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
make(int n)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 
testtest42     explicit test(const test_allocator<int>& a) : base(a) {}
testtest43     test(const value_compare& comp, const test_allocator<int>& a)
44         : base(comp, c, a) {}
testtest45     test(const value_compare& comp, const container_type& c,
46         const test_allocator<int>& a) : base(comp, c, a) {}
testtest47     test(const value_compare& comp, container_type&& c,
48          const test_allocator<int>& a) : base(comp, std::move(c), a) {}
testtest49     test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
get_allocatortest50     test_allocator<int> get_allocator() {return c.get_allocator();}
51 
52     using base::c;
53 };
54 
55 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
56 
main()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