aecf642c78
2003-07-24 Benjamin Kosnik <bkoz@redhat.com> * testsuite/*: Change __gnu_cxx_test to __gnu_test. From-SVN: r69761
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// -*- C++ -*-
|
|
// Testing filebuf for the C++ library testsuite.
|
|
//
|
|
// Copyright (C) 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.
|
|
//
|
|
// As a special exception, you may use this file as part of a free software
|
|
// library without restriction. Specifically, if other files instantiate
|
|
// templates or use macros or inline functions from this file, or you compile
|
|
// this file and link it with other files to produce an executable, this
|
|
// file does not by itself cause the resulting executable to be covered by
|
|
// the GNU General Public License. This exception does not however
|
|
// invalidate any other reasons why the executable file might be covered by
|
|
// the GNU General Public License.
|
|
|
|
#ifndef _GLIBCXX_TESTSUITE_IO_H
|
|
#define _GLIBCXX_TESTSUITE_IO_H
|
|
|
|
#include <fstream>
|
|
|
|
namespace __gnu_test
|
|
{
|
|
// Used to verify the constraints/requirements on get and put areas
|
|
// as defined in
|
|
// 27.5.1 - Stream buffer requirements: get and put areas
|
|
// 27.8.1.1 - Template class basic_filebuf p 3
|
|
// If the file is not open (ios_base::in) -> input seq. cannot be read
|
|
// If the file is not open (ios_base::out) -> output seq. cannot be written
|
|
// Joint file position
|
|
// 27.8.1.4 - Overridden virtual functions p9
|
|
// If unbuffered, pbase == pptr == NULL
|
|
class constraint_filebuf: public std::filebuf
|
|
{
|
|
public:
|
|
bool
|
|
write_position()
|
|
{
|
|
bool two = this->pptr() != NULL;
|
|
bool one = this->pptr() < this->epptr();
|
|
return one && two;
|
|
}
|
|
|
|
bool
|
|
read_position()
|
|
{
|
|
bool one = this->gptr() != NULL;
|
|
bool two = this->gptr() < this->egptr();
|
|
|
|
return one && two;
|
|
}
|
|
|
|
bool
|
|
unbuffered()
|
|
{
|
|
bool one = this->pbase() == NULL;
|
|
bool two = this->pptr() == NULL;
|
|
return one && two;
|
|
}
|
|
|
|
};
|
|
}; // namespace __gnu_test
|
|
|
|
#endif // _GLIBCXX_TESTSUITE_IO_H
|
|
|