Copy appears to be most reliable as it does not modify the original list. Maybe a tiny bit slower than ->(setq L (sort L))
: (setq L (3 2 1 4 9 0] -> (3 2 1 4 9 0) : (sort (copy L] -> (0 1 2 3 4 9) : L -> (3 2 1 4 9 0) : (setq L (sort L] -> (0 1 2 3 4 9) : L-> (0 1 2 3 4 9) JmageK -- Securely sent with Tutanota May 4, 2019, 8:10 PM by a...@software-lab.de: > Hi Kashyap, > >> I noticed an odd behavior of sort - >> (setq L '((2) (1) )) >> (sort L) >> > > Note that 'sort' is a destructive function, it modifies the order of cells > in-place. Thus you must use the return value of 'sort', it may return another > cell than was passed to it. > > In the above, the return value of 'sort' is ignored and thus lost. > > Try either > > : (length (sory L)) > > or > > : (setq L (sort L)) > > ☺/ A!ex > > -- > UNSUBSCRIBE: mailto:> picolisp@software-lab.de > <mailto:picolisp@software-lab.de>> ?subject=Unsubscribe > -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
