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29 lines
855 B
C++
29 lines
855 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/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/map.hpp>
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#include <boost/hana/maybe.hpp>
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#include <boost/hana/pair.hpp>
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#include <boost/hana/type.hpp>
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using namespace boost::hana;
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int main() {
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//! [main]
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BOOST_HANA_CONSTANT_ASSERT(lookup(type<int>, list(int_<1>, type<int>, '3')) == just(type<int>));
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BOOST_HANA_CONSTANT_ASSERT(lookup(type<void>, list(int_<1>, type<int>, '3')) == nothing);
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BOOST_HANA_CONSTEXPR_ASSERT(lookup(type<float>, map(
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pair(1, 'x'),
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pair(type<float>, 3.3),
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pair(type<char>, type<int>)
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)) == just(3.3));
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//! [main]
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}
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