mirror of
https://github.com/boostorg/hana.git
synced 2026-02-15 01:02:10 +00:00
28 lines
1.0 KiB
C++
28 lines
1.0 KiB
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/tuple.hpp>
|
|
|
|
#include <boost/hana/detail/assert.hpp>
|
|
#include <boost/hana/integral.hpp>
|
|
|
|
#include <tuple>
|
|
using namespace boost::hana;
|
|
|
|
|
|
int main() {
|
|
BOOST_HANA_CONSTANT_ASSERT(is_empty(std::make_tuple()));
|
|
BOOST_HANA_CONSTANT_ASSERT(!is_empty(std::make_tuple(int_<0>)));
|
|
BOOST_HANA_CONSTANT_ASSERT(!is_empty(std::make_tuple(int_<0>, int_<1>)));
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(head(std::make_tuple(int_<0>)) == int_<0>);
|
|
BOOST_HANA_CONSTANT_ASSERT(head(std::make_tuple(int_<0>, int_<1>)) == int_<0>);
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(equal(tail(std::make_tuple(int_<0>)), std::make_tuple()));
|
|
BOOST_HANA_CONSTANT_ASSERT(equal(tail(std::make_tuple(int_<0>, int_<1>)), std::make_tuple(int_<1>)));
|
|
BOOST_HANA_CONSTANT_ASSERT(equal(tail(std::make_tuple(int_<0>, int_<1>, int_<2>)), std::make_tuple(int_<1>, int_<2>)));
|
|
}
|