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 ostrstream 12 13 // void freeze(bool freezefl = true); 14 15 #include <strstream> 16 #include <cassert> 17 18 #include "test_macros.h" 19 main(int,char **)20int main(int, char**) 21 { 22 { 23 std::ostrstream out; 24 out.freeze(); 25 assert(!out.fail()); 26 out << 'a'; 27 assert(out.fail()); 28 out.clear(); 29 out.freeze(false); 30 out << 'a'; 31 out << char(0); 32 assert(out.str() == std::string("a")); 33 out.freeze(false); 34 } 35 36 return 0; 37 } 38