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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_map>
     11 
     12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
     13 //           class Alloc = allocator<pair<const Key, T>>>
     14 // class unordered_multimap
     15 
     16 // iterator       begin()        {return __table_.begin();}
     17 // iterator       end()          {return __table_.end();}
     18 // const_iterator begin()  const {return __table_.begin();}
     19 // const_iterator end()    const {return __table_.end();}
     20 // const_iterator cbegin() const {return __table_.begin();}
     21 // const_iterator cend()   const {return __table_.end();}
     22 
     23 #include <unordered_map>
     24 #include <string>
     25 #include <cassert>
     26 
     27 #include "min_allocator.h"
     28 
     29 int main()
     30 {
     31     {
     32         typedef std::unordered_multimap<int, std::string> C;
     33         typedef std::pair<int, std::string> P;
     34         P a[] =
     35         {
     36             P(1, "one"),
     37             P(2, "two"),
     38             P(3, "three"),
     39             P(4, "four"),
     40             P(1, "four"),
     41             P(2, "four"),
     42         };
     43         C c(a, a + sizeof(a)/sizeof(a[0]));
     44         assert(c.bucket_count() >= 7);
     45         assert(c.size() == 6);
     46         assert(std::distance(c.begin(), c.end()) == c.size());
     47         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     48         C::iterator i;
     49         i = c.begin();
     50         i->second = "ONE";
     51         assert(i->second == "ONE");
     52     }
     53     {
     54         typedef std::unordered_multimap<int, std::string> C;
     55         typedef std::pair<int, std::string> P;
     56         P a[] =
     57         {
     58             P(1, "one"),
     59             P(2, "two"),
     60             P(3, "three"),
     61             P(4, "four"),
     62             P(1, "four"),
     63             P(2, "four"),
     64         };
     65         const C c(a, a + sizeof(a)/sizeof(a[0]));
     66         assert(c.bucket_count() >= 7);
     67         assert(c.size() == 6);
     68         assert(std::distance(c.begin(), c.end()) == c.size());
     69         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     70         C::const_iterator i;
     71     }
     72 #if __cplusplus >= 201103L
     73     {
     74         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
     75                             min_allocator<std::pair<const int, std::string>>> C;
     76         typedef std::pair<int, std::string> P;
     77         P a[] =
     78         {
     79             P(1, "one"),
     80             P(2, "two"),
     81             P(3, "three"),
     82             P(4, "four"),
     83             P(1, "four"),
     84             P(2, "four"),
     85         };
     86         C c(a, a + sizeof(a)/sizeof(a[0]));
     87         assert(c.bucket_count() >= 7);
     88         assert(c.size() == 6);
     89         assert(std::distance(c.begin(), c.end()) == c.size());
     90         assert(std::distance(c.cbegin(), c.cend()) == c.size());
     91         C::iterator i;
     92         i = c.begin();
     93         i->second = "ONE";
     94         assert(i->second == "ONE");
     95     }
     96     {
     97         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
     98                             min_allocator<std::pair<const int, std::string>>> C;
     99         typedef std::pair<int, std::string> P;
    100         P a[] =
    101         {
    102             P(1, "one"),
    103             P(2, "two"),
    104             P(3, "three"),
    105             P(4, "four"),
    106             P(1, "four"),
    107             P(2, "four"),
    108         };
    109         const C c(a, a + sizeof(a)/sizeof(a[0]));
    110         assert(c.bucket_count() >= 7);
    111         assert(c.size() == 6);
    112         assert(std::distance(c.begin(), c.end()) == c.size());
    113         assert(std::distance(c.cbegin(), c.cend()) == c.size());
    114         C::const_iterator i;
    115     }
    116 #endif
    117 #if _LIBCPP_STD_VER > 11
    118     { // N3644 testing
    119         typedef std::unordered_multimap<int,double> C;
    120         C::iterator ii1{}, ii2{};
    121         C::iterator ii4 = ii1;
    122         C::const_iterator cii{};
    123         assert ( ii1 == ii2 );
    124         assert ( ii1 == ii4 );
    125 
    126         assert (!(ii1 != ii2 ));
    127 
    128         assert ( (ii1 == cii ));
    129         assert ( (cii == ii1 ));
    130         assert (!(ii1 != cii ));
    131         assert (!(cii != ii1 ));
    132     }
    133 #endif
    134 }
    135