copy.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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_map
15
16// unordered_map(const unordered_map& u);
17
18#include <unordered_map>
19#include <string>
20#include <cassert>
21
22#include "../../../test_compare.h"
23#include "../../../test_hash.h"
24#include "../../../test_allocator.h"
25
26int main()
27{
28    {
29        typedef std::unordered_map<int, std::string,
30                                   test_hash<std::hash<int> >,
31                                   test_compare<std::equal_to<int> >,
32                                   test_allocator<std::pair<const int, std::string> >
33                                   > C;
34        typedef std::pair<int, std::string> P;
35        P a[] =
36        {
37            P(1, "one"),
38            P(2, "two"),
39            P(3, "three"),
40            P(4, "four"),
41            P(1, "four"),
42            P(2, "four"),
43        };
44        C c0(a, a + sizeof(a)/sizeof(a[0]),
45            7,
46            test_hash<std::hash<int> >(8),
47            test_compare<std::equal_to<int> >(9),
48            test_allocator<std::pair<const int, std::string> >(10)
49           );
50        C c = c0;
51        assert(c.bucket_count() == 7);
52        assert(c.size() == 4);
53        assert(c.at(1) == "one");
54        assert(c.at(2) == "two");
55        assert(c.at(3) == "three");
56        assert(c.at(4) == "four");
57        assert(c.hash_function() == test_hash<std::hash<int> >(8));
58        assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
59        assert(c.get_allocator() ==
60               (test_allocator<std::pair<const int, std::string> >(10)));
61        assert(!c.empty());
62        assert(std::distance(c.begin(), c.end()) == c.size());
63        assert(std::distance(c.cbegin(), c.cend()) == c.size());
64        assert(c.load_factor() == (float)c.size()/c.bucket_count());
65        assert(c.max_load_factor() == 1);
66    }
67#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
68    {
69        typedef std::unordered_map<int, std::string,
70                                   test_hash<std::hash<int> >,
71                                   test_compare<std::equal_to<int> >,
72                                   other_allocator<std::pair<const int, std::string> >
73                                   > C;
74        typedef std::pair<int, std::string> P;
75        P a[] =
76        {
77            P(1, "one"),
78            P(2, "two"),
79            P(3, "three"),
80            P(4, "four"),
81            P(1, "four"),
82            P(2, "four"),
83        };
84        C c0(a, a + sizeof(a)/sizeof(a[0]),
85            7,
86            test_hash<std::hash<int> >(8),
87            test_compare<std::equal_to<int> >(9),
88            other_allocator<std::pair<const int, std::string> >(10)
89           );
90        C c = c0;
91        assert(c.bucket_count() == 7);
92        assert(c.size() == 4);
93        assert(c.at(1) == "one");
94        assert(c.at(2) == "two");
95        assert(c.at(3) == "three");
96        assert(c.at(4) == "four");
97        assert(c.hash_function() == test_hash<std::hash<int> >(8));
98        assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
99        assert(c.get_allocator() ==
100               (other_allocator<std::pair<const int, std::string> >(-2)));
101        assert(!c.empty());
102        assert(std::distance(c.begin(), c.end()) == c.size());
103        assert(std::distance(c.cbegin(), c.cend()) == c.size());
104        assert(c.load_factor() == (float)c.size()/c.bucket_count());
105        assert(c.max_load_factor() == 1);
106    }
107#endif
108}
109