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

98 lines
3.0 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/at.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/experimental/view.hpp>
#include <boost/hana/integral_constant.hpp>
#include <laws/base.hpp>
#include <support/seq.hpp>
namespace hana = boost::hana;
using hana::test::ct_eq;
int main() {
auto container = ::seq;
{
auto storage1 = container(ct_eq<0>{});
auto storage2 = container();
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
}{
auto storage1 = container();
auto storage2 = container(ct_eq<0>{});
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
}
{
auto storage1 = container(ct_eq<0>{}, ct_eq<1>{});
auto storage2 = container();
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<1>),
ct_eq<1>{}
));
}{
auto storage1 = container(ct_eq<0>{});
auto storage2 = container(ct_eq<1>{});
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<1>),
ct_eq<1>{}
));
}{
auto storage1 = container();
auto storage2 = container(ct_eq<0>{}, ct_eq<1>{});
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<1>),
ct_eq<1>{}
));
}
{
auto storage1 = container(ct_eq<0>{}, ct_eq<1>{});
auto storage2 = container(ct_eq<2>{}, ct_eq<3>{});
auto joined = hana::experimental::joined(storage1, storage2);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<0>),
ct_eq<0>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<1>),
ct_eq<1>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<2>),
ct_eq<2>{}
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::at(joined, hana::size_c<3>),
ct_eq<3>{}
));
}
}