Histogram-building code (was: Re: Yet another weakly defined bug report)

[Simon Marlow]

> One question though, about hFlush.  I print out the status by
> repeatedly putStr'ing "blah blah \r".  With NoBuffering set, it works,
> but when following the putStr with 'hFlush stdout', it doesn't (only
> outputs very sporadically.  I guess I'm misunderstanding the function
> of hFlush, anybody care to elaborate?)

It could be a bug.  Can you provide us with a cut-down example?

Cheers,
	Simon