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83ffe9cd | 1 | // Copyright (C) 2013-2023 Free Software Foundation, Inc. |
0462b6aa FD |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
52066eae | 18 | // { dg-do compile { target c++11 } } |
0462b6aa FD |
19 | |
20 | #include <unordered_map> | |
0462b6aa FD |
21 | #include <testsuite_allocator.h> |
22 | ||
23 | struct T { int i; }; | |
24 | ||
25 | struct hash | |
26 | { | |
27 | std::size_t operator()(const T t) const noexcept | |
28 | { return t.i; } | |
29 | }; | |
30 | ||
31 | struct equal_to | |
32 | { | |
33 | bool operator()(const T& lhs, const T& rhs) const noexcept | |
34 | { return lhs.i == rhs.i; } | |
35 | }; | |
36 | ||
c5d9ec56 JW |
37 | // Versions of the function objects without nothrow swap. |
38 | struct hash_t : hash { }; | |
39 | void swap(hash_t&, hash_t&) noexcept(false) { } | |
40 | struct equal_to_t : equal_to { }; | |
41 | void swap(equal_to_t&, equal_to_t&) noexcept(false) { } | |
0462b6aa FD |
42 | |
43 | using __gnu_test::propagating_allocator; | |
44 | ||
45 | void test01() | |
46 | { | |
78ed0f80 | 47 | typedef std::allocator<std::pair<const T, T>> alloc_type; |
0462b6aa FD |
48 | typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type; |
49 | test_type v1; | |
50 | test_type v2; | |
51 | // this is a GNU extension for std::allocator | |
52 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
53 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
54 | } | |
55 | ||
56 | void test02() | |
c5d9ec56 | 57 | { |
78ed0f80 | 58 | typedef std::allocator<std::pair<const T, T>> alloc_type; |
c5d9ec56 JW |
59 | typedef std::unordered_multimap<T, T, hash_t, equal_to, alloc_type> test_type; |
60 | test_type v1; | |
61 | test_type v2; | |
62 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
63 | static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" ); | |
64 | } | |
65 | ||
66 | void test03() | |
67 | { | |
78ed0f80 | 68 | typedef std::allocator<std::pair<const T, T>> alloc_type; |
c5d9ec56 JW |
69 | typedef std::unordered_multimap<T, T, hash, equal_to_t, alloc_type> |
70 | test_type; | |
71 | test_type v1; | |
72 | test_type v2; | |
73 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
74 | static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" ); | |
75 | } | |
76 | ||
77 | void test04() | |
0462b6aa | 78 | { |
78ed0f80 | 79 | typedef propagating_allocator<std::pair<const T, T>, false> alloc_type; |
0462b6aa FD |
80 | typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type; |
81 | test_type v1(alloc_type(1)); | |
82 | test_type v2(alloc_type(2)); | |
83 | static_assert( !noexcept( v1 = std::move(v2) ), "Move assign can throw" ); | |
84 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
85 | } | |
86 | ||
c5d9ec56 | 87 | void test05() |
0462b6aa | 88 | { |
78ed0f80 | 89 | typedef propagating_allocator<std::pair<const T, T>, true> alloc_type; |
0462b6aa FD |
90 | typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type; |
91 | test_type v1(alloc_type(1)); | |
92 | test_type v2(alloc_type(2)); | |
93 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
c5d9ec56 | 94 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); |
0462b6aa | 95 | } |
da27f556 | 96 | |
c5d9ec56 | 97 | void test06() |
da27f556 FD |
98 | { |
99 | typedef std::unordered_multimap<int, int> test_type; | |
c5d9ec56 JW |
100 | static_assert( noexcept( test_type() ), "Default constructor does not throw" ); |
101 | static_assert( noexcept( test_type(test_type()) ), "Move constructor does not throw" ); | |
da27f556 | 102 | } |