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_set>
11
12 // template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
13 // class Alloc = allocator<Value>>
14 // class unordered_set
15
16 // unordered_set& operator=(initializer_list<value_type> il);
17
18 #include <unordered_set>
19 #include <cassert>
20 #include <cfloat>
21
22 #include "../../../test_compare.h"
23 #include "../../../test_hash.h"
24 #include "test_allocator.h"
25 #include "min_allocator.h"
26
main()27 int main()
28 {
29 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
30 {
31 typedef test_allocator<int> A;
32 typedef std::unordered_set<int,
33 test_hash<std::hash<int> >,
34 test_compare<std::equal_to<int> >,
35 A
36 > C;
37 typedef int P;
38 C c = {
39 P(4),
40 P(1),
41 P(2)
42 };
43 c = {
44 P(1),
45 P(2),
46 P(3),
47 P(4),
48 P(1),
49 P(2)
50 };
51 assert(c.bucket_count() >= 5);
52 assert(c.size() == 4);
53 assert(c.count(1) == 1);
54 assert(c.count(2) == 1);
55 assert(c.count(3) == 1);
56 assert(c.count(4) == 1);
57 assert(std::distance(c.begin(), c.end()) == c.size());
58 assert(std::distance(c.cbegin(), c.cend()) == c.size());
59 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
60 assert(c.max_load_factor() == 1);
61 }
62 #if __cplusplus >= 201103L
63 {
64 typedef min_allocator<int> A;
65 typedef std::unordered_set<int,
66 test_hash<std::hash<int> >,
67 test_compare<std::equal_to<int> >,
68 A
69 > C;
70 typedef int P;
71 C c = {
72 P(4),
73 P(1),
74 P(2)
75 };
76 c = {
77 P(1),
78 P(2),
79 P(3),
80 P(4),
81 P(1),
82 P(2)
83 };
84 assert(c.bucket_count() >= 5);
85 assert(c.size() == 4);
86 assert(c.count(1) == 1);
87 assert(c.count(2) == 1);
88 assert(c.count(3) == 1);
89 assert(c.count(4) == 1);
90 assert(std::distance(c.begin(), c.end()) == c.size());
91 assert(std::distance(c.cbegin(), c.cend()) == c.size());
92 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
93 assert(c.max_load_factor() == 1);
94 }
95 #endif
96 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
97 }
98