15 Jan
2008
15 Jan
'08
12:33 a.m.
On Jan 15, 2008, at 0:28 , Adam Smyczek wrote:
It's probably a trivial question, but I cannot figure out how to implement the catchError function in:
instance MonadError String Shell where throwError = error . ("Shell failed: "++) catchError l h = ???
Take a look at Control.Exception.catch for starters. -- 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