Composes a seekable file with buffered binary input. A seek causes the input buffer to be cleared.
Composes a seekable file with buffered binary output. A seek causes the output buffer to be flushed first.
Tango Dual License: 3-Clause BSD License / Academic Free License v3.0. See LICENSE_TANGO.txt for details.
Copyright (c) 2007 Kris Bell. Some parts copyright (c) 2009-2016 dunnhumby Germany GmbH. All rights reserved.
Initial release: Nov 2007