hana/example/tuple/interop.cpp
2017-01-07 14:14:18 -08:00

35 lines
1.0 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/core/to.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/ext/std/array.hpp>
#include <boost/hana/ext/std/tuple.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/range.hpp>
#include <boost/hana/tuple.hpp>
#include <array>
#include <tuple>
namespace hana = boost::hana;
int main() {
static_assert(
hana::to_tuple(std::make_tuple(1, '2', 3.3)) == hana::make_tuple(1, '2', 3.3)
, "");
BOOST_HANA_CONSTANT_CHECK(
hana::to_tuple(hana::make_range(hana::int_c<1>, hana::int_c<4>))
==
hana::make_tuple(hana::int_c<1>, hana::int_c<2>, hana::int_c<3>)
);
// std::array's operator[] is not constexpr, so we can't use static_assert
BOOST_HANA_CONSTEXPR_CHECK(
hana::to_tuple(std::array<int, 3>{{1, 2, 3}}) == hana::make_tuple(1, 2, 3)
);
}