11 Apr
2010
11 Apr
'10
1:32 p.m.
The document at http://common-lisp.net/project/iterate/ uses this as an example of the superiority of iterate over loop: Finding the longest list in a list of lists: (iterate (for elt in list-of-lists) (finding elt maximizing (length elt))) whereas the example of how it can be done in loop is long and contorted. But loop can do (loop for elt in list-of-lists maximizing (length elt)) The example in 3.2 Named blocks may be better as a selling point: (iter outer (for i below (array-dimension ar 0)) (iter (for j below (array-dimension ar 1)) (in outer (collect (aref ar i j))))) showing that the outer loop can easily collect data produced in the inner loop. Eivind