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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 // public:
     17 //     // types
     18 //     typedef Key                                                        key_type;
     19 //     typedef T                                                          mapped_type;
     20 //     typedef Hash                                                       hasher;
     21 //     typedef Pred                                                       key_equal;
     22 //     typedef Alloc                                                      allocator_type;
     23 //     typedef pair<const key_type, mapped_type>                          value_type;
     24 //     typedef value_type&                                                reference;
     25 //     typedef const value_type&                                          const_reference;
     26 //     typedef typename allocator_traits<allocator_type>::pointer         pointer;
     27 //     typedef typename allocator_traits<allocator_type>::const_pointer   const_pointer;
     28 //     typedef typename allocator_traits<allocator_type>::size_type       size_type;
     29 //     typedef typename allocator_traits<allocator_type>::difference_type difference_type;
     30 
     31 #include <unordered_map>
     32 #include <type_traits>
     33 
     34 #include "min_allocator.h"
     35 
     36 int main()
     37 {
     38     {
     39         typedef std::unordered_map<char, short> C;
     40         static_assert((std::is_same<C::key_type, char>::value), "");
     41         static_assert((std::is_same<C::mapped_type, short>::value), "");
     42         static_assert((std::is_same<C::hasher, std::hash<C::key_type> >::value), "");
     43         static_assert((std::is_same<C::key_equal, std::equal_to<C::key_type> >::value), "");
     44         static_assert((std::is_same<C::allocator_type, std::allocator<C::value_type> >::value), "");
     45         static_assert((std::is_same<C::value_type, std::pair<const C::key_type, C::mapped_type> >::value), "");
     46         static_assert((std::is_same<C::reference, C::value_type&>::value), "");
     47         static_assert((std::is_same<C::const_reference, const C::value_type&>::value), "");
     48         static_assert((std::is_same<C::pointer, C::value_type*>::value), "");
     49         static_assert((std::is_same<C::const_pointer, const C::value_type*>::value), "");
     50         static_assert((std::is_same<C::size_type, std::size_t>::value), "");
     51         static_assert((std::is_same<C::difference_type, std::ptrdiff_t>::value), "");
     52     }
     53 #if TEST_STD_VER >= 11
     54     {
     55         typedef std::unordered_map<char, short, std::hash<char>, std::equal_to<char>,
     56                             min_allocator<std::pair<const char, short>>> C;
     57         static_assert((std::is_same<C::key_type, char>::value), "");
     58         static_assert((std::is_same<C::mapped_type, short>::value), "");
     59         static_assert((std::is_same<C::hasher, std::hash<C::key_type> >::value), "");
     60         static_assert((std::is_same<C::key_equal, std::equal_to<C::key_type> >::value), "");
     61         static_assert((std::is_same<C::allocator_type, min_allocator<C::value_type> >::value), "");
     62         static_assert((std::is_same<C::value_type, std::pair<const C::key_type, C::mapped_type> >::value), "");
     63         static_assert((std::is_same<C::reference, C::value_type&>::value), "");
     64         static_assert((std::is_same<C::const_reference, const C::value_type&>::value), "");
     65         static_assert((std::is_same<C::pointer, min_pointer<C::value_type>>::value), "");
     66         static_assert((std::is_same<C::const_pointer, min_pointer<const C::value_type>>::value), "");
     67     //  min_allocator doesn't have a size_type, so one gets synthesized
     68         static_assert((std::is_same<C::size_type, std::make_unsigned<C::difference_type>::type>::value), "");
     69         static_assert((std::is_same<C::difference_type, std::ptrdiff_t>::value), "");
     70     }
     71 #endif
     72 }
     73