1// 1999-08-16 bkoz 2 3// Copyright (C) 1999-2015 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 27.6.2.5.4 basic_ostream character inserters 21 22#include <string> 23#include <ostream> 24#include <sstream> 25#include <testsuite_hooks.h> 26 27// ostringstream and positioning, multiple writes 28// http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00326.html 29void test06() 30{ 31 bool test __attribute__((unused)) = true; 32 const char carray01[] = "mos def & talib kweli are black star"; 33 34 // normal 35 std::ostringstream ostr1("mos def"); 36 VERIFY( ostr1.str() == "mos def" ); 37 ostr1 << " & talib kweli"; // should overwrite first part of buffer 38 VERIFY( ostr1.str() == " & talib kweli" ); 39 ostr1 << " are black star"; // should append to string from above 40 VERIFY( ostr1.str() != carray01 ); 41 VERIFY( ostr1.str() == " & talib kweli are black star" ); 42 43 // appending 44 std::ostringstream ostr2("blackalicious", 45 std::ios_base::out | std::ios_base::ate); 46 VERIFY( ostr2.str() == "blackalicious" ); 47 ostr2 << " NIA "; // should not overwrite first part of buffer 48 VERIFY( ostr2.str() == "blackalicious NIA " ); 49 ostr2 << "4: deception (5:19)"; // should append to full string from above 50 VERIFY( ostr2.str() == "blackalicious NIA 4: deception (5:19)" ); 51} 52 53int main() 54{ 55 test06(); 56 return 0; 57} 58