I'd really like to see MAP take a sequence as its first
argument, and have the results be put into that sequence.
     The first N elements of the sequence would be modified
where N is the min of the lengths of the argument sequences,
(including the sequence passed as the first arg).
     This seems upward-compatible and easy to implement, and
would be extremely handy.
     Any comments?
Bob Sasseen
veracsd.rs