Home | History | Annotate | Download | only in unord.map.cnstr
      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 // unordered_map(unordered_map&&)
     13 //        noexcept(is_nothrow_move_constructible<allocator_type>::value &&
     14 //                 is_nothrow_move_constructible<key_compare>::value);
     15 
     16 // This tests a conforming extension
     17 
     18 #include <unordered_map>
     19 #include <cassert>
     20 
     21 #include "../../../MoveOnly.h"
     22 #include "../../../test_allocator.h"
     23 
     24 template <class T>
     25 struct some_comp
     26 {
     27     typedef T value_type;
     28     some_comp(const some_comp&);
     29 };
     30 
     31 template <class T>
     32 struct some_hash
     33 {
     34     typedef T value_type;
     35     some_hash();
     36     some_hash(const some_hash&);
     37 };
     38 
     39 int main()
     40 {
     41 #if __has_feature(cxx_noexcept)
     42     {
     43         typedef std::unordered_map<MoveOnly, MoveOnly> C;
     44         static_assert(std::is_nothrow_move_constructible<C>::value, "");
     45     }
     46     {
     47         typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
     48                            std::equal_to<MoveOnly>, test_allocator<MoveOnly>> C;
     49         static_assert(std::is_nothrow_move_constructible<C>::value, "");
     50     }
     51     {
     52         typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
     53                           std::equal_to<MoveOnly>, other_allocator<MoveOnly>> C;
     54         static_assert(std::is_nothrow_move_constructible<C>::value, "");
     55     }
     56     {
     57         typedef std::unordered_map<MoveOnly, MoveOnly, some_hash<MoveOnly>> C;
     58         static_assert(!std::is_nothrow_move_constructible<C>::value, "");
     59     }
     60     {
     61         typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>,
     62                                                          some_comp<MoveOnly>> C;
     63         static_assert(!std::is_nothrow_move_constructible<C>::value, "");
     64     }
     65 #endif
     66 }
     67