hana/test/experimental/view/transformed/less.cpp
2017-01-07 14:14:18 -08:00

59 lines
1.7 KiB
C++

// 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/experimental/view.hpp>
#include <boost/hana/less.hpp>
#include <boost/hana/not.hpp>
#include <laws/base.hpp>
#include <support/seq.hpp>
namespace hana = boost::hana;
using hana::test::ct_ord;
int main() {
auto container = ::seq;
auto f = hana::test::_injection<0>{};
{
auto storage = container();
auto transformed = hana::experimental::transformed(storage, f);
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::less(
transformed,
container()
)));
}{
auto storage = container(ct_ord<0>{});
auto transformed = hana::experimental::transformed(storage, f);
BOOST_HANA_CONSTANT_CHECK(hana::less(
container(),
transformed
));
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::less(
container(f(ct_ord<0>{})),
transformed
)));
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::less(
transformed,
container()
)));
}{
auto storage = container(ct_ord<0>{}, ct_ord<1>{});
auto transformed = hana::experimental::transformed(storage, f);
BOOST_HANA_CONSTANT_CHECK(hana::less(
container(),
transformed
));
BOOST_HANA_CONSTANT_CHECK(hana::less(
container(f(ct_ord<0>{})),
transformed
));
BOOST_HANA_CONSTANT_CHECK(hana::less(
container(f(ct_ord<0>{}), f(ct_ord<0>{})),
transformed
));
}
}