1// 1999-07-01 bkoz 2 3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009 4// Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21// 21.3.7.9 inserters and extractors 22 23// NB: This file is predicated on sstreams, istreams, and ostreams 24// working, not to mention other major details like char_traits, and 25// all of the string class. 26 27#include <string> 28#include <sstream> 29#include <testsuite_hooks.h> 30 31// istringstream/stringbuf extractor properly size buffer based on 32// actual, not allocated contents (string.size() vs. string.capacity()). 33// http://gcc.gnu.org/ml/libstdc++/1999-q4/msg00049.html 34void test06(void) 35{ 36 bool test __attribute__((unused)) = true; 37 38 typedef std::string::size_type size_type; 39 std::string str01("@silent"); 40 size_type i01 = str01.size(); 41 size_type i02 = str01.capacity(); 42 str01.erase(0, 1); 43 size_type i03 = str01.size(); 44 size_type i04 = str01.capacity(); 45 VERIFY( i01 - 1 == i03 ); 46 VERIFY( i02 >= i04 ); 47 48 std::istringstream is(str01); 49 std::string str02; 50 is >> str02 >> std::ws; 51 size_type i05 = str02.size(); 52 size_type i06 = str02.capacity(); 53 VERIFY( i05 == i03 ); 54 VERIFY( i06 <= i04 ); 55} 56 57int main() 58{ 59 test06(); 60 return 0; 61} 62