mirror of
https://github.com/boostorg/hana.git
synced 2026-02-15 01:02:10 +00:00
27 lines
974 B
C++
27 lines
974 B
C++
/*
|
|
@copyright Louis Dionne 2014
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
|
|
#include <boost/hana/ext/std/integer_sequence.hpp>
|
|
|
|
#include <boost/hana/detail/static_assert.hpp>
|
|
|
|
#include <utility>
|
|
using namespace boost::hana;
|
|
|
|
|
|
int main() {
|
|
BOOST_HANA_STATIC_ASSERT(is_empty(std::index_sequence<>{}));
|
|
BOOST_HANA_STATIC_ASSERT(!is_empty(std::index_sequence<0>{}));
|
|
BOOST_HANA_STATIC_ASSERT(!is_empty(std::index_sequence<1>{}));
|
|
|
|
BOOST_HANA_STATIC_ASSERT(head(std::index_sequence<0>{}) == 0);
|
|
BOOST_HANA_STATIC_ASSERT(head(std::index_sequence<0, 1>{}) == 0);
|
|
|
|
BOOST_HANA_STATIC_ASSERT(equal(tail(std::index_sequence<0>{}), std::index_sequence<>{}));
|
|
BOOST_HANA_STATIC_ASSERT(equal(tail(std::index_sequence<0, 1>{}), std::index_sequence<1>{}));
|
|
BOOST_HANA_STATIC_ASSERT(equal(tail(std::index_sequence<0, 1, 2>{}), std::index_sequence<1, 2>{}));
|
|
}
|