1// 1999-06-08 bkoz 2 3// Copyright (C) 1999, 2003 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 2, 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 COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// 21.3 template class basic_string 22 23#include <string> 24#include <stdexcept> 25#include <testsuite_hooks.h> 26 27// Do a quick sanity check on known problems with element access and 28// ref-counted strings. These should all pass, regardless of the 29// underlying string implementation, of course. 30bool test01(void) 31{ 32 bool test __attribute__((unused)) = true; 33 typedef std::string::size_type csize_type; 34 typedef std::string::iterator siterator; 35 typedef std::string::reverse_iterator sriterator; 36 csize_type csz01, csz02; 37 siterator it1; 38 sriterator rit1; 39 40 std::string str01("montara beach, half moon bay"); 41 const std::string str02("ocean beach, san francisco"); 42 std::string str03; 43 44 // 21.3 p 5 45 46 // References, pointers, and iterators referring to the elements of 47 // a basic_string may be invalidated by the following uses of that 48 // basic_string object: 49 50 // ... 51 52 // Susequent to any of the above uses except the forms of insert() 53 // and erase() which return iterators, the first call to non-const 54 // member functions operator[](), at(), begin(), rbegin(), end(), or 55 // rend() 56 57 str03 = str01; 58 it1 = str01.begin(); 59 *it1 = 'x'; 60 VERIFY( str01[0] == 'x' ); 61 VERIFY( str03[0] == 'm' ); 62 63 str03 = str01; 64 csz01 = str01.size(); 65 rit1 = str01.rbegin(); // NB: Pointing at one-past the end, so ... 66 *rit1 = 'z'; // ... but it's taken care of here 67 VERIFY( str01[csz01 - 1] == 'z' ); 68 VERIFY( str03[csz01 - 1] == 'y' ); 69 70 str03 = str01; 71 csz01 = str01.size(); 72 std::string::reference r1 = str01.at(csz01 - 2); 73 VERIFY( str03 == str01 ); 74 r1 = 'd'; 75 VERIFY( str01[csz01 - 2] == 'd' ); 76 VERIFY( str03[csz01 - 2] == 'a' ); 77 78 str03 = str01; 79 csz01 = str01.size(); 80 std::string::reference r2 = str01[csz01 - 3]; 81 VERIFY( str03 == str01 ); 82 r2 = 'w'; 83 VERIFY( str01[csz01 - 3] == 'w' ); 84 VERIFY( str03[csz01 - 3] == 'b' ); 85 86 str03 = str01; 87 csz02 = str01.size(); 88 it1 = str01.end(); 89 VERIFY( str03 == str01 ); 90 --it1; 91 *it1 = 'q'; 92 VERIFY( str01[csz02 - 1] == 'q' ); 93 VERIFY( str03[csz02 - 1] == 'z' ); 94 95 str03 = str01; 96 rit1 = str01.rend(); 97 VERIFY( str03 == str01 ); 98 --rit1; 99 *rit1 = 'p'; 100 VERIFY( str01[0] == 'p' ); 101 VERIFY( str03[0] == 'x' ); 102 103 // need to also test for const begin/const end 104 return test; 105} 106 107int main() 108{ 109 test01(); 110 return 0; 111} 112