d-1.3.37.9.5"></a>Combiner Interface</h3></div></div></div>
<p> The Combiner interface was chosen to mimic a call to an
    algorithm in the C++ standard library. It is felt that by viewing
    slot call results as merely a sequence of values accessed by input
    iterators, the combiner interface would be most natural to a
    proficient C++ programmer. Competing interface design generally
    required the combiners to be constructed to conform to an
    interface that would be customized for (and limited 