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underlying.h
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1 /* Copyright (C) 2017-2018 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
to_underlying
constexpr std::underlying_type< E >::type to_underlying(E val) noexcept
Definition: underlying.h:27
type
static const char * type
Definition: language.c:113