wxSTREAM_READ_ERROR // generic read error
};
+const int wxEOF = -1;
+
// ============================================================================
// base stream classes: wxInputStream and wxOutputStream
// ============================================================================
// wxStreamBase: common (but non virtual!) base for all stream classes
// ---------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxStreamBase
+class WXDLLIMPEXP_BASE wxStreamBase : public wxObject
{
public:
wxStreamBase();
friend class wxStreamBuffer;
+ DECLARE_ABSTRACT_CLASS(wxStreamBase)
DECLARE_NO_COPY_CLASS(wxStreamBase)
};
// undefined), otherwise 1
virtual char Peek();
- // return one character from the stream, blocking until it appears if
+ // return one byte from the stream, blocking until it appears if
// necessary
//
- // if EOF, return value is undefined and LastRead() will return 0 and not 1
- char GetC();
+ // on success returns a value between 0 - 255, or wxEOF on EOF or error.
+ int GetC();
// read at most the given number of bytes from the stream
//
friend class wxStreamBuffer;
+ DECLARE_ABSTRACT_CLASS(wxInputStream)
DECLARE_NO_COPY_CLASS(wxInputStream)
};
friend class wxStreamBuffer;
+ DECLARE_ABSTRACT_CLASS(wxOutputStream)
DECLARE_NO_COPY_CLASS(wxOutputStream)
};
size_t m_currentPos;
+ DECLARE_DYNAMIC_CLASS(wxCountingOutputStream)
DECLARE_NO_COPY_CLASS(wxCountingOutputStream)
};
wxInputStream *m_parent_i_stream;
bool m_owns;
+ DECLARE_ABSTRACT_CLASS(wxFilterInputStream)
DECLARE_NO_COPY_CLASS(wxFilterInputStream)
};
wxOutputStream *m_parent_o_stream;
bool m_owns;
+ DECLARE_ABSTRACT_CLASS(wxFilterOutputStream)
DECLARE_NO_COPY_CLASS(wxFilterOutputStream)
};
// Buffer control
void ResetBuffer();
+ void Truncate();
// NB: the buffer must always be allocated with malloc() if takeOwn is
// true as it will be deallocated by free()