On Jul 8, 2007, at 8:12 , Andrew Coppin wrote:
Brandon S. Allbery KF8NH wrote:
On Jul 8, 2007, at 3:21 , Andrew Coppin wrote:
this.) So as of now, my code uses rank-2 types - despite the fact that I don't actually know what a rank-2 type *is* yet! o_O This is rather troubling...
Bah --- I use monads all the time and still don't have much of a clue about category theory. :) (For that matter, I can drive a car without understanding what's going on under the hood.)
Aye, you drive a car without knowing how it works - but it was put together by some people who *do* know these things. Would you drive a car you built yourself? ;-)
No :) --- but depending on what you're doing, you can use rank-2 types without knowing what's under the hood. In fact, I'd say the fact that you're using them is evidence of that. (Aside --- looking at your problem description, I wonder if GADTs would be a better fit.) -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH