ceph/src/boost/libs/container_hash/test/hash_std_tuple_test.cpp

   1
   2 // Copyright 2012 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 #ifdef BOOST_HASH_TEST_EXTENSIONS
   9 #  ifdef BOOST_HASH_TEST_STD_INCLUDES
  10 #    include <functional>
  11 #  else
  12 #    include <boost/container_hash/hash.hpp>
  13 #  endif
  14 #endif
  15
  16 #include <boost/config.hpp>
  17 #include <boost/core/lightweight_test.hpp>
  18
  19 #if defined(BOOST_HASH_TEST_EXTENSIONS) && !defined(BOOST_NO_CXX11_HDR_TUPLE)
  20 #define TEST_TUPLE
  21 #include <tuple>
  22 #include <vector>
  23 #endif
  24
  25 #ifdef TEST_TUPLE
  26
  27 template <typename T>
  28 void tuple_tests(T const& v) {
  29     boost::hash<typename T::value_type> hf;
  30     for(typename T::const_iterator i = v.begin(); i != v.end(); ++i) {
  31         for(typename T::const_iterator j = v.begin(); j != v.end(); ++j) {
  32             if (i != j)
  33                 BOOST_TEST(hf(*i) != hf(*j));
  34             else
  35                 BOOST_TEST(hf(*i) == hf(*j));
  36         }
  37     }
  38 }
  39
  40 void empty_tuple_test() {
  41     boost::hash<std::tuple<> > empty_tuple_hash;
  42     std::tuple<> empty_tuple;
  43     BOOST_TEST(empty_tuple_hash(empty_tuple) == boost::hash_value(empty_tuple));
  44 }
  45
  46 void int_tuple_test() {
  47     std::vector<std::tuple<int> > int_tuples;
  48     int_tuples.push_back(std::make_tuple(0));
  49     int_tuples.push_back(std::make_tuple(1));
  50     int_tuples.push_back(std::make_tuple(2));
  51     tuple_tests(int_tuples);
  52 }
  53
  54 void int_string_tuple_test() {
  55     std::vector<std::tuple<int, std::string> > int_string_tuples;
  56     int_string_tuples.push_back(std::make_tuple(0, std::string("zero")));
  57     int_string_tuples.push_back(std::make_tuple(1, std::string("one")));
  58     int_string_tuples.push_back(std::make_tuple(2, std::string("two")));
  59     int_string_tuples.push_back(std::make_tuple(0, std::string("one")));
  60     int_string_tuples.push_back(std::make_tuple(1, std::string("zero")));
  61     int_string_tuples.push_back(std::make_tuple(0, std::string("")));
  62     int_string_tuples.push_back(std::make_tuple(1, std::string("")));
  63     tuple_tests(int_string_tuples);
  64 }
  65
  66 #endif // TEST_TUPLE
  67
  68 int main()
  69 {
  70 #ifdef TEST_TUPLE
  71     empty_tuple_test();
  72     int_tuple_test();
  73     int_string_tuple_test();
  74 #endif
  75
  76     return boost::report_errors();
  77 }