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47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
// Copyright Louis Dionne 2013-2016
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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/drop_front_exactly.hpp>
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#include <boost/hana/equal.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::equal(
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hana::drop_front_exactly(hana::tuple_t<x0>),
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hana::tuple_t<>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::drop_front_exactly(hana::tuple_t<x0, x1>),
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hana::tuple_t<x1>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::drop_front_exactly(hana::tuple_t<x0, x1, x2>),
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hana::tuple_t<x1, x2>
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));
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// tuple_c
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::drop_front_exactly(hana::tuple_c<int, 0>),
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hana::tuple_c<int>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::drop_front_exactly(hana::tuple_c<int, 0, 1>),
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hana::tuple_c<int, 1>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::drop_front_exactly(hana::tuple_c<int, 0, 1, 2>),
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hana::tuple_c<int, 1, 2>
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));
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}
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