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 begin() {return __table_.begin();}
16// iterator end() {return __table_.end();}
17// const_iterator begin() const {return __table_.begin();}
18// const_iterator end() const {return __table_.end();}
19// const_iterator cbegin() const {return __table_.begin();}
20// const_iterator cend() const {return __table_.end();}
21
22#include <unordered_map>
23#include <string>
24#include <cassert>
25
26#include "test_macros.h"
27
28int main(int, char**) {
29 {
30 typedef std::unordered_multimap<int, std::string> C;
31 typedef std::pair<int, std::string> P;
32 P a[] = {
33 P(1, "one"),
34 P(2, "two"),
35 P(3, "three"),
36 P(4, "four"),
37 P(1, "four"),
38 P(2, "four"),
39 };
40 C c(a, a + sizeof(a) / sizeof(a[0]));
41 LIBCPP_ASSERT(c.bucket_count() == 7);
42 assert(c.size() == 6);
43 assert(std::distance(c.begin(), c.end()) == c.size());
44 assert(std::distance(c.cbegin(), c.cend()) == c.size());
45 C::iterator i = c.begin();
46 i->second = "ONE";
47 assert(i->second == "ONE");
48 i->first = 2;
49 }
50 {
51 typedef std::unordered_multimap<int, std::string> C;
52 typedef std::pair<int, std::string> P;
53 P a[] = {
54 P(1, "one"),
55 P(2, "two"),
56 P(3, "three"),
57 P(4, "four"),
58 P(1, "four"),
59 P(2, "four"),
60 };
61 const C c(a, a + sizeof(a) / sizeof(a[0]));
62 LIBCPP_ASSERT(c.bucket_count() == 7);
63 assert(c.size() == 6);
64 assert(std::distance(c.begin(), c.end()) == c.size());
65 assert(std::distance(c.cbegin(), c.cend()) == c.size());
66 }
67
68 return 0;
69}
70

source code of libcxx/test/std/containers/unord/unord.multimap/iterators.compile.fail.cpp