In this chapter, we show two important techniques. First, we define methods for built-in generic functions — in this case, for the functions +, <, and =. Second, we define multimethods. We describe how method dispatch works for multimethods.
N Feinberg/S E Keene/R Mathews/P Tucker Withington, DYLAN PROGRAMMING, (c) 1997 Harlequin Inc. Reproduced by permission of Addison-Wesley Longman Publishing Company, Inc. All rights reserved. No further copying, downloading or transmitting of this material is allowed without the prior written permission of the publisher.