1 | |
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2 | // Copyright Daniel James 2005-2006. Use, modification, and distribution are |
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3 | // subject to the Boost Software License, Version 1.0. (See accompanying |
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4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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5 | |
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6 | #include <boost/config.hpp> |
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7 | #include <cstddef> |
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8 | |
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9 | namespace test |
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10 | { |
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11 | struct custom |
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12 | { |
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13 | int value_; |
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14 | |
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15 | std::size_t hash() const |
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16 | { |
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17 | return value_ * 10; |
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18 | } |
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19 | |
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20 | #if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) |
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21 | friend std::size_t hash_value(custom const& x ) |
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22 | { |
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23 | return x.hash(); |
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24 | } |
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25 | #endif |
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26 | |
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27 | custom(int x) : value_(x) {} |
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28 | }; |
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29 | } |
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30 | |
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31 | #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) |
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32 | namespace boost |
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33 | { |
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34 | std::size_t hash_value(test::custom x) |
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35 | { |
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36 | return x.hash(); |
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37 | } |
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38 | } |
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39 | #endif |
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40 | |
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41 | #include "./config.hpp" |
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42 | |
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43 | #ifdef TEST_EXTENSIONS |
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44 | # ifdef TEST_STD_INCLUDES |
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45 | # include <functional> |
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46 | # else |
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47 | # include <boost/functional/hash.hpp> |
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48 | # endif |
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49 | #endif |
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50 | |
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51 | #include <boost/detail/lightweight_test.hpp> |
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52 | |
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53 | #ifdef TEST_EXTENSIONS |
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54 | |
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55 | #include <vector> |
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56 | #include <string> |
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57 | #include <cctype> |
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58 | |
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59 | void custom_tests() |
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60 | { |
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61 | HASH_NAMESPACE::hash<test::custom> custom_hasher; |
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62 | BOOST_TEST(custom_hasher(10) == 100u); |
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63 | test::custom x(55); |
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64 | BOOST_TEST(custom_hasher(x) == 550u); |
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65 | |
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66 | { |
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67 | using namespace HASH_NAMESPACE; |
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68 | BOOST_TEST(custom_hasher(x) == hash_value(x)); |
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69 | } |
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70 | |
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71 | std::vector<test::custom> custom_vector; |
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72 | custom_vector.push_back(5); |
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73 | custom_vector.push_back(25); |
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74 | custom_vector.push_back(35); |
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75 | |
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76 | std::size_t seed = 0; |
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77 | HASH_NAMESPACE::hash_combine(seed, test::custom(5)); |
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78 | HASH_NAMESPACE::hash_combine(seed, test::custom(25)); |
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79 | HASH_NAMESPACE::hash_combine(seed, test::custom(35)); |
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80 | |
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81 | std::size_t seed2 = 0; |
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82 | HASH_NAMESPACE::hash_combine(seed2, 50u); |
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83 | HASH_NAMESPACE::hash_combine(seed2, 250u); |
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84 | HASH_NAMESPACE::hash_combine(seed2, 350u); |
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85 | |
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86 | BOOST_TEST(seed == |
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87 | HASH_NAMESPACE::hash_range(custom_vector.begin(), custom_vector.end())); |
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88 | BOOST_TEST(seed == seed2); |
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89 | } |
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90 | |
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91 | #endif // TEST_EXTENSIONS |
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92 | |
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93 | int main() |
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94 | { |
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95 | #ifdef TEST_EXTENSIONS |
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96 | custom_tests(); |
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97 | #endif |
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98 | return boost::report_errors(); |
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99 | } |
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