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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 // explicit unordered_multiset(const allocator_type& __a);
     17 
     18 #include <unordered_set>
     19 #include <cassert>
     20 
     21 #include "../../../NotConstructible.h"
     22 #include "../../../test_compare.h"
     23 #include "../../../test_hash.h"
     24 #include "test_allocator.h"
     25 #include "min_allocator.h"
     26 
     27 int main()
     28 {
     29     {
     30         typedef std::unordered_multiset<NotConstructible,
     31                                    test_hash<std::hash<NotConstructible> >,
     32                                    test_compare<std::equal_to<NotConstructible> >,
     33                                    test_allocator<NotConstructible>
     34                                    > C;
     35         C c(test_allocator<NotConstructible>(10));
     36         assert(c.bucket_count() == 0);
     37         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >());
     38         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
     39         assert(c.get_allocator() == test_allocator<NotConstructible>(10));
     40         assert(c.size() == 0);
     41         assert(c.empty());
     42         assert(std::distance(c.begin(), c.end()) == 0);
     43         assert(c.load_factor() == 0);
     44         assert(c.max_load_factor() == 1);
     45     }
     46 #if __cplusplus >= 201103L
     47     {
     48         typedef std::unordered_multiset<NotConstructible,
     49                                    test_hash<std::hash<NotConstructible> >,
     50                                    test_compare<std::equal_to<NotConstructible> >,
     51                                    min_allocator<NotConstructible>
     52                                    > C;
     53         C c(min_allocator<NotConstructible>{});
     54         assert(c.bucket_count() == 0);
     55         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >());
     56         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
     57         assert(c.get_allocator() == min_allocator<NotConstructible>());
     58         assert(c.size() == 0);
     59         assert(c.empty());
     60         assert(std::distance(c.begin(), c.end()) == 0);
     61         assert(c.load_factor() == 0);
     62         assert(c.max_load_factor() == 1);
     63     }
     64 #if _LIBCPP_STD_VER > 11
     65     {
     66         typedef NotConstructible T;
     67         typedef test_hash<std::hash<T>> HF;
     68         typedef test_compare<std::equal_to<T>> Comp;
     69         typedef test_allocator<T> A;
     70         typedef std::unordered_multiset<T, HF, Comp, A> C;
     71 
     72         A a(43);
     73         C c(3, a);
     74         assert(c.bucket_count() == 3);
     75         assert(c.hash_function() == HF());
     76         assert(c.key_eq() == Comp ());
     77         assert(c.get_allocator() == a);
     78         assert(!(c.get_allocator() == A()));
     79         assert(c.size() == 0);
     80         assert(c.empty());
     81         assert(std::distance(c.begin(), c.end()) == 0);
     82         assert(c.load_factor() == 0);
     83         assert(c.max_load_factor() == 1);
     84     }
     85     {
     86         typedef NotConstructible T;
     87         typedef test_hash<std::hash<T>> HF;
     88         typedef test_compare<std::equal_to<T>> Comp;
     89         typedef test_allocator<T> A;
     90         typedef std::unordered_multiset<T, HF, Comp, A> C;
     91 
     92         HF hf(42);
     93         A a(43);
     94         C c(4, hf, a);
     95         assert(c.bucket_count() == 4);
     96         assert(c.hash_function() == hf);
     97         assert(!(c.hash_function() == HF()));
     98         assert(c.key_eq() == Comp ());
     99         assert(c.get_allocator() == a);
    100         assert(!(c.get_allocator() == A()));
    101         assert(c.size() == 0);
    102         assert(c.empty());
    103         assert(std::distance(c.begin(), c.end()) == 0);
    104         assert(c.load_factor() == 0);
    105         assert(c.max_load_factor() == 1);
    106     }
    107 #endif
    108 #endif
    109 }
    110