Subversion Repositories Kolibri OS

/*

 * Copyright (c) 1998

 * Silicon Graphics Computer Systems, Inc.

 *

 * Permission to use, copy, modify, distribute and sell this software

 * and its documentation for any purpose is hereby granted without fee,

 * provided that the above copyright notice appear in all copies and

 * that both that copyright notice and this permission notice appear

 * in supporting documentation.  Silicon Graphics makes no

 * representations about the suitability of this software for any

 * purpose.  It is provided "as is" without express or implied warranty.

 */

// WARNING: The classes defined in this header are DEPRECATED.  This

// header is defined in section D.7.1 of the C++ standard, and it

// MAY BE REMOVED in a future standard revision.  You should use the

// header  instead.

#ifndef __SGI_STL_STRSTREAM

#define __SGI_STL_STRSTREAM

#include "backward_warning.h"

#include 

#include 

#include 

#include 

#include 

namespace std

{

//----------------------------------------------------------------------

// Class strstreambuf, a streambuf class that manages an array of char.

// Note that this class is not a template.

class strstreambuf : public basic_streambuf >

{

public:                         // Types.

  typedef char_traits              _Traits;

  typedef basic_streambuf _Base;

public:                         // Constructor, destructor

  explicit strstreambuf(streamsize __initial_capacity = 0);

  strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*));

  strstreambuf(char* __get, streamsize __n, char* __put = 0);

  strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0);

  strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0);

  strstreambuf(const char* __get, streamsize __n);

  strstreambuf(const signed char* __get, streamsize __n);

  strstreambuf(const unsigned char* __get, streamsize __n);

  virtual ~strstreambuf();

public:                         // strstreambuf operations.

  void freeze(bool = true);

  char* str();

  int pcount() const;

protected:                      // Overridden virtual member functions.

  virtual int_type overflow(int_type __c  = _Traits::eof());

  virtual int_type pbackfail(int_type __c = _Traits::eof());

  virtual int_type underflow();

  virtual _Base* setbuf(char* __buf, streamsize __n);

  virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,

                           ios_base::openmode __mode

                                      = ios_base::in | ios_base::out);

  virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode

                                      = ios_base::in | ios_base::out);

private:                        // Helper functions.

  // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun.

  char* _M_alloc(size_t);

  void  _M_free(char*);

  // Helper function used in constructors.

  void _M_setup(char* __get, char* __put, streamsize __n);

private:                        // Data members.

  void* (*_M_alloc_fun)(size_t);

  void  (*_M_free_fun)(void*);

  bool _M_dynamic  : 1;

  bool _M_frozen   : 1;

  bool _M_constant : 1;

};

//----------------------------------------------------------------------

// Class istrstream, an istream that manages a strstreambuf.

class istrstream : public basic_istream

{

public:

  explicit istrstream(char*);

  explicit istrstream(const char*);

  istrstream(char* , streamsize);

  istrstream(const char*, streamsize);

  virtual ~istrstream();

  strstreambuf* rdbuf() const;

  char* str();

private:

  strstreambuf _M_buf;

};

//----------------------------------------------------------------------

// Class ostrstream

class ostrstream : public basic_ostream

{

public:

  ostrstream();

  ostrstream(char*, int, ios_base::openmode = ios_base::out);

  virtual ~ostrstream();

  strstreambuf* rdbuf() const;

  void freeze(bool = true);

  char* str();

  int pcount() const;

private:

  strstreambuf _M_buf;

};

//----------------------------------------------------------------------

// Class strstream

class strstream : public basic_iostream

{

public:

  typedef char                        char_type;

  typedef char_traits::int_type int_type;

  typedef char_traits::pos_type pos_type;

  typedef char_traits::off_type off_type;

  strstream();

  strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);

  virtual ~strstream();

  strstreambuf* rdbuf() const;

  void freeze(bool = true);

  int pcount() const;

  char* str();

private:

  strstreambuf _M_buf;

};

} // namespace std

#endif /* __SGI_STL_STRSTREAM */

// Local Variables:

// mode:C++

// End: