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28 lines
1.0 KiB
C++
28 lines
1.0 KiB
C++
/*
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@copyright Louis Dionne 2014
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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/adapted/std_tuple.hpp>
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#include <boost/hana/detail/static_assert.hpp>
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#include <boost/hana/integral.hpp>
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#include <tuple>
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using namespace boost::hana;
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int main() {
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BOOST_HANA_STATIC_ASSERT(is_empty(std::make_tuple()));
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BOOST_HANA_STATIC_ASSERT(!is_empty(std::make_tuple(int_<0>)));
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BOOST_HANA_STATIC_ASSERT(!is_empty(std::make_tuple(int_<0>, int_<1>)));
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BOOST_HANA_STATIC_ASSERT(head(std::make_tuple(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(head(std::make_tuple(int_<0>, int_<1>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(tail(std::make_tuple(int_<0>)) == std::make_tuple());
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BOOST_HANA_STATIC_ASSERT(tail(std::make_tuple(int_<0>, int_<1>)) == std::make_tuple(int_<1>));
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BOOST_HANA_STATIC_ASSERT(tail(std::make_tuple(int_<0>, int_<1>, int_<2>)) == std::make_tuple(int_<1>, int_<2>));
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}
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