To avoid having to modify the DefaultCPU and
DefaultGPU header-files, and allow data to be shared between
these classes, they are both virtually derived from
DefaultBase. Whenever the programmer feels that it is
necessary to declare additional datamembers (that are not suitable as
parameters), this interface can be used to do so. Keep in mind though
that this data will not be available on the GPU, unless copied
manually. The example (Section 4) illustrates one such
application.
Joren Heit
2013-12-17
