1 | //===----------------------------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | // <unordered_map> |
10 | |
11 | // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, |
12 | // class Alloc = allocator<pair<const Key, T>>> |
13 | // class unordered_multimap |
14 | |
15 | // iterator erase(const_iterator first, const_iterator last) |
16 | |
17 | #include <unordered_map> |
18 | #include <string> |
19 | #include <set> |
20 | #include <cassert> |
21 | #include <cstddef> |
22 | |
23 | #include "test_macros.h" |
24 | #include "../../../check_consecutive.h" |
25 | #include "min_allocator.h" |
26 | |
27 | int main(int, char**) { |
28 | { |
29 | typedef std::unordered_multimap<int, std::string> C; |
30 | typedef std::pair<int, std::string> P; |
31 | P a[] = { |
32 | P(1, "one" ), |
33 | P(2, "two" ), |
34 | P(3, "three" ), |
35 | P(4, "four" ), |
36 | P(1, "four" ), |
37 | P(2, "four" ), |
38 | }; |
39 | C c(a, a + sizeof(a) / sizeof(a[0])); |
40 | C::const_iterator i = c.find(2); |
41 | C::const_iterator j = std::next(i, 2); |
42 | C::iterator k = c.erase(i, i); |
43 | assert(k == i); |
44 | assert(c.size() == 6); |
45 | typedef std::pair<C::iterator, C::iterator> Eq; |
46 | Eq eq = c.equal_range(1); |
47 | assert(std::distance(eq.first, eq.second) == 2); |
48 | std::multiset<std::string> s; |
49 | s.insert("one" ); |
50 | s.insert("four" ); |
51 | CheckConsecutiveKeys<C::const_iterator>(c.find(1), c.end(), 1, s); |
52 | eq = c.equal_range(2); |
53 | assert(std::distance(eq.first, eq.second) == 2); |
54 | s.insert("two" ); |
55 | s.insert("four" ); |
56 | CheckConsecutiveKeys<C::const_iterator>(c.find(2), c.end(), 2, s); |
57 | eq = c.equal_range(3); |
58 | assert(std::distance(eq.first, eq.second) == 1); |
59 | k = eq.first; |
60 | assert(k->first == 3); |
61 | assert(k->second == "three" ); |
62 | eq = c.equal_range(4); |
63 | assert(std::distance(eq.first, eq.second) == 1); |
64 | k = eq.first; |
65 | assert(k->first == 4); |
66 | assert(k->second == "four" ); |
67 | assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); |
68 | assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); |
69 | |
70 | k = c.erase(i, j); |
71 | assert(c.size() == 4); |
72 | eq = c.equal_range(1); |
73 | assert(std::distance(eq.first, eq.second) == 2); |
74 | s.insert("one" ); |
75 | s.insert("four" ); |
76 | CheckConsecutiveKeys<C::const_iterator>(c.find(1), c.end(), 1, s); |
77 | eq = c.equal_range(3); |
78 | assert(std::distance(eq.first, eq.second) == 1); |
79 | k = eq.first; |
80 | assert(k->first == 3); |
81 | assert(k->second == "three" ); |
82 | eq = c.equal_range(4); |
83 | assert(std::distance(eq.first, eq.second) == 1); |
84 | k = eq.first; |
85 | assert(k->first == 4); |
86 | assert(k->second == "four" ); |
87 | assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); |
88 | assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); |
89 | |
90 | k = c.erase(c.cbegin(), c.cend()); |
91 | assert(c.size() == 0); |
92 | assert(k == c.end()); |
93 | } |
94 | #if TEST_STD_VER >= 11 |
95 | { |
96 | typedef std::unordered_multimap<int, |
97 | std::string, |
98 | std::hash<int>, |
99 | std::equal_to<int>, |
100 | min_allocator<std::pair<const int, std::string>>> |
101 | C; |
102 | typedef std::pair<int, std::string> P; |
103 | P a[] = { |
104 | P(1, "one" ), |
105 | P(2, "two" ), |
106 | P(3, "three" ), |
107 | P(4, "four" ), |
108 | P(1, "four" ), |
109 | P(2, "four" ), |
110 | }; |
111 | C c(a, a + sizeof(a) / sizeof(a[0])); |
112 | C::const_iterator i = c.find(2); |
113 | C::const_iterator j = std::next(i, 2); |
114 | C::iterator k = c.erase(i, i); |
115 | assert(k == i); |
116 | assert(c.size() == 6); |
117 | typedef std::pair<C::iterator, C::iterator> Eq; |
118 | Eq eq = c.equal_range(1); |
119 | assert(std::distance(eq.first, eq.second) == 2); |
120 | std::multiset<std::string> s; |
121 | s.insert("one" ); |
122 | s.insert("four" ); |
123 | CheckConsecutiveKeys<C::const_iterator>(c.find(1), c.end(), 1, s); |
124 | eq = c.equal_range(2); |
125 | assert(std::distance(eq.first, eq.second) == 2); |
126 | s.insert("two" ); |
127 | s.insert("four" ); |
128 | CheckConsecutiveKeys<C::const_iterator>(c.find(2), c.end(), 2, s); |
129 | eq = c.equal_range(3); |
130 | assert(std::distance(eq.first, eq.second) == 1); |
131 | k = eq.first; |
132 | assert(k->first == 3); |
133 | assert(k->second == "three" ); |
134 | eq = c.equal_range(4); |
135 | assert(std::distance(eq.first, eq.second) == 1); |
136 | k = eq.first; |
137 | assert(k->first == 4); |
138 | assert(k->second == "four" ); |
139 | assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); |
140 | assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); |
141 | |
142 | k = c.erase(i, j); |
143 | assert(c.size() == 4); |
144 | eq = c.equal_range(1); |
145 | assert(std::distance(eq.first, eq.second) == 2); |
146 | s.insert("one" ); |
147 | s.insert("four" ); |
148 | CheckConsecutiveKeys<C::const_iterator>(c.find(1), c.end(), 1, s); |
149 | eq = c.equal_range(3); |
150 | assert(std::distance(eq.first, eq.second) == 1); |
151 | k = eq.first; |
152 | assert(k->first == 3); |
153 | assert(k->second == "three" ); |
154 | eq = c.equal_range(4); |
155 | assert(std::distance(eq.first, eq.second) == 1); |
156 | k = eq.first; |
157 | assert(k->first == 4); |
158 | assert(k->second == "four" ); |
159 | assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); |
160 | assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); |
161 | |
162 | k = c.erase(c.cbegin(), c.cend()); |
163 | assert(c.size() == 0); |
164 | assert(k == c.end()); |
165 | } |
166 | #endif |
167 | |
168 | return 0; |
169 | } |
170 | |