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 // <strstream>
11 
12 // class strstream
13 
14 // strstreambuf* rdbuf() const;
15 
16 #include <strstream>
17 #include <cassert>
18 
19 int main()
20 {
21     {
22         char buf[] = "123 4.5 dog";
23         const std::strstream out(buf, 0);
24         std::strstreambuf* sb = out.rdbuf();
25         assert(sb->sputc('a') == 'a');
26         assert(buf == std::string("a23 4.5 dog"));
27     }
28 }
29