
1 Jul
2009
1 Jul
'09
midnight
G'day all. On Tue, Jun 30, 2009 at 08:02:48PM -0400, Daniel Peebles wrote:
But we don't want to imply it's commutative either. Having something "bidirectional" like <> or <+> feels more commutative than associative to me.
Quoting John Meacham
Not really, think of '++', which doesn't commute but is visually symmetric, or Data.Sequence.<>, or the common use of <> to mean concatination in pretty printers.
Other good examples are && and ||. Cheers, Andrew Bromage