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Experimental BBS Explossion 3
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MYSTREAM.H
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1993-06-14
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106 lines
===========================================================================
BBS: The Abacus * HST/DS * Potterville MI
Date: 06-13-93 (12:20) Number: 138
From: DAVID NUGENT Refer#: NONE
To: ALL Recvd: NO
Subj: [07 of 12] Mystream.h Conf: (37) C++ Langua
---------------------------------------------------------------------------
// Mystream.h
// iostream interface for class Myio
// Defines the following classes:
// Mystreambuf derived from streambuf - buffer management & I/O interface
// Mystreambase base class used for initialisation & object reference
// Myiostream customised iostream, derived from iostream/Mystreambase
//
// Written by David L Nugent, June 1993
//
# if !defined(_Mystream_h)
# define _Mystream_h 1
# include <iostream.h>
# include "Myio.h"
//
// Mystreambuf
// This is the class which does all the actual I/O
// handling and (optional) buffer management
//
class Mystreambuf : public streambuf
{
public:
Mystreambuf (Myio * mPtr);
protected:
virtual int overflow (int = EOF);
virtual int underflow ();
virtual int sync ();
private:
Myio * mptr; // Points to the Myio instance to
// which this stream is attached
char _back[2]; // Holder for putback
};
class Mystreambase : public virtual ios
{
public:
Mystreambase (Myio * mPtr);
Mystreambuf * rdbuf (void);
protected:
Mystreambuf mystreambuf;
};
inline
Mystreambase::Mystreambase (Myio * mPtr)
: mystreambuf (mPtr)
{}
inline Mystreambuf *
Mystreambase::rdbuf (void)
{ return &mystreambuf; }
class Mystream : public Mystreambase, public iostream
{
public:
Mystream (Myio * mPtr);
~Mystream (void);
};
//
// class Mystream constructor
// This uses Mystreambase to set up the Mystreambuf
// which can then be used to initialise iostream.
//
inline
Mystream::Mystream (Myio * m)
: Mystreambase (m), iostream (rdbuf())
{}
inline
Mystream::~Mystream (void)
{}
# endif // _Mystream_h
--- MaltEd 1.0.b5
* Origin: Unique Computing Pty Ltd (3:632/348)
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