On Aug 8, 2006, at 5:36 PM, Albert Lai wrote:

"Brian Hulley" <[EMAIL PROTECTED]> writes:

Also, the bottom line imho is that Haskell is a difficult language to
understand, and this is compounded by the apparent cleverness of
unreadable code like:

     c = (.) . (.)

when a normal person would just write:

     c f g a b = f (g a b)

All mainstream languages are also difficult to understand, with
similarly clever, unreadable code.  Let's have a fun quiz!  Guess the
mainstream languages in question:

[snip]

2. What language allows you to test primality in constant runtime?
   That is, move all the work to compile time, using its polymorphism.

GHC-Haskell (with enough extensions enabled)? We're most of the way there already with type arithmetic. I bet putting together a nieve primality test would be pretty doable. In fact, I suspect that GHC's type-checker is turing-complete with MPTCs, fundeps, and undecidable instances. I've been contemplating the possibility of embedding the lambda calculus for some time (anybody done this already?)

Oops. I see now the qualifier "mainstream". The point still stands, however.


Rob Dockins

Speak softly and drive a Sherman tank.
Laugh hard; it's a long way to the bank.
          -- TMBG



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