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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 // unordered_multiset(initializer_list<value_type> il, size_type n,
     17 //               const hasher& hf);
     18 
     19 #include <unordered_set>
     20 #include <cassert>
     21 #include <cfloat>
     22 
     23 #include "../../../test_compare.h"
     24 #include "../../../test_hash.h"
     25 #include "../../../test_allocator.h"
     26 
     27 int main()
     28 {
     29 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
     30     {
     31         typedef std::unordered_multiset<int,
     32                                    test_hash<std::hash<int> >,
     33                                    test_compare<std::equal_to<int> >,
     34                                    test_allocator<int>
     35                                    > C;
     36         typedef int P;
     37         C c({
     38                 P(1),
     39                 P(2),
     40                 P(3),
     41                 P(4),
     42                 P(1),
     43                 P(2)
     44             },
     45             7,
     46             test_hash<std::hash<int> >(8)
     47            );
     48         assert(c.bucket_count() == 7);
     49         assert(c.size() == 6);
     50         assert(c.count(1) == 2);
     51         assert(c.count(2) == 2);
     52         assert(c.count(3) == 1);
     53         assert(c.count(4) == 1);
     54         assert(c.hash_function() == test_hash<std::hash<int> >(8));
     55         assert(c.key_eq() == test_compare<std::equal_to<int> >());
     56         assert(c.get_allocator() == test_allocator<int>());
     57         assert(!c.empty());
     58         assert(std::distance(c.begin(), c.end()) == c.size());
     59         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     60         assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
     61         assert(c.max_load_factor() == 1);
     62     }
     63 #endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
     64 }
     65