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30 lines
726 B
C++
30 lines
726 B
C++
/*
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@copyright Louis Dionne 2015
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/hana/assert.hpp>
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#include <boost/hana/at.hpp>
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#include <boost/hana/tuple.hpp>
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#include <functional>
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namespace hana = boost::hana;
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int main() {
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int i = 0;
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char c = 'x';
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hana::tuple<int&, char const&> refs = hana::make_tuple(std::ref(i), std::cref(c));
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int& i_ref = hana::at_c<0>(refs);
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BOOST_HANA_RUNTIME_CHECK(&i_ref == &i);
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i_ref = 3;
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BOOST_HANA_RUNTIME_CHECK(i == 3);
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char const& c_ref = hana::at_c<1>(refs);
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BOOST_HANA_RUNTIME_CHECK(&c_ref == &c);
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BOOST_HANA_RUNTIME_CHECK(c == 'x');
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}
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