1// 1999-07-01 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// 21.3.7.9 inserters and extractors 21 22// NB: This file is predicated on sstreams, istreams, and ostreams 23// working, not to mention other major details like char_traits, and 24// all of the string class. 25 26#include <string> 27#include <sstream> 28#include <testsuite_hooks.h> 29 30// istringstream/stringbuf extractor properly size buffer based on 31// actual, not allocated contents (string.size() vs. string.capacity()). 32// http://gcc.gnu.org/ml/libstdc++/1999-q4/msg00049.html 33void test06(void) 34{ 35 bool test __attribute__((unused)) = true; 36 37 typedef std::string::size_type size_type; 38 std::string str01("@silent"); 39 size_type i01 = str01.size(); 40 size_type i02 = str01.capacity(); 41 str01.erase(0, 1); 42 size_type i03 = str01.size(); 43 size_type i04 = str01.capacity(); 44 VERIFY( i01 - 1 == i03 ); 45 VERIFY( i02 >= i04 ); 46 47 std::istringstream is(str01); 48 std::string str02; 49 is >> str02 >> std::ws; 50 size_type i05 = str02.size(); 51 size_type i06 = str02.capacity(); 52 VERIFY( i05 == i03 ); 53 VERIFY( i06 <= i04 ); 54} 55 56int main() 57{ 58 test06(); 59 return 0; 60} 61