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 {
31 typedef std::unordered_multimap<int, std::string> C;
32 typedef std::pair<int, std::string> P;
33 P a[] =
34 {
35 P(1, "one"),
36 P(2, "two"),
37 P(3, "three"),
38 P(4, "four"),
39 P(1, "four"),
40 P(2, "four"),
41 };
42 C c(a, a + sizeof(a)/sizeof(a[0]));
43 LIBCPP_ASSERT(c.bucket_count() == 7);
44 assert(c.size() == 6);
45 assert(std::distance(c.begin(), c.end()) == c.size());
46 assert(std::distance(c.cbegin(), c.cend()) == c.size());
47 C::iterator i = c.begin();
48 i->second = "ONE";
49 assert(i->second == "ONE");
50 i->first = 2;
51 }
52 {
53 typedef std::unordered_multimap<int, std::string> C;
54 typedef std::pair<int, std::string> P;
55 P a[] =
56 {
57 P(1, "one"),
58 P(2, "two"),
59 P(3, "three"),
60 P(4, "four"),
61 P(1, "four"),
62 P(2, "four"),
63 };
64 const C c(a, a + sizeof(a)/sizeof(a[0]));
65 LIBCPP_ASSERT(c.bucket_count() == 7);
66 assert(c.size() == 6);
67 assert(std::distance(c.begin(), c.end()) == c.size());
68 assert(std::distance(c.cbegin(), c.cend()) == c.size());
69 }
70
71 return 0;
72}
73

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