(+1) to that request - what is the "best practices" for portable exception
handling code that straddles version 6.10, i.e. that compiles with compilers
at either side with minimal fuss? I can imagine a couple of
alternatives, but
would like to hear what others are doing here.
thanks
--sigbjorn "likes backward code compatibility"
On 11/1/2008 18:15, Jason Dagit wrote:
On Wed, Oct 8, 2008 at 1:19 AM, Simon Marlow <[EMAIL PROTECTED]> wrote:
Johannes Waldmann wrote:
with 6.10, the following does not typecheck:
foo `Control.Exception.catch` \ _ -> return bar
Ambiguous type variable `e' in the constraint:
`Control.Exception.Exception e'
It is probably bad programming style anyway but what is the workaround?
As long as you're aware that it is bad programming style. We deliberately
didn't include an easy way to do this, because we want people to think about
why they need to catch *all* exceptions (most of the time it's a bug).
Since the above is bad form, what should I be doing? Could someone
please provide some examples or point me at the list of exceptions
that I can catch? What about catching multiple types of exceptions?
Thanks,
Jason
_______________________________________________
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
_______________________________________________
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
