[Haskell] Re: Haskell Digest, Vol 52, Issue 1
nikhil at bluespec.com
Tue Dec 4 07:17:49 EST 2007
Simon Peyton-Jones said:
> But since the read may block, it matters *when* you perform it.
> For example if you print "Hello" and then read the IVar, you'll
> block after printing; but if you read the IVar and then print, the
> print won't come out. If the operation was pure (no IO) then you'd
> have a lot less control over when it happened.
But this is true of any expression in a non-strict language.
Why the special treatment of IVars?
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