57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright (c) 2014
|
|
// INRIA Saclay-Ile de France (France)
|
|
//
|
|
// This file is part of CGAL (www.cgal.org)
|
|
//
|
|
// $URL: https://github.com/CGAL/cgal/blob/v5.1/NewKernel_d/include/CGAL/argument_swaps.h $
|
|
// $Id: argument_swaps.h 822bc55 2020-03-27T08:28:48+01:00 Sébastien Loriot
|
|
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
|
|
//
|
|
// Author(s) : Marc Glisse
|
|
|
|
#ifndef CGAL_ARGUMENT_SWAPS_H
|
|
#define CGAL_ARGUMENT_SWAPS_H
|
|
|
|
#include <CGAL/config.h>
|
|
#include <utility>
|
|
|
|
namespace CGAL {
|
|
namespace internal {
|
|
|
|
template<std::size_t,class...> struct Apply_to_last_then_rest_;
|
|
|
|
template<std::size_t d,class F,class T,class... U>
|
|
struct Apply_to_last_then_rest_<d,F,T,U...> {
|
|
typedef typename Apply_to_last_then_rest_<d-1,F,U...,T>::result_type result_type;
|
|
inline result_type operator()(F&&f,T&&t,U&&...u)const{
|
|
return Apply_to_last_then_rest_<d-1,F,U...,T>()(
|
|
std::forward<F>(f),
|
|
std::forward<U>(u)...,
|
|
std::forward<T>(t));
|
|
}
|
|
};
|
|
|
|
template<class F,class T,class... U>
|
|
struct Apply_to_last_then_rest_<0,F,T,U...> {
|
|
typedef decltype(std::declval<F>()(std::declval<T>(), std::declval<U>()...)) result_type;
|
|
inline result_type operator()(F&&f,T&&t,U&&...u)const{
|
|
return std::forward<F>(f)(std::forward<T>(t), std::forward<U>(u)...);
|
|
}
|
|
};
|
|
} // namespace internal
|
|
|
|
struct Apply_to_last_then_rest {
|
|
template<class F,class T,class...U> inline
|
|
typename internal::Apply_to_last_then_rest_<sizeof...(U),F,T,U...>::result_type
|
|
operator()(F&&f,T&&t,U&&...u)const{
|
|
return internal::Apply_to_last_then_rest_<sizeof...(U),F,T,U...>()(
|
|
std::forward<F>(f),
|
|
std::forward<T>(t),
|
|
std::forward<U>(u)...);
|
|
}
|
|
};
|
|
|
|
} // namespace CGAL
|
|
|
|
#endif // CGAL_ARGUMENT_SWAPS_H
|