40 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_STRSTREAM10 11// <strstream>12 13// class ostrstream14 15// void freeze(bool freezefl = true);16 17#include <strstream>18#include <cassert>19 20#include "test_macros.h"21 22int main(int, char**)23{24 {25 std::ostrstream out;26 out.freeze();27 assert(!out.fail());28 out << 'a';29 assert(out.fail());30 out.clear();31 out.freeze(false);32 out << 'a';33 out << char(0);34 assert(out.str() == std::string("a"));35 out.freeze(false);36 }37 38 return 0;39}40