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1 | // -*- C++ -*- |
2 | ||
a5544970 | 3 | // Copyright (C) 2013-2019 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 | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
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 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | #include <testsuite_hooks.h> | |
21 | #include <map> | |
22 | ||
52066eae | 23 | // { dg-do compile { target c++11 } } |
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24 | |
25 | // libstdc++/56613 | |
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26 | |
27 | // A conforming C++03 allocator, should still work in C++11 mode. | |
28 | template<typename T> | |
29 | struct alloc | |
30 | { | |
31 | typedef T value_type; | |
32 | typedef T* pointer; | |
33 | typedef const T* const_pointer; | |
34 | typedef T& reference; | |
35 | typedef const T& const_reference; | |
36 | typedef unsigned size_type; | |
37 | typedef int difference_type; | |
38 | ||
39 | template<typename U> | |
40 | struct rebind { | |
41 | typedef alloc<U> other; | |
42 | }; | |
43 | ||
44 | alloc() { } | |
45 | template<typename U> | |
46 | alloc(const alloc<U>&) { } | |
47 | ||
48 | pointer allocate(size_type n, const void* = 0) { return | |
49 | std::allocator<T>().allocate(n); } | |
50 | void deallocate(pointer p, size_type n) { std::allocator<T>().deallocate(p, | |
51 | n); } | |
52 | ||
53 | size_type max_size() const { return -1; } | |
54 | ||
55 | void construct(pointer p, const T& t) { new ((void*) p) T(t); } | |
56 | void destroy(pointer p) { p->~T(); } | |
57 | ||
58 | pointer address(reference x) const throw() { return &x; } | |
59 | const_pointer address(const_reference x) const throw() { return &x; } | |
60 | }; | |
61 | ||
62 | template<typename T, typename U> | |
63 | bool operator==(alloc<T>, alloc<U>) { return true; } | |
64 | ||
65 | template<typename T, typename U> | |
66 | bool operator!=(alloc<T>, alloc<U>) { return false; } | |
67 | ||
68 | int main() | |
69 | { | |
78ed0f80 | 70 | std::map<int, int, std::less<int>, alloc<std::pair<const int, int>>> m; |
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71 | m[1]; |
72 | } |