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// size_type bucket_count() const;
16
17#include <unordered_map>
18#include <string>
19#include <cassert>
20#include <iterator>
21
22#include "test_macros.h"
23
24int main(int, char**)
25{
26 {
27 typedef std::unordered_multimap<int, std::string> C;
28 const C c;
29 LIBCPP_ASSERT(c.bucket_count() == 0);
30 }
31 {
32 typedef std::unordered_multimap<int, std::string> C;
33 typedef std::pair<int, std::string> P;
34 P a[] =
35 {
36 P(10, "ten"),
37 P(20, "twenty"),
38 P(30, "thirty"),
39 P(40, "forty"),
40 P(50, "fifty"),
41 P(60, "sixty"),
42 P(70, "seventy"),
43 P(80, "eighty"),
44 };
45 const C c(std::begin(a), std::end(a));
46 assert(c.bucket_count() >= 8);
47 }
48
49 return 0;
50}
51

source code of libcxx/test/std/containers/unord/unord.multimap/bucket_count.pass.cpp