87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
|
/*!
|
||
|
|
@file
|
||
|
|
Defines `boost::hana::detail::variadic::reverse_apply_unrolled`.
|
||
|
|
|
||
|
|
@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_DETAIL_VARIADIC_REVERSE_APPLY_UNROLLED_HPP
|
||
|
|
#define BOOST_HANA_DETAIL_VARIADIC_REVERSE_APPLY_UNROLLED_HPP
|
||
|
|
|
||
|
|
#include <boost/hana/config.hpp>
|
||
|
|
#include <boost/hana/functional/reverse_partial.hpp>
|
||
|
|
|
||
|
|
|
||
|
|
namespace boost { namespace hana { namespace detail { namespace variadic {
|
||
|
|
struct reverse_apply_unrolled_impl {
|
||
|
|
template <typename F>
|
||
|
|
constexpr decltype(auto) operator()(F&& f) const {
|
||
|
|
return static_cast<F&&>(f)();
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1) const {
|
||
|
|
return static_cast<F&&>(f)(
|
||
|
|
static_cast<X1&&>(x1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1, typename X2>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1, X2&& x2) const {
|
||
|
|
return static_cast<F&&>(f)(
|
||
|
|
static_cast<X2&&>(x2),
|
||
|
|
static_cast<X1&&>(x1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1, typename X2, typename X3>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1, X2&& x2, X3&& x3) const {
|
||
|
|
return static_cast<F&&>(f)(
|
||
|
|
static_cast<X3&&>(x3),
|
||
|
|
static_cast<X2&&>(x2),
|
||
|
|
static_cast<X1&&>(x1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1, typename X2, typename X3, typename X4>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1, X2&& x2, X3&& x3, X4&& x4) const {
|
||
|
|
return static_cast<F&&>(f)(
|
||
|
|
static_cast<X4&&>(x4),
|
||
|
|
static_cast<X3&&>(x3),
|
||
|
|
static_cast<X2&&>(x2),
|
||
|
|
static_cast<X1&&>(x1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1, typename X2, typename X3, typename X4, typename X5>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1, X2&& x2, X3&& x3, X4&& x4, X5&& x5) const {
|
||
|
|
return static_cast<F&&>(f)(
|
||
|
|
static_cast<X5&&>(x5),
|
||
|
|
static_cast<X4&&>(x4),
|
||
|
|
static_cast<X3&&>(x3),
|
||
|
|
static_cast<X2&&>(x2),
|
||
|
|
static_cast<X1&&>(x1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename F, typename X1, typename X2, typename X3, typename X4, typename X5, typename X6, typename ...Xn>
|
||
|
|
constexpr decltype(auto) operator()(F&& f, X1&& x1, X2&& x2, X3&& x3, X4&& x4, X5&& x5, X6&& x6, Xn&& ...xn) const {
|
||
|
|
return (*this)(hana::reverse_partial(
|
||
|
|
static_cast<F&&>(f)
|
||
|
|
, static_cast<X6&&>(x6)
|
||
|
|
, static_cast<X5&&>(x5)
|
||
|
|
, static_cast<X4&&>(x4)
|
||
|
|
, static_cast<X3&&>(x3)
|
||
|
|
, static_cast<X2&&>(x2)
|
||
|
|
, static_cast<X1&&>(x1)
|
||
|
|
), static_cast<Xn&&>(xn)...);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
BOOST_HANA_INLINE_VARIABLE constexpr reverse_apply_unrolled_impl reverse_apply_unrolled{};
|
||
|
|
}} }} // end namespace boost::hana
|
||
|
|
|
||
|
|
#endif // !BOOST_HANA_DETAIL_VARIADIC_REVERSE_APPLY_UNROLLED_HPP
|