ceph/src/boost/libs/functional/hash/test/hash_range_test.cpp

   1
   2 // Copyright 2005-2009 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 #if !defined(BOOST_HASH_TEST_EXTENSIONS)
   9
  10 int main() {}
  11
  12 #else
  13
  14 #ifdef BOOST_HASH_TEST_STD_INCLUDES
  15 #  include <functional>
  16 #else
  17 #  include <boost/functional/hash.hpp>
  18 #endif
  19
  20 #include <boost/detail/lightweight_test.hpp>
  21 #include <boost/limits.hpp>
  22 #include <vector>
  23
  24 void hash_range_tests()
  25 {
  26     std::vector<int> empty, values1, values2, values3, values4, values5;
  27     values1.push_back(0);
  28     values2.push_back(10);
  29     values3.push_back(10);
  30     values3.push_back(20);
  31     values4.push_back(15);
  32     values4.push_back(75);
  33     values5.push_back(10);
  34     values5.push_back(20);
  35     values5.push_back(15);
  36     values5.push_back(75);
  37     values5.push_back(10);
  38     values5.push_back(20);
  39
  40     std::vector<int> x;
  41
  42     std::size_t x_seed = 0;
  43     BOOST_TEST(x_seed == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  44
  45     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(empty.begin(), empty.end())
  46         == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  47     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(empty.begin(), empty.end())
  48         != BOOST_HASH_TEST_NAMESPACE::hash_range(values1.begin(), values1.end()));
  49
  50     x.push_back(10);
  51     BOOST_HASH_TEST_NAMESPACE::hash_combine(x_seed, 10);
  52     BOOST_TEST(x_seed == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  53
  54     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(empty.begin(), empty.end())
  55         != BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  56     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(values2.begin(), values2.end())
  57         == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  58
  59     x.push_back(20);
  60     BOOST_HASH_TEST_NAMESPACE::hash_combine(x_seed, 20);
  61     BOOST_TEST(x_seed == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  62
  63     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(empty.begin(), empty.end())
  64         != BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  65     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(values2.begin(), values2.end())
  66         != BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  67     BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_range(values3.begin(), values3.end())
  68         == BOOST_HASH_TEST_NAMESPACE::hash_range(x.begin(), x.end()));
  69
  70     std::size_t seed =
  71         BOOST_HASH_TEST_NAMESPACE::hash_range(values3.begin(), values3.end());
  72     BOOST_HASH_TEST_NAMESPACE::hash_range(seed, values4.begin(), values4.end());
  73     BOOST_HASH_TEST_NAMESPACE::hash_range(seed, x.begin(), x.end());
  74     BOOST_TEST(seed ==
  75         BOOST_HASH_TEST_NAMESPACE::hash_range(values5.begin(), values5.end()));
  76 }
  77
  78 int main()
  79 {
  80     hash_range_tests();
  81
  82     return boost::report_errors();
  83 }
  84
  85 #endif // TEST_EXTESNIONS