .s: 2}; |
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| 23 | BOOST_TEST_EQ(get<0>(f), 1); |
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| 24 | |
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| 25 | const foo cf{.i: 1, .s: 2}; |
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| 26 | BOOST_TEST_EQ(get<1>(cf), 2); |
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| 27 | |
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| 28 | std::tuple<int, short> t{10, 20}; |
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| 29 | BOOST_TEST_EQ(get<0>(t), 10); |
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| 30 | |
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| 31 | const std::tuple<int, short> ct{10, 20}; |
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| 32 | BOOST_TEST_EQ(get<1>(ct), 20); |
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| 33 | |
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| 34 | return boost::report_errors(); |
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| 35 | } |
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| 36 | |
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| 37 | |
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