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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_map
     15 
     16 // iterator insert(const_iterator p, const value_type& x);
     17 
     18 #if _LIBCPP_DEBUG >= 1
     19 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
     20 #endif
     21 
     22 #include <unordered_map>
     23 #include <cassert>
     24 
     25 #include "min_allocator.h"
     26 
     27 int main()
     28 {
     29     {
     30         typedef std::unordered_map<double, int> C;
     31         typedef C::iterator R;
     32         typedef C::value_type P;
     33         C c;
     34         C::const_iterator e = c.end();
     35         R r = c.insert(e, P(3.5, 3));
     36         assert(c.size() == 1);
     37         assert(r->first == 3.5);
     38         assert(r->second == 3);
     39 
     40         r = c.insert(c.end(), P(3.5, 4));
     41         assert(c.size() == 1);
     42         assert(r->first == 3.5);
     43         assert(r->second == 3);
     44 
     45         r = c.insert(c.end(), P(4.5, 4));
     46         assert(c.size() == 2);
     47         assert(r->first == 4.5);
     48         assert(r->second == 4);
     49 
     50         r = c.insert(c.end(), P(5.5, 4));
     51         assert(c.size() == 3);
     52         assert(r->first == 5.5);
     53         assert(r->second == 4);
     54     }
     55 #if TEST_STD_VER >= 11
     56     {
     57         typedef std::unordered_map<double, int, std::hash<double>, std::equal_to<double>,
     58                             min_allocator<std::pair<const double, int>>> C;
     59         typedef C::iterator R;
     60         typedef C::value_type P;
     61         C c;
     62         C::const_iterator e = c.end();
     63         R r = c.insert(e, P(3.5, 3));
     64         assert(c.size() == 1);
     65         assert(r->first == 3.5);
     66         assert(r->second == 3);
     67 
     68         r = c.insert(c.end(), P(3.5, 4));
     69         assert(c.size() == 1);
     70         assert(r->first == 3.5);
     71         assert(r->second == 3);
     72 
     73         r = c.insert(c.end(), P(4.5, 4));
     74         assert(c.size() == 2);
     75         assert(r->first == 4.5);
     76         assert(r->second == 4);
     77 
     78         r = c.insert(c.end(), P(5.5, 4));
     79         assert(c.size() == 3);
     80         assert(r->first == 5.5);
     81         assert(r->second == 4);
     82     }
     83 #endif
     84 #if _LIBCPP_DEBUG >= 1
     85     {
     86         typedef std::unordered_map<double, int> C;
     87         typedef C::iterator R;
     88         typedef C::value_type P;
     89         C c;
     90         C c2;
     91         C::const_iterator e = c2.end();
     92         P v(3.5, 3);
     93         R r = c.insert(e, v);
     94         assert(false);
     95     }
     96 #endif
     97 }
     98