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67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
/*
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@copyright Louis Dionne 2015
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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/assert.hpp>
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#include <boost/hana/config.hpp>
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#include <boost/hana/integral_constant.hpp>
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#include <boost/hana/maybe.hpp>
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#include <boost/hana/set.hpp>
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#include <boost/hana/string.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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{
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//! [comparable]
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BOOST_HANA_CONSTANT_CHECK(
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set(int_<0>, type<char>, int_<1>) == set(int_<1>, int_<0>, type<char>)
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);
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BOOST_HANA_CONSTEXPR_CHECK(set(1, '2', 3.3) == set('2', 1, 3.3));
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BOOST_HANA_CONSTANT_CHECK(set(1, '2', 3.3) != set('2', 1));
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//! [comparable]
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}{
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//! [searchable]
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constexpr auto xs = set(int_<0>, int_<1>, int_<2>);
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BOOST_HANA_CONSTANT_CHECK(find(xs, int_<0>) == just(int_<0>));
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BOOST_HANA_CONSTANT_CHECK(find(xs, int_<3>) == nothing);
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//! [searchable]
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}{
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//! [foldable]
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constexpr auto xs = set(int_<0>, int_<1>, int_<2>);
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static_assert(minimum(xs) == int_<0>, "");
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static_assert(maximum(xs) == int_<2>, "");
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static_assert(sum(xs) == int_<3>, "");
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// folding is not really meaningful since the order of the
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// elements is unspecified.
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//! [foldable]
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}{
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//! [insert]
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constexpr auto xs = set(int_<0>, type<int>);
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BOOST_HANA_CONSTANT_CHECK(
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insert(xs, BOOST_HANA_STRING("abc")) ==
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set(int_<0>, type<int>, BOOST_HANA_STRING("abc"))
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);
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BOOST_HANA_CONSTANT_CHECK(
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insert(xs, int_<0>) == set(int_<0>, type<int>)
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);
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//! [insert]
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}
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}
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