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diff --git a/reference/C/CONTRIB/SNIP/mystream.h b/reference/C/CONTRIB/SNIP/mystream.h
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+++ b/reference/C/CONTRIB/SNIP/mystream.h
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+// 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