| 1 | |
|---|---|
| 2 | // Copyright 2006-2009 Daniel James. |
| 3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 5 | |
| 6 | #include "./config.hpp" |
| 7 | |
| 8 | #include <boost/config.hpp> |
| 9 | #include <cstddef> |
| 10 | |
| 11 | namespace test |
| 12 | { |
| 13 | template <class T> |
| 14 | struct custom |
| 15 | { |
| 16 | int value_; |
| 17 | |
| 18 | std::size_t hash() const |
| 19 | { |
| 20 | return static_cast<std::size_t>(value_ * 10); |
| 21 | } |
| 22 | |
| 23 | #if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) |
| 24 | friend std::size_t hash_value(custom const& x) |
| 25 | { |
| 26 | return x.hash(); |
| 27 | } |
| 28 | #endif |
| 29 | |
| 30 | custom(int x) : value_(x) {} |
| 31 | }; |
| 32 | } |
| 33 | |
| 34 | #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) |
| 35 | namespace boost |
| 36 | { |
| 37 | template <class T> |
| 38 | std::size_t hash_value(test::custom<T> x) |
| 39 | { |
| 40 | return x.hash(); |
| 41 | } |
| 42 | } |
| 43 | #endif |
| 44 | |
| 45 | #include "./config.hpp" |
| 46 | |
| 47 | #ifdef BOOST_HASH_TEST_EXTENSIONS |
| 48 | # ifdef BOOST_HASH_TEST_STD_INCLUDES |
| 49 | # include <functional> |
| 50 | # else |
| 51 | # include <boost/container_hash/hash.hpp> |
| 52 | # endif |
| 53 | #endif |
| 54 | |
| 55 | #include <boost/core/lightweight_test.hpp> |
| 56 | |
| 57 | #ifdef BOOST_HASH_TEST_EXTENSIONS |
| 58 | |
| 59 | #include <vector> |
| 60 | #include <string> |
| 61 | #include <cctype> |
| 62 | |
| 63 | void custom_tests() |
| 64 | { |
| 65 | BOOST_HASH_TEST_NAMESPACE::hash<test::custom<int> > custom_hasher; |
| 66 | BOOST_TEST(custom_hasher(10) == 100u); |
| 67 | test::custom<int> x(55); |
| 68 | BOOST_TEST(custom_hasher(x) == 550u); |
| 69 | |
| 70 | { |
| 71 | using namespace BOOST_HASH_TEST_NAMESPACE; |
| 72 | BOOST_TEST(custom_hasher(x) == hash_value(x)); |
| 73 | } |
| 74 | |
| 75 | std::vector<test::custom<int> > custom_vector; |
| 76 | custom_vector.push_back(x: 5); |
| 77 | custom_vector.push_back(x: 25); |
| 78 | custom_vector.push_back(x: 35); |
| 79 | |
| 80 | std::size_t seed = 0; |
| 81 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, v: test::custom<int>(5)); |
| 82 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, v: test::custom<int>(25)); |
| 83 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed, v: test::custom<int>(35)); |
| 84 | |
| 85 | std::size_t seed2 = 0; |
| 86 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed&: seed2, v: 50u); |
| 87 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed&: seed2, v: 250u); |
| 88 | BOOST_HASH_TEST_NAMESPACE::hash_combine(seed&: seed2, v: 350u); |
| 89 | |
| 90 | BOOST_TEST(seed == BOOST_HASH_TEST_NAMESPACE::hash_range( |
| 91 | custom_vector.begin(), custom_vector.end())); |
| 92 | BOOST_TEST(seed == seed2); |
| 93 | } |
| 94 | |
| 95 | #endif // BOOST_HASH_TEST_EXTENSIONS |
| 96 | |
| 97 | int main() |
| 98 | { |
| 99 | #ifdef BOOST_HASH_TEST_EXTENSIONS |
| 100 | custom_tests(); |
| 101 | #endif |
| 102 | return boost::report_errors(); |
| 103 | } |
| 104 |