1// Copyright Louis Dionne 2013-2022
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/assert.hpp>
6#include <boost/hana/ext/std/integer_sequence.hpp>
7#include <boost/hana/is_empty.hpp>
8#include <boost/hana/not.hpp>
9
10#include <utility>
11namespace hana = boost::hana;
12
13
14int main() {
15 BOOST_HANA_CONSTANT_CHECK(hana::is_empty(std::index_sequence<>{}));
16 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<0>{})));
17 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(std::index_sequence<1>{})));
18}
19

source code of boost/libs/hana/test/ext/std/integer_sequence/is_empty.cpp