Am Freitag, 1. Dezember 2006 21:37 schrieb Krasimir Angelov:
> [...]
> do allocConsole
> .....
> .....
> putStrLn "Hello, world!"
> .....
> .....
> freeConsole
> [...]
Having explicit alloc/free pairs can lead to resource leaks in the presence of
exceptions. Simple solution: Merge both parts into a single function, using
"bracket" or friends internally:
withConsole $ do
...
putStrLn "I'm exception safe! :-)"
...
Cheers,
S.
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