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// 1999-06-08 bkoz
// Copyright (C) 1999, 2003 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 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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