xref: /llvm-project/libcxx/test/std/containers/unord/unord.multimap/max_load_factor.pass.cpp (revision 2908eb20ba753fabb9778438e8ceb4ceacbabf30)
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 // float max_load_factor() const;
16 // void max_load_factor(float mlf);
17 
18 #include <unordered_map>
19 #include <string>
20 #include <cassert>
21 
22 #include "test_macros.h"
23 #include "min_allocator.h"
24 
main(int,char **)25 int main(int, char**)
26 {
27     {
28         typedef std::unordered_multimap<int, std::string> C;
29         const C c;
30         assert(c.max_load_factor() == 1);
31     }
32     {
33         typedef std::unordered_multimap<int, std::string> C;
34         C c;
35         assert(c.max_load_factor() == 1);
36         c.max_load_factor(2.5);
37         assert(c.max_load_factor() == 2.5);
38     }
39 #if TEST_STD_VER >= 11
40     {
41         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
42                             min_allocator<std::pair<const int, std::string>>> C;
43         const C c;
44         assert(c.max_load_factor() == 1);
45     }
46     {
47         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
48                             min_allocator<std::pair<const int, std::string>>> C;
49         C c;
50         assert(c.max_load_factor() == 1);
51         c.max_load_factor(2.5);
52         assert(c.max_load_factor() == 2.5);
53     }
54 #endif
55 
56     return 0;
57 }
58