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29 lines
1.1 KiB
C++
29 lines
1.1 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/detail/sandbox/set.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 <boost/hana/maybe.hpp>
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using namespace boost::hana;
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int main() {
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BOOST_HANA_STATIC_ASSERT(lookup(int_<1>, set()) == nothing);
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BOOST_HANA_STATIC_ASSERT(lookup(int_<1>, set(int_<1>)) == just(int_<1>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<1>, set(int_<1>, int_<2>)) == just(int_<1>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<2>, set(int_<1>, int_<2>)) == just(int_<2>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<3>, set(int_<1>, int_<2>)) == nothing);
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BOOST_HANA_STATIC_ASSERT(lookup(int_<1>, set(int_<1>, int_<2>, int_<3>)) == just(int_<1>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<2>, set(int_<1>, int_<2>, int_<3>)) == just(int_<2>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<3>, set(int_<1>, int_<2>, int_<3>)) == just(int_<3>));
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BOOST_HANA_STATIC_ASSERT(lookup(int_<4>, set(int_<1>, int_<2>, int_<3>)) == nothing);
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}
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