test/std/containers/unord/unord.multimap/unord.multimap.cnstr/size_hash_equal.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // <unordered_map>
  11
  12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
  13 //           class Alloc = allocator<pair<const Key, T>>>
  14 // class unordered_multimap
  15
  16 // unordered_multimap(size_type n, const hasher& hf, const key_equal& eql);
  17
  18 #include <unordered_map>
  19 #include <cassert>
  20
  21 #include "test_macros.h"
  22 #include "../../../NotConstructible.h"
  23 #include "../../../test_compare.h"
  24 #include "../../../test_hash.h"
  25 #include "test_allocator.h"
  26 #include "min_allocator.h"
  27
  28 int main()
  29 {
  30     {
  31         typedef std::unordered_multimap<NotConstructible, NotConstructible,
  32                                    test_hash<std::hash<NotConstructible> >,
  33                                    test_compare<std::equal_to<NotConstructible> >,
  34                                    test_allocator<std::pair<const NotConstructible,
  35                                                                   NotConstructible> >
  36                                    > C;
  37         C c(7,
  38             test_hash<std::hash<NotConstructible> >(8),
  39             test_compare<std::equal_to<NotConstructible> >(9)
  40            );
  41         LIBCPP_ASSERT(c.bucket_count() == 7);
  42         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
  43         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
  44         assert(c.get_allocator() ==
  45                (test_allocator<std::pair<const NotConstructible, NotConstructible> >()));
  46         assert(c.size() == 0);
  47         assert(c.empty());
  48         assert(std::distance(c.begin(), c.end()) == 0);
  49         assert(c.load_factor() == 0);
  50         assert(c.max_load_factor() == 1);
  51     }
  52 #if TEST_STD_VER >= 11
  53     {
  54         typedef std::unordered_multimap<NotConstructible, NotConstructible,
  55                                    test_hash<std::hash<NotConstructible> >,
  56                                    test_compare<std::equal_to<NotConstructible> >,
  57                                    min_allocator<std::pair<const NotConstructible,
  58                                                                  NotConstructible> >
  59                                    > C;
  60         C c(7,
  61             test_hash<std::hash<NotConstructible> >(8),
  62             test_compare<std::equal_to<NotConstructible> >(9)
  63            );
  64         LIBCPP_ASSERT(c.bucket_count() == 7);
  65         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
  66         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
  67         assert(c.get_allocator() ==
  68                (min_allocator<std::pair<const NotConstructible, NotConstructible> >()));
  69         assert(c.size() == 0);
  70         assert(c.empty());
  71         assert(std::distance(c.begin(), c.end()) == 0);
  72         assert(c.load_factor() == 0);
  73         assert(c.max_load_factor() == 1);
  74     }
  75 #endif
  76 }