init_size_hash.pass.cpp revision 6046aced820aaab4f14f2026531dd11d10690691 
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(initializer_list<value_type> il, size_type n, const hasher& hf);
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#ifdef _LIBCPP_MOVE
29    {
30        typedef std::unordered_map<int, std::string,
31                                   test_hash<std::hash<int> >,
32                                   test_compare<std::equal_to<int> >,
33                                   test_allocator<std::pair<const int, std::string> >
34                                   > C;
35        typedef std::pair<int, std::string> P;
36        C c({
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            7,
45            test_hash<std::hash<int> >(8)
46           );
47        assert(c.bucket_count() == 7);
48        assert(c.size() == 4);
49        assert(c.at(1) == "one");
50        assert(c.at(2) == "two");
51        assert(c.at(3) == "three");
52        assert(c.at(4) == "four");
53        assert(c.hash_function() == test_hash<std::hash<int> >(8));
54        assert(c.key_eq() == test_compare<std::equal_to<int> >());
55        assert(c.get_allocator() ==
56               (test_allocator<std::pair<const int, std::string> >()));
57        assert(!c.empty());
58        assert(std::distance(c.begin(), c.end()) == c.size());
59        assert(std::distance(c.cbegin(), c.cend()) == c.size());
60        assert(c.load_factor() == (float)c.size()/c.bucket_count());
61        assert(c.max_load_factor() == 1);
62    }
63#endif  // _LIBCPP_MOVE
64}
65