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// 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/functional/demux.hpp>
#include <laws/base.hpp>
namespace hana = boost::hana;
using hana::test::ct_eq;
struct MoveOnly {
MoveOnly() = default;
MoveOnly(MoveOnly const&) = delete;
MoveOnly(MoveOnly&&) = default;
};
int main() {
hana::test::_injection<0> f{};
hana::test::_injection<1> g{};
hana::test::_injection<2> h{};
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)()(),
f()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g)(ct_eq<1>{}),
f(g(ct_eq<1>{}))
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g)(ct_eq<1>{}, ct_eq<2>{}),
f(g(ct_eq<1>{}, ct_eq<2>{}))
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
f(g(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}))
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g, h)(ct_eq<1>{}),
f(g(ct_eq<1>{}), h(ct_eq<1>{}))
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g, h)(ct_eq<1>{}, ct_eq<2>{}),
f(g(ct_eq<1>{}, ct_eq<2>{}), h(ct_eq<1>{}, ct_eq<2>{}))
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::demux(f)(g, h)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
f(g(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), h(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}))
));
// Make sure we can pass move-only types when a single function
// is demux'ed. In other words, make sure the arguments are
// perfect-forwarded when a single function is demux'ed.
{
hana::demux(f)(g)(MoveOnly{});
hana::demux(f)(g)(MoveOnly{}, MoveOnly{});
hana::demux(f)(g)(MoveOnly{}, MoveOnly{}, MoveOnly{});
}
}
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