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 // class ostreambuf_iterator
13 
14 // ostreambuf_iterator<charT,traits>& operator++();
15 // ostreambuf_iterator<charT,traits>& operator++(int);
16 
17 #include <iterator>
18 #include <sstream>
19 #include <cassert>
20 
21 int main()
22 {
23     {
24         std::ostringstream outf;
25         std::ostreambuf_iterator<char> i(outf);
26         std::ostreambuf_iterator<char>& iref = ++i;
27         assert(&iref == &i);
28         std::ostreambuf_iterator<char>& iref2 = i++;
29         assert(&iref2 == &i);
30     }
31     {
32         std::wostringstream outf;
33         std::ostreambuf_iterator<wchar_t> i(outf);
34         std::ostreambuf_iterator<wchar_t>& iref = ++i;
35         assert(&iref == &i);
36         std::ostreambuf_iterator<wchar_t>& iref2 = i++;
37         assert(&iref2 == &i);
38     }
39 }
40