1 // Copyright Louis Dionne 2013-2017
2 // Distributed under the Boost Software License, Version 1.0.
3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
4
5 #include <boost/hana/all_of.hpp>
6 #include <boost/hana/assert.hpp>
7 #include <boost/hana/config.hpp>
8 #include <boost/hana/contains.hpp>
9 #include <boost/hana/functional/curry.hpp>
10 #include <boost/hana/permutations.hpp>
11 #include <boost/hana/tuple.hpp>
12 namespace hana = boost::hana;
13
14
__anon69f1796a0102(auto xs, auto perm) 15 BOOST_HANA_CONSTEXPR_LAMBDA auto is_permutation_of = hana::curry<2>([](auto xs, auto perm) {
16 return hana::contains(hana::permutations(xs), perm);
17 });
18
main()19 int main() {
20 BOOST_HANA_CONSTEXPR_CHECK(
21 hana::all_of(
22 hana::make_tuple(
23 hana::make_tuple('1', 2, 3.0),
24 hana::make_tuple('1', 3.0, 2),
25 hana::make_tuple(2, '1', 3.0),
26 hana::make_tuple(2, 3.0, '1'),
27 hana::make_tuple(3.0, '1', 2),
28 hana::make_tuple(3.0, 2, '1')
29 ),
30 is_permutation_of(hana::make_tuple('1', 2, 3.0))
31 )
32 );
33 }
34