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      1 /* Copyright (C) 2017-2024 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