mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-22 12:51:42 +03:00
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*!
|
|
@file
|
|
Defines `boost::hana::intersection`.
|
|
|
|
@copyright Louis Dionne 2013-2016
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
|
|
#ifndef BOOST_HANA_INTERSECTION_HPP
|
|
#define BOOST_HANA_INTERSECTION_HPP
|
|
|
|
#include <boost/hana/fwd/intersection.hpp>
|
|
|
|
#include <boost/hana/config.hpp>
|
|
#include <boost/hana/core/dispatch.hpp>
|
|
|
|
|
|
BOOST_HANA_NAMESPACE_BEGIN
|
|
//! @cond
|
|
template <typename Xs, typename Ys>
|
|
constexpr auto intersection_t::operator()(Xs&& xs, Ys&& ys) const {
|
|
using S = typename hana::tag_of<Xs>::type;
|
|
using Intersection = BOOST_HANA_DISPATCH_IF(intersection_impl<S>,
|
|
true
|
|
);
|
|
|
|
return Intersection::apply(static_cast<Xs&&>(xs), static_cast<Ys&&>(ys));
|
|
}
|
|
//! @endcond
|
|
|
|
template <typename S, bool condition>
|
|
struct intersection_impl<S, when<condition>> : default_ {
|
|
template <typename ...Args>
|
|
static constexpr auto apply(Args&& ...) = delete;
|
|
};
|
|
BOOST_HANA_NAMESPACE_END
|
|
|
|
#endif // !BOOST_HANA_INTERSECTION_HPP
|