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/* stdiobuf class declaration.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL 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 of the License, or (at your
option) any later version.
The PPL 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 program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */
#ifndef PPL_stdiobuf_defs_hh
#define PPL_stdiobuf_defs_hh 1
#include "stdiobuf.types.hh"
#include <cstdio>
#include <streambuf>
class Parma_Polyhedra_Library::stdiobuf
: public std::basic_streambuf<char, std::char_traits<char> > {
public:
//! Constructor.
stdiobuf(FILE* file);
protected:
/*! \brief
Gets a character in case of underflow.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
virtual int_type underflow();
/*! \brief
In case of underflow, gets a character and advances the next pointer.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
virtual int_type uflow();
/*! \brief
Gets a sequence of characters.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.3.
*/
virtual std::streamsize xsgetn(char_type* s, std::streamsize n);
/*! \brief
Puts character back in case of backup underflow.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.4.
*/
virtual int_type pbackfail(int_type c = traits_type::eof());
/*! \brief
Writes a sequence of characters.
\remarks
Specified by ISO/IEC 14882:1998: 27.5.2.4.5.
*/
virtual std::streamsize xsputn(const char_type* s, std::streamsize n);
/*! \brief
Writes a character in case of overflow.
Specified by ISO/IEC 14882:1998: 27.5.2.4.5.
*/
virtual int_type overflow(int_type c);
/*! \brief
Synchronizes the stream buffer.
Specified by ISO/IEC 14882:1998: 27.5.2.4.2.
*/
virtual int sync();
private:
//! Character type of the streambuf.
typedef char char_type;
//! Traits type of the streambuf.
typedef std::char_traits<char_type> traits_type;
//! Integer type of the streambuf.
typedef traits_type::int_type int_type;
//! The encapsulated stdio file.
FILE* fp;
//! Buffer for the last character read.
int_type ungetc_buf;
};
#include "stdiobuf.inlines.hh"
#endif // !defined(PPL_stdiobuf_defs_hh)
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