26 Mar
2009
26 Mar
'09
2:27 a.m.
or via Arrow: swap = snd &&& fst On Wed, Mar 25, 2009 at 9:16 AM, David Menendez <dave@zednenem.com> wrote:
On Wed, Mar 25, 2009 at 11:32 AM, Simon Marlow <marlowsd@gmail.com> wrote:
Jonathan Cast wrote:
Define
swap (a, b) = (b, a)
ew, that's far too crude. I think you mean
swap = uncurry $ flip (,)
On the theme of using monads where you might not expect,
swap = liftA2 (,) snd fst
-- Dave Menendez <dave@zednenem.com> <http://www.eyrie.org/~zednenem/ <http://www.eyrie.org/%7Ezednenem/>> _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe