[ceph.git] / ceph / src / boost / libs / hana / test / optional / is_just.cpp

// Copyright Louis Dionne 2013-2017
// 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/assert.hpp>
#include <boost/hana/not.hpp>
#include <boost/hana/optional.hpp>
namespace hana = boost::hana;


struct undefined { };

int main() {
    BOOST_HANA_CONSTANT_CHECK(hana::is_just(hana::just(undefined{})));
    BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_just(hana::nothing)));
}
Commit	Line	Data
b32b8144	1	// Copyright Louis Dionne 2013-2017
7c673cae FG	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/not.hpp>
	7	#include <boost/hana/optional.hpp>
	8	namespace hana = boost::hana;
	9
	10
	11	struct undefined { };
	12
	13	int main() {
	14	BOOST_HANA_CONSTANT_CHECK(hana::is_just(hana::just(undefined{})));
	15	BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_just(hana::nothing)));
	16	}