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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 //                   const allocator_type& a);
     20 
     21 #include <unordered_set>
     22 #include <cassert>
     23 #include <cfloat>
     24 
     25 #include "test_iterators.h"
     26 #include "../../../test_compare.h"
     27 #include "../../../test_hash.h"
     28 #include "test_allocator.h"
     29 #include "min_allocator.h"
     30 
     31 int main()
     32 {
     33     {
     34         typedef std::unordered_multiset<int,
     35                                    test_hash<std::hash<int> >,
     36                                    test_compare<std::equal_to<int> >,
     37                                    test_allocator<int>
     38                                    > C;
     39         typedef int P;
     40         P a[] =
     41         {
     42             P(1),
     43             P(2),
     44             P(3),
     45             P(4),
     46             P(1),
     47             P(2)
     48         };
     49         C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])),
     50             7,
     51             test_hash<std::hash<int> >(8),
     52             test_compare<std::equal_to<int> >(9),
     53             test_allocator<int>(10)
     54            );
     55         assert(c.bucket_count() == 7);
     56         assert(c.size() == 6);
     57         assert(c.count(1) == 2);
     58         assert(c.count(2) == 2);
     59         assert(c.count(3) == 1);
     60         assert(c.count(4) == 1);
     61         assert(c.hash_function() == test_hash<std::hash<int> >(8));
     62         assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
     63         assert(c.get_allocator() == test_allocator<int>(10));
     64         assert(!c.empty());
     65         assert(std::distance(c.begin(), c.end()) == c.size());
     66         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     67         assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
     68         assert(c.max_load_factor() == 1);
     69     }
     70 #if __cplusplus >= 201103L
     71     {
     72         typedef std::unordered_multiset<int,
     73                                    test_hash<std::hash<int> >,
     74                                    test_compare<std::equal_to<int> >,
     75                                    min_allocator<int>
     76                                    > C;
     77         typedef int P;
     78         P a[] =
     79         {
     80             P(1),
     81             P(2),
     82             P(3),
     83             P(4),
     84             P(1),
     85             P(2)
     86         };
     87         C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])),
     88             7,
     89             test_hash<std::hash<int> >(8),
     90             test_compare<std::equal_to<int> >(9),
     91             min_allocator<int>()
     92            );
     93         assert(c.bucket_count() == 7);
     94         assert(c.size() == 6);
     95         assert(c.count(1) == 2);
     96         assert(c.count(2) == 2);
     97         assert(c.count(3) == 1);
     98         assert(c.count(4) == 1);
     99         assert(c.hash_function() == test_hash<std::hash<int> >(8));
    100         assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
    101         assert(c.get_allocator() == min_allocator<int>());
    102         assert(!c.empty());
    103         assert(std::distance(c.begin(), c.end()) == c.size());
    104         assert(std::distance(c.cbegin(), c.cend()) == c.size());
    105         assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
    106         assert(c.max_load_factor() == 1);
    107     }
    108 #endif
    109 }
    110