1 /***************************************************************************
2 * Copyright (C) 2008-2014 by Andrzej Rybczak *
3 * electricityispower@gmail.com *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
21 #ifndef NCMPCPP_UTILITY_FUNCTIONAL_H
22 #define NCMPCPP_UTILITY_FUNCTIONAL_H
26 // identity function object
29 template <typename ValueT
>
30 constexpr auto operator()(ValueT
&&v
) const noexcept
31 -> decltype(std::forward
<ValueT
>(v
))
33 return std::forward
<ValueT
>(v
);
37 #endif // NCMPCPP_UTILITY_FUNCTIONAL_H