mirror of
https://github.com/boostorg/hana.git
synced 2026-02-13 12:32:10 +00:00
41 lines
1.4 KiB
C++
41 lines
1.4 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/functional.hpp>
|
|
|
|
#include <boost/hana/detail/static_assert.hpp>
|
|
using namespace boost::hana;
|
|
|
|
|
|
struct nonpod { virtual ~nonpod() { } };
|
|
|
|
int main() {
|
|
BOOST_HANA_STATIC_ASSERT(arg<1>(1) == 1);
|
|
BOOST_HANA_STATIC_ASSERT(arg<1>(1, '2') == 1);
|
|
BOOST_HANA_STATIC_ASSERT(arg<1>(1, '2', 3.3) == 1);
|
|
BOOST_HANA_STATIC_ASSERT(arg<1>(1, '2', 3.3, nonpod{}) == 1);
|
|
|
|
BOOST_HANA_STATIC_ASSERT(arg<2>(1, '2') == '2');
|
|
BOOST_HANA_STATIC_ASSERT(arg<2>(1, '2', 3.3) == '2');
|
|
BOOST_HANA_STATIC_ASSERT(arg<2>(1, '2', 3.3, 4.4f) == '2');
|
|
BOOST_HANA_STATIC_ASSERT(arg<2>(1, '2', 3.3, 4.4f, nonpod{}) == '2');
|
|
|
|
BOOST_HANA_STATIC_ASSERT(arg<3>(1, '2', 3.3) == 3.3);
|
|
BOOST_HANA_STATIC_ASSERT(arg<3>(1, '2', 3.3, 4.4f) == 3.3);
|
|
BOOST_HANA_STATIC_ASSERT(arg<3>(1, '2', 3.3, 4.4f, nonpod{}) == 3.3);
|
|
|
|
BOOST_HANA_STATIC_ASSERT(arg<4>(1, '2', 3.3, 4.4f) == 4.4f);
|
|
BOOST_HANA_STATIC_ASSERT(arg<4>(1, '2', 3.3, 4.4f, nonpod{}) == 4.4f);
|
|
|
|
nonpod n = arg<5>(1, '2', 3.3, 4.4f, nonpod{});
|
|
(void)n;
|
|
|
|
// Check with non-pods before the index we're targetting.
|
|
BOOST_HANA_STATIC_ASSERT(arg<2>(nonpod{}, '2') == '2');
|
|
BOOST_HANA_STATIC_ASSERT(arg<3>(nonpod{}, '2', 3.3) == 3.3);
|
|
BOOST_HANA_STATIC_ASSERT(arg<4>(nonpod{}, '2', 3.3, 4.4f) == 4.4f);
|
|
}
|