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 // front_insert_iterator
13 
14 // front_insert_iterator<Cont>&
15 //   operator=(const Cont::value_type& value);
16 
17 #include <iterator>
18 #include <list>
19 #include <cassert>
20 
21 template <class C>
22 void
23 test(C c)
24 {
25     const typename C::value_type v = typename C::value_type();
26     std::front_insert_iterator<C> i(c);
27     i = v;
28     assert(c.front() == v);
29 }
30 
31 class Copyable
32 {
33     int data_;
34 public:
35     Copyable() : data_(0) {}
36     ~Copyable() {data_ = -1;}
37 
38     friend bool operator==(const Copyable& x, const Copyable& y)
39         {return x.data_ == y.data_;}
40 };
41 
42 int main()
43 {
44     test(std::list<Copyable>());
45 }
46