Started over.

io/COutputStreamFilter.h

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+#ifndef COUTPUTSTREAMFILTER_H
+#define COUTPUTSTREAMFILTER_H
+
+#include "IOutputStream.h"
+
+class COutputStreamFilter : public IOutputStream {
+  public:
+	COutputStreamFilter(IOutputStream*, bool adoptStream = true);
+	~COutputStreamFilter();
+
+	// manipulators
+
+	// accessors
+
+	// IOutputStream overrides
+	virtual void		close() throw(XIO) = 0;
+	virtual UInt32		write(const void*, UInt32 count) throw(XIO) = 0;
+	virtual void		flush() throw(XIO) = 0;
+
+  protected:
+	IOutputStream*		getStream() const throw();
+
+  private:
+	IOutputStream*		m_stream;
+	bool				m_adopted;
+};
+
+#endif