1// Copyright (C) 2005, 2009 Free Software Foundation 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 3, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING3. If not see 16// <http://www.gnu.org/licenses/>. 17 18// 27.6.2.5.4 basic_ostream character inserters 19 20#include <string> 21#include <ostream> 22#include <sstream> 23#include <testsuite_hooks.h> 24 25// ostringstream and positioning, multiple writes 26// http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00326.html 27void test06() 28{ 29 bool test __attribute__((unused)) = true; 30 const wchar_t carray01[] = L"mos def & talib kweli are black star"; 31 32 // normal 33 std::wostringstream ostr1(L"mos def"); 34 VERIFY( ostr1.str() == L"mos def" ); 35 ostr1 << L" & talib kweli"; // should overwrite first part of buffer 36 VERIFY( ostr1.str() == L" & talib kweli" ); 37 ostr1 << L" are black star"; // should append to string from above 38 VERIFY( ostr1.str() != carray01 ); 39 VERIFY( ostr1.str() == L" & talib kweli are black star" ); 40 41 // appending 42 std::wostringstream ostr2(L"blackalicious", 43 std::ios_base::out | std::ios_base::ate); 44 VERIFY( ostr2.str() == L"blackalicious" ); 45 ostr2 << L" NIA "; // should not overwrite first part of buffer 46 VERIFY( ostr2.str() == L"blackalicious NIA " ); 47 ostr2 << L"4: deception (5:19)"; // should append to full string from above 48 VERIFY( ostr2.str() == L"blackalicious NIA 4: deception (5:19)" ); 49} 50 51int main() 52{ 53 test06(); 54 return 0; 55} 56