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