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1 | // { dg-options "-std=gnu++0x" } |
2 | ||
aa118a03 | 3 | // Copyright (C) 2011-2014 Free Software Foundation, Inc. |
7e5ac0a4 FD |
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 <unordered_set> | |
21 | #include <vector> | |
22 | #include <limits> | |
23 | #include <ext/throw_allocator.h> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | void test01() | |
27 | { | |
28 | bool test __attribute__((unused)) = true; | |
29 | ||
30 | typedef std::numeric_limits<std::size_t> nl_size_t; | |
31 | std::unordered_set<int, std::hash<int>, std::equal_to<int>, | |
32 | __gnu_cxx::throw_allocator_limit<int> > us; | |
33 | const int nb = 100; | |
34 | int scheduled_throw_counter = 0; | |
35 | std::size_t thrown_exceptions = 0; | |
36 | for (int i = 0; i != nb; ++i) | |
37 | { | |
38 | if ((float)(us.size() + 1) | |
39 | / (float)us.bucket_count() >= us.max_load_factor()) | |
40 | { | |
41 | // We are going to need a rehash, lets introduce allocation issues: | |
42 | __gnu_cxx::limit_condition::set_limit(scheduled_throw_counter++); | |
43 | } | |
44 | try | |
45 | { | |
46 | VERIFY(us.insert(i).second); | |
47 | scheduled_throw_counter = 0; | |
48 | } | |
49 | catch (const __gnu_cxx::forced_error&) | |
50 | { | |
51 | ++thrown_exceptions; | |
52 | --i; | |
53 | } | |
54 | VERIFY( us.load_factor() <= us.max_load_factor() ); | |
55 | __gnu_cxx::limit_condition::set_limit(nl_size_t::max()); | |
56 | } | |
57 | ||
58 | VERIFY( thrown_exceptions != 0 ); | |
59 | // Check that all values have been inserted: | |
60 | for (int i = 0; i != nb; ++i) | |
61 | { | |
62 | VERIFY( us.count(i) == 1 ); | |
63 | } | |
64 | } | |
65 | ||
66 | void test02() | |
67 | { | |
68 | bool test __attribute__((unused)) = true; | |
69 | ||
70 | typedef std::numeric_limits<std::size_t> nl_size_t; | |
71 | std::unordered_set<int, std::hash<int>, std::equal_to<int>, | |
72 | __gnu_cxx::throw_allocator_limit<int> > us; | |
73 | const int nb = 100; | |
74 | int scheduled_throw_counter = 0; | |
75 | std::size_t thrown_exceptions = 0; | |
76 | for (int i = 0; i != nb; ++i) | |
77 | { | |
78 | if ((float)(us.size() + 2) | |
79 | / (float)us.bucket_count() >= us.max_load_factor()) | |
80 | { | |
81 | // We are going to need a rehash, lets introduce allocation issues: | |
82 | __gnu_cxx::limit_condition::set_limit(scheduled_throw_counter++); | |
83 | } | |
84 | try | |
85 | { | |
86 | std::vector<int> v = { i, i }; | |
87 | // Check the insert range robustness | |
88 | us.insert(v.begin(), v.end()); | |
89 | scheduled_throw_counter = 0; | |
90 | } | |
91 | catch (const __gnu_cxx::forced_error&) | |
92 | { | |
93 | ++thrown_exceptions; | |
94 | --i; | |
95 | } | |
96 | VERIFY( us.load_factor() <= us.max_load_factor() ); | |
97 | __gnu_cxx::limit_condition::set_limit(nl_size_t::max()); | |
98 | } | |
99 | ||
100 | VERIFY( thrown_exceptions != 0 ); | |
101 | // Check that all values have been inserted: | |
102 | for (int i = 0; i != nb; ++i) | |
103 | { | |
104 | VERIFY( us.count(i) == 1 ); | |
105 | } | |
106 | } | |
107 | ||
108 | int main() | |
109 | { | |
110 | test01(); | |
111 | test02(); | |
112 | return 0; | |
113 | } |