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29 lines
931 B
C++
29 lines
931 B
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/map.hpp>
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#include <boost/hana/detail/constexpr.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/list/instance.hpp>
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#include <boost/hana/pair/instance.hpp>
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using namespace boost::hana;
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template <int i> constexpr auto k = int_<i>;
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template <int i> constexpr auto v = int_<-i>;
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template <int i, int j>
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BOOST_HANA_CONSTEXPR_LAMBDA auto p = pair(k<i>, v<j>);
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int main() {
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BOOST_HANA_STATIC_ASSERT(keys(map()) == list());
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BOOST_HANA_STATIC_ASSERT(keys(map(p<1, 1>)) == list(k<1>));
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BOOST_HANA_STATIC_ASSERT(keys(map(p<1, 1>, p<2,2>)) == list(k<1>, k<2>));
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BOOST_HANA_STATIC_ASSERT(keys(map(p<1, 1>, p<2,2>, p<3,3>)) == list(k<1>, k<2>, k<3>));
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}
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