1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <strstream> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// class ostrstream 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// void freeze(bool freezefl = true); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <strstream> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::ostrstream out; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out.freeze(); 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(!out.fail()); 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out << 'a'; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(out.fail()); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out.clear(); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out.freeze(false); 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out << 'a'; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant out << char(0); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(out.str() == std::string("a")); 327112dae6acac544a0271a85d95342c583441e2d1Dan Albert out.freeze(false); 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 35