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15	15	2. create an instance of the custom stream buffer class passing it the name of the file that must be opened. This operation will open the file much like the standard `std::basic_filebuf<>` template does.
16	16	3. create a std::istream object based on the custom stream buffer.
17		4. take the ReaderWriter object you found at step 1 and call its `readNode()` method passing it the stream object created at the previous step. This will read the file, and the `uflow()` method in your custom streambuffer will display progress information as bytes are read.
	17	4. take the !ReaderWriter object you found at step 1 and call its `readNode()` method passing it the stream object created at the previous step. This will read the file, and the `uflow()` method in your custom streambuffer will display progress information as bytes are read.
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19	19	== Source Code ==