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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [21_strings/] [basic_string/] [element_access/] [char/] [2.cc] - Rev 424
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// 1999-06-08 bkoz // Copyright (C) 1999, 2003, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. // 21.3 template class basic_string #include <string> #include <stdexcept> #include <testsuite_hooks.h> // Do a quick sanity check on known problems with element access and // ref-counted strings. These should all pass, regardless of the // underlying string implementation, of course. bool test01(void) { bool test __attribute__((unused)) = true; typedef std::string::size_type csize_type; typedef std::string::iterator siterator; typedef std::string::reverse_iterator sriterator; csize_type csz01, csz02; siterator it1; sriterator rit1; std::string str01("montara beach, half moon bay"); const std::string str02("ocean beach, san francisco"); std::string str03; // 21.3 p 5 // References, pointers, and iterators referring to the elements of // a basic_string may be invalidated by the following uses of that // basic_string object: // ... // Susequent to any of the above uses except the forms of insert() // and erase() which return iterators, the first call to non-const // member functions operator[](), at(), begin(), rbegin(), end(), or // rend() str03 = str01; it1 = str01.begin(); *it1 = 'x'; VERIFY( str01[0] == 'x' ); VERIFY( str03[0] == 'm' ); str03 = str01; csz01 = str01.size(); rit1 = str01.rbegin(); // NB: Pointing at one-past the end, so ... *rit1 = 'z'; // ... but it's taken care of here VERIFY( str01[csz01 - 1] == 'z' ); VERIFY( str03[csz01 - 1] == 'y' ); str03 = str01; csz01 = str01.size(); std::string::reference r1 = str01.at(csz01 - 2); VERIFY( str03 == str01 ); r1 = 'd'; VERIFY( str01[csz01 - 2] == 'd' ); VERIFY( str03[csz01 - 2] == 'a' ); str03 = str01; csz01 = str01.size(); std::string::reference r2 = str01[csz01 - 3]; VERIFY( str03 == str01 ); r2 = 'w'; VERIFY( str01[csz01 - 3] == 'w' ); VERIFY( str03[csz01 - 3] == 'b' ); str03 = str01; csz02 = str01.size(); it1 = str01.end(); VERIFY( str03 == str01 ); --it1; *it1 = 'q'; VERIFY( str01[csz02 - 1] == 'q' ); VERIFY( str03[csz02 - 1] == 'z' ); str03 = str01; rit1 = str01.rend(); VERIFY( str03 == str01 ); --rit1; *rit1 = 'p'; VERIFY( str01[0] == 'p' ); VERIFY( str03[0] == 'x' ); // need to also test for const begin/const end return test; } int main() { test01(); return 0; }
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