69 lines
2.1 KiB
C++
69 lines
2.1 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/equal.hpp>
|
|
#include <boost/hana/experimental/view.hpp>
|
|
#include <boost/hana/integral_constant.hpp>
|
|
#include <boost/hana/length.hpp>
|
|
#include <boost/hana/tuple.hpp>
|
|
|
|
#include <support/seq.hpp>
|
|
namespace hana = boost::hana;
|
|
|
|
|
|
template <int> struct undefined { };
|
|
|
|
int main() {
|
|
auto container = ::seq;
|
|
|
|
{
|
|
auto storage = container();
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<0>
|
|
));
|
|
}
|
|
|
|
{
|
|
auto storage = container(undefined<0>{});
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<1>
|
|
));
|
|
}{
|
|
auto storage = container(undefined<0>{});
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<0>
|
|
));
|
|
}
|
|
|
|
{
|
|
auto storage = container(undefined<0>{}, undefined<1>{});
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<1>
|
|
));
|
|
}{
|
|
auto storage = container(undefined<0>{}, undefined<1>{});
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0, 1>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<2>
|
|
));
|
|
}{
|
|
auto storage = container(undefined<0>{}, undefined<1>{});
|
|
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0, 0>);
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::length(sliced),
|
|
hana::size_c<2>
|
|
));
|
|
}
|
|
}
|