test/std/containers/unord/unord.set/unord.set.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_set>
  11
  12 // template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
  13 //           class Alloc = allocator<Value>>
  14 // class unordered_set
  15
  16 // unordered_set(size_type n, const hasher& hf, const key_equal& eql);
  17
  18 #include <unordered_set>
  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_set<NotConstructible,
  32                                    test_hash<std::hash<NotConstructible> >,
  33                                    test_compare<std::equal_to<NotConstructible> >,
  34                                    test_allocator<NotConstructible>
  35                                    > C;
  36         C c(7,
  37             test_hash<std::hash<NotConstructible> >(8),
  38             test_compare<std::equal_to<NotConstructible> >(9)
  39            );
  40         LIBCPP_ASSERT(c.bucket_count() == 7);
  41         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
  42         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
  43         assert(c.get_allocator() == (test_allocator<NotConstructible>()));
  44         assert(c.size() == 0);
  45         assert(c.empty());
  46         assert(std::distance(c.begin(), c.end()) == 0);
  47         assert(c.load_factor() == 0);
  48         assert(c.max_load_factor() == 1);
  49     }
  50 #if TEST_STD_VER >= 11
  51     {
  52         typedef std::unordered_set<NotConstructible,
  53                                    test_hash<std::hash<NotConstructible> >,
  54                                    test_compare<std::equal_to<NotConstructible> >,
  55                                    min_allocator<NotConstructible>
  56                                    > C;
  57         C c(7,
  58             test_hash<std::hash<NotConstructible> >(8),
  59             test_compare<std::equal_to<NotConstructible> >(9)
  60            );
  61         LIBCPP_ASSERT(c.bucket_count() == 7);
  62         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
  63         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
  64         assert(c.get_allocator() == (min_allocator<NotConstructible>()));
  65         assert(c.size() == 0);
  66         assert(c.empty());
  67         assert(std::distance(c.begin(), c.end()) == 0);
  68         assert(c.load_factor() == 0);
  69         assert(c.max_load_factor() == 1);
  70     }
  71 #endif
  72 }