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 // <iterator>
11 
12 // back_insert_iterator
13 
14 // requires CopyConstructible<Cont::value_type>
15 //   back_insert_iterator<Cont>&
16 //   operator=(Cont::value_type&& value);
17 
18 #include <iterator>
19 
20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
21 
22 #include <vector>
23 #include <memory>
24 #include <cassert>
25 
26 template <class C>
27 void
test(C c)28 test(C c)
29 {
30     std::back_insert_iterator<C> i(c);
31     i = typename C::value_type();
32     assert(c.back() == typename C::value_type());
33 }
34 
35 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
36 
main()37 int main()
38 {
39 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
40     test(std::vector<std::unique_ptr<int> >());
41 #endif
42 }
43