1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
// Copyright 2006-2009 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include "./config.hpp"
#include <boost/config.hpp>
#include <cstddef>
namespace test
{
template <class T>
struct custom
{
int value_;
std::size_t hash() const
{
return static_cast<std::size_t>(value_ * 10);
}
#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
friend std::size_t hash_value(custom const& x)
{
return x.hash();
}
#endif
custom(int x) : value_(x) {}
};
}
#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
namespace boost
{
template <class T>
std::size_t hash_value(test::custom<T> x)
{
return x.hash();
}
}
#endif
#include "./config.hpp"
#ifdef BOOST_HASH_TEST_EXTENSIONS
# ifdef BOOST_HASH_TEST_STD_INCLUDES
# include <functional>
# else
# include <boost/container_hash/hash.hpp>
# endif
#endif
#include <boost/core/lightweight_test.hpp>
#ifdef BOOST_HASH_TEST_EXTENSIONS
#include <vector>
#include <string>
#include <cctype>
void custom_tests()
{
BOOST_HASH_TEST_NAMESPACE::hash<test::custom<int> > custom_hasher;
BOOST_TEST(custom_hasher(10) == 100u);
test::custom<int> x(55);
BOOST_TEST(custom_hasher(x) == 550u);
{
using namespace BOOST_HASH_TEST_NAMESPACE;
BOOST_TEST(custom_hasher(x) == hash_value(x));
}
std::vector<test::custom<int> > custom_vector;
custom_vector.push_back(5);
custom_vector.push_back(25);
custom_vector.push_back(35);
std::size_t seed = 0;
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, test::custom<int>(5));
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, test::custom<int>(25));
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, test::custom<int>(35));
std::size_t seed2 = 0;
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed2, 50u);
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed2, 250u);
BOOST_HASH_TEST_NAMESPACE::hash_combine(seed2, 350u);
BOOST_TEST(seed == BOOST_HASH_TEST_NAMESPACE::hash_range(
custom_vector.begin(), custom_vector.end()));
BOOST_TEST(seed == seed2);
}
#endif // BOOST_HASH_TEST_EXTENSIONS
int main()
{
#ifdef BOOST_HASH_TEST_EXTENSIONS
custom_tests();
#endif
return boost::report_errors();
}
|
