1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <strstream>
10 
11 // class strstream
12 
13 // strstreambuf* rdbuf() const;
14 
15 #include <strstream>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
main(int,char **)20 int main(int, char**)
21 {
22     {
23         char buf[] = "123 4.5 dog";
24         const std::strstream out(buf, 0);
25         std::strstreambuf* sb = out.rdbuf();
26         assert(sb->sputc('a') == 'a');
27         assert(buf == std::string("a23 4.5 dog"));
28     }
29 
30   return 0;
31 }
32