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(initializer_list<value_type> il, size_type n);
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 std::unordered_set<int,
32 test_hash<std::hash<int> >,
33 test_compare<std::equal_to<int> >,
34 test_allocator<int>
35 > C;
36 typedef int P;
37 C c({
38 P(1),
39 P(2),
40 P(3),
41 P(4),
42 P(1),
43 P(2)
44 },
45 7
46 );
47 assert(c.bucket_count() == 7);
48 assert(c.size() == 4);
49 assert(c.count(1) == 1);
50 assert(c.count(2) == 1);
51 assert(c.count(3) == 1);
52 assert(c.count(4) == 1);
53 assert(c.hash_function() == test_hash<std::hash<int> >());
54 assert(c.key_eq() == test_compare<std::equal_to<int> >());
55 assert(c.get_allocator() == test_allocator<int>());
56 assert(!c.empty());
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 std::unordered_set<int,
65 test_hash<std::hash<int> >,
66 test_compare<std::equal_to<int> >,
67 min_allocator<int>
68 > C;
69 typedef int P;
70 C c({
71 P(1),
72 P(2),
73 P(3),
74 P(4),
75 P(1),
76 P(2)
77 },
78 7
79 );
80 assert(c.bucket_count() == 7);
81 assert(c.size() == 4);
82 assert(c.count(1) == 1);
83 assert(c.count(2) == 1);
84 assert(c.count(3) == 1);
85 assert(c.count(4) == 1);
86 assert(c.hash_function() == test_hash<std::hash<int> >());
87 assert(c.key_eq() == test_compare<std::equal_to<int> >());
88 assert(c.get_allocator() == min_allocator<int>());
89 assert(!c.empty());
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