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