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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 // <queue>
     11 
     12 // template <class Alloc>
     13 //     priority_queue(priority_queue&& q, const Alloc& a);
     14 
     15 #include <queue>
     16 #include <cassert>
     17 
     18 #include "../../../MoveOnly.h"
     19 
     20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     21 
     22 template <class C>
     23 C
     24 make(int n)
     25 {
     26     C c;
     27     for (int i = 0; i < n; ++i)
     28         c.push_back(MoveOnly(i));
     29     return c;
     30 }
     31 
     32 #include "test_allocator.h"
     33 
     34 template <class T>
     35 struct test
     36     : public std::priority_queue<T, std::vector<T, test_allocator<T> > >
     37 {
     38     typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
     39     typedef typename base::container_type container_type;
     40     typedef typename base::value_compare value_compare;
     41 
     42     explicit test(const test_allocator<int>& a) : base(a) {}
     43     test(const value_compare& comp, const test_allocator<int>& a)
     44         : base(comp, c, a) {}
     45     test(const value_compare& comp, const container_type& c,
     46         const test_allocator<int>& a) : base(comp, c, a) {}
     47     test(const value_compare& comp, container_type&& c,
     48          const test_allocator<int>& a) : base(comp, std::move(c), a) {}
     49     test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
     50     test_allocator<int> get_allocator() {return c.get_allocator();}
     51 
     52     using base::c;
     53 };
     54 
     55 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
     56 
     57 int main()
     58 {
     59 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     60     test<MoveOnly> qo(std::less<MoveOnly>(),
     61                       make<std::vector<MoveOnly, test_allocator<MoveOnly> > >(5),
     62                       test_allocator<MoveOnly>(2));
     63     test<MoveOnly> q(std::move(qo), test_allocator<MoveOnly>(6));
     64     assert(q.size() == 5);
     65     assert(q.c.get_allocator() == test_allocator<MoveOnly>(6));
     66     assert(q.top() == MoveOnly(4));
     67 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
     68 }
     69