29 lines
1.0 KiB
C++
29 lines
1.0 KiB
C++
// Copyright Louis Dionne 2013-2017
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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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#include <boost/hana/assert.hpp>
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#include <boost/hana/is_empty.hpp>
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#include <boost/hana/not.hpp>
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#include <boost/hana/tuple.hpp>
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namespace hana = boost::hana;
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struct x0;
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struct x1;
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struct x2;
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int main() {
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// tuple_t
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BOOST_HANA_CONSTANT_CHECK(hana::is_empty(hana::tuple_t<>));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_t<x0>)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_t<x0, x1>)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_t<x0, x1, x2>)));
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// tuple_c
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BOOST_HANA_CONSTANT_CHECK(hana::is_empty(hana::tuple_c<int>));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_c<int, 0>)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_c<int, 0, 1>)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::tuple_c<int, 0, 1, 2>)));
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}
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