ceph/src/boost/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   BOOST_TEST(sizeof(is_unordered_set_impl((int_set*)0)) == sizeof(true_type));
  72 }
  73
  74 #include <boost/unordered_set.hpp>
  75
  76 UNORDERED_AUTO_TEST (use_fwd_declared_trait) {
  77   boost::unordered_set<int> x;
  78   BOOST_TEST(sizeof(is_unordered_set_impl(&x)) == sizeof(true_type));
  79
  80   BOOST_TEST(sizeof(is_unordered_set_impl((int*)0)) == sizeof(false_type));
  81 }
  82
  83 UNORDERED_AUTO_TEST (use_set_fwd_declared_function) {
  84   int_set x, y;
  85   x.insert(1);
  86   y.insert(2);
  87   call_swap(x, y);
  88
  89   BOOST_TEST(y.find(1) != y.end());
  90   BOOST_TEST(y.find(2) == y.end());
  91
  92   BOOST_TEST(x.find(1) == x.end());
  93   BOOST_TEST(x.find(2) != x.end());
  94
  95   BOOST_TEST(!call_equals(x, y));
  96   BOOST_TEST(call_not_equals(x, y));
  97 }
  98
  99 UNORDERED_AUTO_TEST (use_multiset_fwd_declared_function) {
 100   int_multiset x, y;
 101   call_swap(x, y);
 102   BOOST_TEST(call_equals(x, y));
 103   BOOST_TEST(!call_not_equals(x, y));
 104 }
 105
 106 RUN_TESTS()