1 // Copyright Louis Dionne 2013-2017
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)
5 #include <boost/hana/assert.hpp>
6 #include <boost/hana/experimental/view.hpp>
7 #include <boost/hana/is_empty.hpp>
8 #include <boost/hana/not.hpp>
10 #include <support/seq.hpp>
11 namespace hana = boost::hana;
17 auto container = ::seq;
20 auto xs = container();
21 auto tr = hana::experimental::transformed(xs, undefined{});
22 BOOST_HANA_CONSTANT_CHECK(hana::is_empty(tr));
26 auto xs = container(undefined{});
27 auto tr = hana::experimental::transformed(xs, undefined{});
28 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(tr)));
32 auto xs = container(undefined{}, undefined{});
33 auto tr = hana::experimental::transformed(xs, undefined{});
34 BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(tr)));