// 2005-06-07 Benjamin Kosnik // Copyright (C) 2005, 2006, 2009 // 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 // . #include #include #include double test_stringstream() { double result; const char* source = "1918"; std::stringstream s; s << source; std::string tmp = s.str(); std::streambuf* sb = s.rdbuf(); int i = sb->in_avail(); if (i) { s >> result; } else { throw std::runtime_error("conversion failed"); } return result; } int main () { test_stringstream(); return 0; }