Edit: /usr/include/boost/hana/difference.hpp (1116B)
/*!
@file
Defines `boost::hana::difference`.
@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)
*/
#ifndef BOOST_HANA_DIFFERENCE_HPP
#define BOOST_HANA_DIFFERENCE_HPP
#include
#include
#include
#include
BOOST_HANA_NAMESPACE_BEGIN
//! @cond
template
constexpr auto difference_t::operator()(Xs&& xs, Ys&& ys) const {
using S = typename hana::tag_of::type;
using Difference = BOOST_HANA_DISPATCH_IF(difference_impl,
true
);
return Difference::apply(static_cast(xs), static_cast(ys));
}
//! @endcond
template
struct difference_impl> : default_ {
template
static constexpr auto apply(Args&& ...) = delete;
};
BOOST_HANA_NAMESPACE_END
#endif // !BOOST_HANA_DIFFERENCE_HPP