Hi Bruno, > But that might be because with 'by, the operation is not destructive.
This is correct. 'sort' is destructive, and 'by' is not, because it builds a fresh, private list. > Is this normal operation of picolisp? I assumed its not, because I didn't > catch any reference to it in the documentation. Every destructive function should be marked as such in the reference. Let us know when you find a case where this is missing. - Alex -- UNSUBSCRIBE: mailto:email@example.com?subject=Unsubscribe