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// Backward-compat support -*- C++ -*-

// Copyright (C) 2001, 2002, 2004 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// 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.

/*

 * 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:

    void freeze(bool = true);

    char* str();

    int pcount() const;

  protected:

    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:

    strstreambuf&

    operator=(const strstreambuf&);

    strstreambuf(const strstreambuf&);

    // 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