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      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_multiset
     15 
     16 // template <class InputIterator>
     17 //     unordered_multiset(InputIterator first, InputIterator last, size_type n,
     18 //                   const hasher& hf, const key_equal& eql);
     19 
     20 #include <unordered_set>
     21 #include <cassert>
     22 #include <cfloat>
     23 
     24 #include "test_iterators.h"
     25 #include "../../../test_compare.h"
     26 #include "../../../test_hash.h"
     27 #include "../../../test_allocator.h"
     28 
     29 int main()
     30 {
     31     {
     32         typedef std::unordered_multiset<int,
     33                                    test_hash<std::hash<int> >,
     34                                    test_compare<std::equal_to<int> >,
     35                                    test_allocator<int>
     36                                    > C;
     37         typedef int P;
     38         P a[] =
     39         {
     40             P(1),
     41             P(2),
     42             P(3),
     43             P(4),
     44             P(1),
     45             P(2)
     46         };
     47         C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])),
     48             7,
     49             test_hash<std::hash<int> >(8),
     50             test_compare<std::equal_to<int> >(9)
     51            );
     52         assert(c.bucket_count() == 7);
     53         assert(c.size() == 6);
     54         assert(c.count(1) == 2);
     55         assert(c.count(2) == 2);
     56         assert(c.count(3) == 1);
     57         assert(c.count(4) == 1);
     58         assert(c.hash_function() == test_hash<std::hash<int> >(8));
     59         assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
     60         assert(c.get_allocator() == test_allocator<int>());
     61         assert(!c.empty());
     62         assert(std::distance(c.begin(), c.end()) == c.size());
     63         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     64         assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
     65         assert(c.max_load_factor() == 1);
     66     }
     67 }
     68