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f1717362 | 1 | // Copyright (C) 2013-2016 Free Software Foundation, Inc. |
60eba405 | 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 | ||
198d7b78 | 18 | // { dg-do compile } |
6112b14e | 19 | // { dg-options "-std=gnu++11" } |
60eba405 | 20 | |
21 | #include <unordered_map> | |
60eba405 | 22 | #include <testsuite_allocator.h> |
23 | ||
24 | struct T { int i; }; | |
25 | ||
26 | struct hash | |
27 | { | |
28 | std::size_t operator()(const T t) const noexcept | |
29 | { return t.i; } | |
30 | }; | |
31 | ||
32 | struct equal_to | |
33 | { | |
34 | bool operator()(const T& lhs, const T& rhs) const noexcept | |
35 | { return lhs.i == rhs.i; } | |
36 | }; | |
37 | ||
02769f1f | 38 | // Versions of the function objects without nothrow swap. |
39 | struct hash_t : hash { }; | |
40 | void swap(hash_t&, hash_t&) noexcept(false) { } | |
41 | struct equal_to_t : equal_to { }; | |
42 | void swap(equal_to_t&, equal_to_t&) noexcept(false) { } | |
60eba405 | 43 | |
44 | using __gnu_test::propagating_allocator; | |
45 | ||
46 | void test01() | |
47 | { | |
48 | typedef std::allocator<T> alloc_type; | |
49 | typedef std::unordered_map<T, T, hash, equal_to, alloc_type> test_type; | |
50 | test_type v1; | |
51 | test_type v2; | |
52 | // this is a GNU extension for std::allocator | |
53 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
54 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
55 | } | |
56 | ||
57 | void test02() | |
02769f1f | 58 | { |
59 | typedef std::allocator<T> alloc_type; | |
60 | typedef std::unordered_map<T, T, hash_t, equal_to, alloc_type> test_type; | |
61 | test_type v1; | |
62 | test_type v2; | |
63 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
64 | static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" ); | |
65 | } | |
66 | ||
67 | void test03() | |
68 | { | |
69 | typedef std::allocator<T> alloc_type; | |
70 | typedef std::unordered_map<T, T, hash, equal_to_t, alloc_type> 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() | |
60eba405 | 78 | { |
79 | typedef propagating_allocator<T, false> alloc_type; | |
80 | typedef std::unordered_map<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 | ||
02769f1f | 87 | void test05() |
60eba405 | 88 | { |
89 | typedef propagating_allocator<T, true> alloc_type; | |
90 | typedef std::unordered_map<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" ); | |
02769f1f | 94 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); |
60eba405 | 95 | } |
6f7e9b87 | 96 | |
02769f1f | 97 | void test06() |
6f7e9b87 | 98 | { |
99 | typedef std::unordered_map<int, int> test_type; | |
02769f1f | 100 | static_assert( noexcept( test_type() ), "Default constructor does not throw" ); |
101 | static_assert( noexcept( test_type(test_type()) ), "Move constructor does not throw" ); | |
6f7e9b87 | 102 | } |