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 strstreambuf
13
14// void freeze(bool freezefl = true);
15
16#include <strstream>
17#include <cassert>
18
19int main()
20{
21    {
22        std::strstreambuf sb;
23        sb.freeze(true);
24        assert(sb.sputc('a') == EOF);
25        sb.freeze(false);
26        assert(sb.sputc('a') == 'a');
27    }
28}
29