15 Mar
2009
15 Mar
'09
9:33 a.m.
ouch, I was confusing the mtl and transformers package... so basically transformers is a better replacement for mtl? or does mtl offer things transformers does not? On Sun, Mar 15, 2009 at 12:04 AM, Henning Thielemann < lemming@henning-thielemann.de> wrote:
On Sat, 14 Mar 2009, Peter Verswyvelen wrote:
I was using the transformers but still had to implement the Applicative
instance of State This package contains an applicative instance for StateT but not for State
In 'transformers' State is a type synonym for StateT Identity and thus does not need an own instance declaration.