| 1 | /* Minimal implementation of make_unique for C++11 compatibility. |
|---|---|
| 2 | Copyright (C) 2022-2024 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GCC. |
| 5 | |
| 6 | GCC is free software; you can redistribute it and/or modify it under |
| 7 | the terms of the GNU General Public License as published by the Free |
| 8 | Software Foundation; either version 3, or (at your option) any later |
| 9 | version. |
| 10 | |
| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GCC; see the file COPYING3. If not see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef GCC_MAKE_UNIQUE |
| 21 | #define GCC_MAKE_UNIQUE |
| 22 | |
| 23 | /* This header uses std::unique_ptr, but <memory> can't be directly |
| 24 | included due to issues with macros. Hence <memory> must be included |
| 25 | from system.h by defining INCLUDE_MEMORY in any source file using |
| 26 | make-unique.h. */ |
| 27 | |
| 28 | #ifndef INCLUDE_MEMORY |
| 29 | # error "You must define INCLUDE_MEMORY before including system.h to use make-unique.h" |
| 30 | #endif |
| 31 | |
| 32 | #include <type_traits> |
| 33 | |
| 34 | /* Minimal implementation of make_unique for C++11 compatibility |
| 35 | (std::make_unique is C++14). */ |
| 36 | |
| 37 | template<typename T, typename... Args> |
| 38 | inline typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type |
| 39 | make_unique(Args&&... args) |
| 40 | { |
| 41 | return std::unique_ptr<T> (new T (std::forward<Args> (args)...)); |
| 42 | } |
| 43 | |
| 44 | #endif /* ! GCC_MAKE_UNIQUE */ |
| 45 |