range_size.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
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// template <class InputIterator>
17//     unordered_map(InputIterator first, InputIterator last, size_type n);
18
19#include <unordered_map>
20#include <string>
21#include <cassert>
22
23#include "../../../iterators.h"
24#include "../../../NotConstructible.h"
25#include "../../../test_compare.h"
26#include "../../../test_hash.h"
27#include "../../../test_allocator.h"
28
29int main()
30{
31    {
32        typedef std::unordered_map<int, std::string,
33                                   test_hash<std::hash<int> >,
34                                   test_compare<std::equal_to<int> >,
35                                   test_allocator<std::pair<const int, std::string> >
36                                   > C;
37        typedef std::pair<int, std::string> P;
38        P a[] =
39        {
40            P(1, "one"),
41            P(2, "two"),
42            P(3, "three"),
43            P(4, "four"),
44            P(1, "four"),
45            P(2, "four"),
46        };
47        C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])),
48            10
49           );
50        assert(c.bucket_count() == 11);
51        assert(c.size() == 4);
52        assert(c.at(1) == "one");
53        assert(c.at(2) == "two");
54        assert(c.at(3) == "three");
55        assert(c.at(4) == "four");
56        assert(c.hash_function() == test_hash<std::hash<int> >());
57        assert(c.key_eq() == test_compare<std::equal_to<int> >());
58        assert(c.get_allocator() ==
59               (test_allocator<std::pair<const int, std::string> >()));
60        assert(!c.empty());
61        assert(std::distance(c.begin(), c.end()) == c.size());
62        assert(std::distance(c.cbegin(), c.cend()) == c.size());
63        assert(c.load_factor() == (float)c.size()/c.bucket_count());
64        assert(c.max_load_factor() == 1);
65    }
66}
67