find_const.pass.cpp revision 061d0cc4db18d17bf01ed14c5db0be098205bd47 
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_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// const_iterator find(const key_type& k) const;
17
18#include <unordered_map>
19#include <string>
20#include <cassert>
21
22#include "min_allocator.h"
23
24int main()
25{
26    {
27        typedef std::unordered_map<int, std::string> C;
28        typedef std::pair<int, std::string> P;
29        P a[] =
30        {
31            P(10, "ten"),
32            P(20, "twenty"),
33            P(30, "thirty"),
34            P(40, "fourty"),
35            P(50, "fifty"),
36            P(60, "sixty"),
37            P(70, "seventy"),
38            P(80, "eighty"),
39        };
40        const C c(std::begin(a), std::end(a));
41        C::const_iterator i = c.find(30);
42        assert(i->first == 30);
43        assert(i->second == "thirty");
44        i = c.find(5);
45        assert(i == c.cend());
46    }
47#if __cplusplus >= 201103L
48    {
49        typedef std::unordered_map<int, std::string, std::hash<int>, std::equal_to<int>,
50                            min_allocator<std::pair<const int, std::string>>> C;
51        typedef std::pair<int, std::string> P;
52        P a[] =
53        {
54            P(10, "ten"),
55            P(20, "twenty"),
56            P(30, "thirty"),
57            P(40, "fourty"),
58            P(50, "fifty"),
59            P(60, "sixty"),
60            P(70, "seventy"),
61            P(80, "eighty"),
62        };
63        const C c(std::begin(a), std::end(a));
64        C::const_iterator i = c.find(30);
65        assert(i->first == 30);
66        assert(i->second == "thirty");
67        i = c.find(5);
68        assert(i == c.cend());
69    }
70#endif
71}
72