Re: [Haskell-cafe] Newbie vs. laziness

Hallo, On 3/20/07, Jules Bean wrote:

What $! does is force its arguments into WHNF before applying the function. WHNF means, roughly, either a lambda or a constructor at the top-level.

I think I got it now.

However that's a bit clumsy. What kind of error are you seeing when you say 'it crashes'?

I must fetch all rows of the result, otherwise the database will be in an inconsistent state and all subsequent queries crash the application. Fetching all rows automatically finishes the previous statement, so I must evaluate the spine of the list. Cheers, -- -alex http://www.ventonegro.org/