1 /* Copyright (C) 2017-2023 Free Software Foundation, Inc. 2 3 This file is part of GDB. 4 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 3 of the License, or 8 (at your option) any later version. 9 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. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #ifndef COMMON_UNDERLYING_H 19 #define COMMON_UNDERLYING_H 20 21 #include <type_traits> 22 23 /* Convert an enum to its underlying value. */ 24 25 template<typename E> 26 constexpr typename std::underlying_type<E>::type 27 to_underlying (E val) noexcept 28 { 29 return static_cast<typename std::underlying_type<E>::type> (val); 30 } 31 32 #endif 33