// { dg-options "-std=gnu++17" } // Copyright (C) 2013-2020 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . // inserters // NB: This file is predicated on sstreams, and ostreams // working, not to mention other major details like char_traits, and // all of the string_view class. #include #include #include #include // libstdc++/2830 void test09() { std::string_view foo{"peace\0\0\0& love"}; std::ostringstream oss1; oss1 << foo; VERIFY( oss1.str() == foo ); std::ostringstream oss2; oss2.width(20); oss2 << foo; VERIFY( oss2.str() != foo ); VERIFY( oss2.str().size() == 20 ); } int main() { test09(); return 0; }