libs/unordered/test/unordered/fwd_set_test.cpp

   1
   2 // Copyright 2008-2009 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 // clang-format off
   7 #include "../helpers/prefix.hpp"
   8 #include <boost/unordered/unordered_set_fwd.hpp>
   9 #include "../helpers/postfix.hpp"
  10 // clang-format on
  11
  12 struct true_type
  13 {
  14     char x[100];
  15 };
  16 struct false_type
  17 {
  18     char x;
  19 };
  20
  21 false_type is_unordered_set_impl(void*);
  22
  23 template <class Value, class Hash, class Pred, class Alloc>
  24 true_type is_unordered_set_impl(
  25     boost::unordered_set<Value, Hash, Pred, Alloc>*);
  26
  27 template <typename T>
  28 void call_swap(boost::unordered_set<T>& x, boost::unordered_set<T>& y)
  29 {
  30     swap(x, y);
  31 }
  32
  33 template <typename T>
  34 bool call_equals(boost::unordered_set<T>& x, boost::unordered_set<T>& y)
  35 {
  36     return x == y;
  37 }
  38
  39 template <typename T>
  40 bool call_not_equals(boost::unordered_set<T>& x, boost::unordered_set<T>& y)
  41 {
  42     return x != y;
  43 }
  44
  45 template <typename T>
  46 void call_swap(boost::unordered_multiset<T>& x, boost::unordered_multiset<T>& y)
  47 {
  48     swap(x, y);
  49 }
  50
  51 template <typename T>
  52 bool call_equals(
  53     boost::unordered_multiset<T>& x, boost::unordered_multiset<T>& y)
  54 {
  55     return x == y;
  56 }
  57
  58 template <typename T>
  59 bool call_not_equals(
  60     boost::unordered_multiset<T>& x, boost::unordered_multiset<T>& y)
  61 {
  62     return x != y;
  63 }
  64
  65 #include "../helpers/test.hpp"
  66
  67 typedef boost::unordered_set<int> int_set;
  68 typedef boost::unordered_multiset<int> int_multiset;
  69
  70 UNORDERED_AUTO_TEST(use_fwd_declared_trait_without_definition)
  71 {
  72     BOOST_TEST(sizeof(is_unordered_set_impl((int_set*)0)) == sizeof(true_type));
  73 }
  74
  75 #include <boost/unordered_set.hpp>
  76
  77 UNORDERED_AUTO_TEST(use_fwd_declared_trait)
  78 {
  79     boost::unordered_set<int> x;
  80     BOOST_TEST(sizeof(is_unordered_set_impl(&x)) == sizeof(true_type));
  81
  82     BOOST_TEST(sizeof(is_unordered_set_impl((int*)0)) == sizeof(false_type));
  83 }
  84
  85 UNORDERED_AUTO_TEST(use_set_fwd_declared_function)
  86 {
  87     int_set x, y;
  88     x.insert(1);
  89     y.insert(2);
  90     call_swap(x, y);
  91
  92     BOOST_TEST(y.find(1) != y.end());
  93     BOOST_TEST(y.find(2) == y.end());
  94
  95     BOOST_TEST(x.find(1) == x.end());
  96     BOOST_TEST(x.find(2) != x.end());
  97
  98     BOOST_TEST(!call_equals(x, y));
  99     BOOST_TEST(call_not_equals(x, y));
 100 }
 101
 102 UNORDERED_AUTO_TEST(use_multiset_fwd_declared_function)
 103 {
 104     int_multiset x, y;
 105     call_swap(x, y);
 106     BOOST_TEST(call_equals(x, y));
 107     BOOST_TEST(!call_not_equals(x, y));
 108 }
 109
 110 RUN_TESTS()