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hana/test/functional/demux.cpp
2014-06-18 10:06:19 -04:00

34 lines
1.0 KiB
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/functional.hpp>
#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/detail/static_assert.hpp>
#include <tuple>
using namespace boost::hana;
BOOST_HANA_CONSTEXPR_LAMBDA auto f = [](auto ...x) {
return std::make_tuple(x...);
};
BOOST_HANA_CONSTEXPR_LAMBDA auto g = f;
BOOST_HANA_CONSTEXPR_LAMBDA auto h = f;
int main() {
BOOST_HANA_STATIC_ASSERT(demux(f)() == f());
BOOST_HANA_STATIC_ASSERT(demux(f, g)(1) == f(g(1)));
BOOST_HANA_STATIC_ASSERT(demux(f, g)(1, '2') == f(g(1, '2')));
BOOST_HANA_STATIC_ASSERT(demux(f, g)(1, '2', 3.3) == f(g(1, '2', 3.3)));
BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1) == f(g(1), h(1)));
BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1, '2') == f(g(1, '2'), h(1, '2')));
BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1, '2', 3.3) == f(g(1, '2', 3.3), h(1, '2', 3.3)));
}