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hana/test/list/zip.cpp

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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/list.hpp>
#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/detail/static_assert.hpp>
using namespace boost::hana;
template <int ...i>
BOOST_HANA_CONSTEXPR_LAMBDA auto ilist = list_c<int, i...>;
int main() {
BOOST_HANA_STATIC_ASSERT(zip() == list());
BOOST_HANA_STATIC_ASSERT(zip(list()) == list());
BOOST_HANA_STATIC_ASSERT(zip(ilist<0>) == list(ilist<0>));
BOOST_HANA_STATIC_ASSERT(zip(ilist<0, 1>) == list(ilist<0>, ilist<1>));
BOOST_HANA_STATIC_ASSERT(zip(ilist<0, 1, 2>) == list(ilist<0>, ilist<1>, ilist<2>));
BOOST_HANA_STATIC_ASSERT(zip(list(), list()) == list());
BOOST_HANA_STATIC_ASSERT(zip(ilist<0>, ilist<1>) == list(ilist<0, 1>));
BOOST_HANA_STATIC_ASSERT(zip(ilist<0>, ilist<1>, ilist<2>) == list(ilist<0, 1, 2>));
BOOST_HANA_STATIC_ASSERT(zip(ilist<0, 3>, ilist<1, 4>, ilist<2, 5, 8>) == list(ilist<0, 1, 2>, ilist<3, 4, 5>));
}