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d38d4e5d | 1 | // Allocator that wraps operator new -*- C++ -*- |
42526146 | 2 | |
83ffe9cd | 3 | // Copyright (C) 2001-2023 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
42526146 | 24 | |
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25 | /** @file ext/new_allocator.h |
26 | * This file is a GNU extension to the Standard C++ Library. | |
27 | */ | |
28 | ||
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29 | #ifndef _NEW_ALLOCATOR_H |
30 | #define _NEW_ALLOCATOR_H 1 | |
31 | ||
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32 | #include <bits/requires_hosted.h> // GNU extensions are currently omitted |
33 | ||
fe9571a3 | 34 | #include <bits/new_allocator.h> |
1ff9402d | 35 | |
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36 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) |
37 | { | |
38 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
3cbc7af0 | 39 | |
1ff9402d | 40 | /** |
171f41f1 | 41 | * @brief An allocator that uses global `new`, as per C++03 [20.4.1]. |
5b9daa7e | 42 | * @ingroup allocators |
d38d4e5d | 43 | * |
88b3e631 | 44 | * This is precisely the allocator defined in the C++ Standard. |
171f41f1 JW |
45 | * - all allocation calls `operator new` |
46 | * - all deallocation calls `operator delete` | |
47 | * | |
48 | * This is a non-standard extension that can be used to guarantee | |
49 | * allocation from `new` even if the library has been configured to | |
50 | * use a different implementation for `std::allocator`. | |
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51 | * |
52 | * @tparam _Tp Type of allocated object. | |
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53 | * |
54 | * @headerfile ext/new_allocator.h | |
1ff9402d | 55 | */ |
d38d4e5d | 56 | template<typename _Tp> |
fe9571a3 | 57 | class new_allocator : public std::__new_allocator<_Tp> |
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58 | { |
59 | public: | |
2cae56bd | 60 | #if __cplusplus <= 201703L |
d38d4e5d | 61 | template<typename _Tp1> |
88b3e631 JW |
62 | struct rebind |
63 | { typedef new_allocator<_Tp1> other; }; | |
2cae56bd | 64 | #endif |
d38d4e5d | 65 | |
7d9cb054 | 66 | new_allocator() _GLIBCXX_USE_NOEXCEPT { } |
d38d4e5d | 67 | |
7d9cb054 | 68 | new_allocator(const new_allocator&) _GLIBCXX_USE_NOEXCEPT { } |
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69 | |
70 | template<typename _Tp1> | |
88b3e631 | 71 | new_allocator(const new_allocator<_Tp1>&) _GLIBCXX_USE_NOEXCEPT { } |
c7790bdb | 72 | }; |
3cbc7af0 | 73 | |
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74 | _GLIBCXX_END_NAMESPACE_VERSION |
75 | } // namespace | |
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76 | |
77 | #endif |