Last value buffer

Sometimes only the last result from a processing pipeline is off interest, and we wish to `hold' this last result for use as required in further processing. This can be done with the `hold' component, shown in Figure 16. Any `Get' from the pipe returns the last result `Put' into it. A typical application of the `hold' component is to access the latest result of some other computation. e.g. the estimation of some parameter.

Figure 16: Hold data.

Normal classes:

DPHoldC

Hold value until replaced by put.

Normal functions:

DPHold(DataT &)