1 Introduction
loop
macro in that it allows you to use defined loop keywords to control the parameters of the iteration. Loop keywords are not true Common Lisp keywords; they are symbols that are recognized by the Loop Facility and that provide such capabilities as controlling the direction of iteration, accumulating values inside the body of a loop, and evaluating expressions that precede or follow the loop body. If you do not use any loop keywords, the Loop Facility is identical to the Common Lisploop
macro; that is, it executes the loop body repeatedly. Thus, the Loop Facility is an upward-compatible extension to the Common Lisploop
macro.
Generated with Harlequin WebMaker