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hana/example/list/take.cpp
2014-06-05 22:47:39 -04:00

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769 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/detail/static_assert.hpp>
#include <boost/hana/integral.hpp>
#include <boost/hana/list.hpp>
using namespace boost::hana;
using namespace literals;
int main() {
//! [main]
BOOST_HANA_STATIC_ASSERT(take(0_c, list(1, '2', "3")) == list());
BOOST_HANA_STATIC_ASSERT(take(1_c, list(1, '2', "3")) == list(1));
BOOST_HANA_STATIC_ASSERT(take(2_c, list(1, '2', "3")) == list(1, '2'));
BOOST_HANA_STATIC_ASSERT(take(3_c, list(1, '2', "3")) == list(1, '2', "3"));
BOOST_HANA_STATIC_ASSERT(take(4_c, list(1, '2', "3")) == list(1, '2', "3"));
//! [main]
}