Common Lisp the Language
2nd Edition
Common Lisp provides a number of iteration constructs. The loop construct provides a trivial iteration facility; it is little more than a progn with a branch from the bottom back to the top. The do and do* constructs provide a general iteration facility for controlling the variation of several variables on each cycle. For specialized iterations over the elements of a list or n consecutive integers dolist and dotimes are provided. The tagbody construct is the most general permitting arbitrary go statements within it. (The traditional prog construct is a synthesis of tagbody traditional prog construct is a synthesis of tagbodymostsRC="icons/next_motif.gif">