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be58e01d | 1 | // { dg-do run { target c++11 } } |
2414d57e | 2 | |
fbd26352 | 3 | // Copyright (C) 2011-2019 Free Software Foundation, Inc. |
2414d57e | 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 <memory> | |
21 | #include <cstddef> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | struct X { }; | |
25 | ||
26 | template<typename T> | |
27 | struct hintable_allocator | |
28 | { | |
29 | typedef T value_type; | |
30 | struct const_void_pointer { }; | |
31 | typedef unsigned size_type; | |
32 | ||
33 | hintable_allocator() : called(false) { } | |
34 | ||
35 | bool called; | |
36 | ||
37 | // this is the overload that should get called: | |
38 | T* allocate(size_type n, const_void_pointer) { called = true; return 0; } | |
39 | ||
40 | // none of these should get called: | |
41 | T* allocate(size_type n); | |
42 | T* allocate(size_type n, void*); | |
43 | T* allocate(size_type n, const void*); | |
44 | T* allocate(size_type n, const_void_pointer) const; | |
45 | }; | |
46 | ||
47 | void test01() | |
48 | { | |
2414d57e | 49 | typedef std::allocator_traits<hintable_allocator<X>> traits_type; |
50 | traits_type::allocator_type a; | |
51 | traits_type::const_void_pointer v; | |
ec54e51f | 52 | X* p __attribute__((unused)) = traits_type::allocate(a, 1, v); |
2414d57e | 53 | VERIFY( a.called ); |
54 | } | |
55 | ||
56 | template<typename T> | |
57 | struct unhintable_allocator | |
58 | { | |
59 | typedef T value_type; | |
60 | typedef unsigned size_type; | |
61 | ||
62 | unhintable_allocator() : called(false) { } | |
63 | ||
64 | bool called; | |
65 | ||
66 | // this is the overload that should get called: | |
67 | T* allocate(size_type n) { called = true; return 0; } | |
68 | ||
69 | // this should not get called: | |
70 | T* allocate(size_type n, void*); | |
71 | }; | |
72 | ||
73 | void test02() | |
74 | { | |
2414d57e | 75 | typedef std::allocator_traits<unhintable_allocator<X>> traits_type; |
76 | traits_type::allocator_type a; | |
77 | traits_type::const_void_pointer v; | |
ec54e51f | 78 | X* p __attribute__((unused)) = traits_type::allocate(a, 1, v); |
2414d57e | 79 | VERIFY( a.called ); |
80 | } | |
81 | ||
82 | int main() | |
83 | { | |
84 | test01(); | |
85 | test02(); | |
86 | } |