1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <unordered_map>
11 
12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
13 //           class Alloc = allocator<pair<const Key, T>>>
14 // class unordered_multimap
15 
16 // float max_load_factor() const;
17 // void max_load_factor(float mlf);
18 
19 #ifdef _LIBCPP_DEBUG
20 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
21 #endif
22 
23 #include <unordered_map>
24 #include <string>
25 #include <cassert>
26 
27 #include "min_allocator.h"
28 
main()29 int main()
30 {
31     {
32         typedef std::unordered_multimap<int, std::string> C;
33         typedef std::pair<int, std::string> P;
34         const C c;
35         assert(c.max_load_factor() == 1);
36     }
37     {
38         typedef std::unordered_multimap<int, std::string> C;
39         typedef std::pair<int, std::string> P;
40         C c;
41         assert(c.max_load_factor() == 1);
42         c.max_load_factor(2.5);
43         assert(c.max_load_factor() == 2.5);
44     }
45 #if __cplusplus >= 201103L
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         typedef std::pair<int, std::string> P;
50         const C c;
51         assert(c.max_load_factor() == 1);
52     }
53     {
54         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
55                             min_allocator<std::pair<const int, std::string>>> C;
56         typedef std::pair<int, std::string> P;
57         C c;
58         assert(c.max_load_factor() == 1);
59         c.max_load_factor(2.5);
60         assert(c.max_load_factor() == 2.5);
61     }
62 #endif
63 #if _LIBCPP_DEBUG_LEVEL >= 1
64     {
65         typedef std::unordered_multimap<int, std::string> C;
66         C c;
67         c.max_load_factor(0);
68         assert(false);
69     }
70 #endif
71 }
72