34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
// Copyright Louis Dionne 2013-2017
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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/all_of.hpp>
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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/contains.hpp>
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#include <boost/hana/functional/curry.hpp>
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#include <boost/hana/permutations.hpp>
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#include <boost/hana/tuple.hpp>
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namespace hana = boost::hana;
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BOOST_HANA_CONSTEXPR_LAMBDA auto is_permutation_of = hana::curry<2>([](auto xs, auto perm) {
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return hana::contains(hana::permutations(xs), perm);
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});
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int main() {
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BOOST_HANA_CONSTEXPR_CHECK(
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hana::all_of(
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hana::make_tuple(
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hana::make_tuple('1', 2, 3.0),
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hana::make_tuple('1', 3.0, 2),
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hana::make_tuple(2, '1', 3.0),
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hana::make_tuple(2, 3.0, '1'),
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hana::make_tuple(3.0, '1', 2),
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hana::make_tuple(3.0, 2, '1')
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),
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is_permutation_of(hana::make_tuple('1', 2, 3.0))
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)
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);
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}
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