[Haskell-cafe] debugtracehelpers Re: traceM and traceShowM
tphyahoo at gmail.com
Mon Oct 19 16:51:30 EDT 2009
I have this and a couple other handy functions in
2009/10/16 Martijn van Steenbergen <martijn at van.steenbergen.nl>:
> I propose the addition of the following two functions to module Debug.Trace:
>> traceM :: Monad m => String -> m ()
>> traceM msg = trace msg (return ())
>> traceShowM :: (Show a, Monad m) => a -> m ()
>> traceShowM = traceM . show
> These functions allow tracing in any do-block. I often define them myself; I
> think they are useful in general.
> Deadline: 23 October 2009.
> Libraries mailing list
> Libraries at haskell.org
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