10 Mar
2008
10 Mar
'08
2:55 p.m.
On Mar 10, 2008, at 15:42 , Tobias C. Rittweiler wrote:
+(defun copy-hash-table (table &key copy-fn test size
rehash-size rehash-threshold)- "Returns a copy of hash table TABLE, with the same keys and values
as the TABLE. The copy has the same properties as the original, unless -overridden by the keyword arguments." +overridden by the keyword arguments.
+The values are copied by calling COPY-FN which defaults to CL:IDENTITY; +thus a shallow copy is returned by default."
- (setf copy-fn (or copy-fn 'identity))
I'd really rather see :key there instead of :copy-fn. Reason: it's in line with other CL functions, and it can be used that way, e.g.: (copy-hash-table *table* :key #'accessor)
That there is copying involved is rather secondary.
Also, I find :copy-fn ugly in comparison to :key, but YMMV.
M/