diff options
Diffstat (limited to 'gdb/common/traits.h')
-rw-r--r-- | gdb/common/traits.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gdb/common/traits.h b/gdb/common/traits.h new file mode 100644 index 00000000000..4b7bac37fe5 --- /dev/null +++ b/gdb/common/traits.h @@ -0,0 +1,34 @@ +/* Copyright (C) 2017 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef COMMON_TRAITS_H +#define COMMON_TRAITS_H + +namespace gdb { + +/* Pre C++14-safe (CWG 1558) version of C++17's std::void_t. See + <http://en.cppreference.com/w/cpp/types/void_t>. */ + +template<typename... Ts> +struct make_void { typedef void type; }; + +template<typename... Ts> +using void_t = typename make_void<Ts...>::type; + +} + +#endif /* COMMON_TRAITS_H */ |