Good question. That must be a matter of taste, because as you say the read will always produce the same result. But it sill is a bit of a strange operation.<br><br> -- Lennart<br><br><div class="gmail_quote">On Dec 4, 2007 6:25 AM, Conal Elliott <
<a href="mailto:conal@conal.net">conal@conal.net</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Oh. Simple enough. Thanks.
<br><br>Another question: why the IO in readIVar :: IVar a -> IO a, instead of just readIVar :: IVar a -> a? After all, won't readIVar iv yield the same result (eventually) every time it's called?
<div><div></div><div class="Wj3C7c"><br><br><div class="gmail_quote">On Dec 3, 2007 12:29 AM, Lennart Augustsson <<a href="mailto:lennart@augustsson.net" target="_blank">lennart@augustsson.net</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
You can make them from MVars.<br><br><div class="gmail_quote"><div>On Dec 2, 2007 8:03 PM, Conal Elliott <<a href="mailto:conal@conal.net" target="_blank">conal@conal.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
what became of (assign-once) IVars? afaict, they were in concurrent haskell and now aren't.<br>
<br></div>_______________________________________________<br>Haskell mailing list<br><a href="mailto:Haskell@haskell.org" target="_blank">Haskell@haskell.org</a><br><a href="http://www.haskell.org/mailman/listinfo/haskell" target="_blank">
http://www.haskell.org/mailman/listinfo/haskell
</a><br><br></blockquote></div><br>
</blockquote></div><br>
</div></div><br>_______________________________________________<br>Haskell mailing list<br><a href="mailto:Haskell@haskell.org">Haskell@haskell.org</a><br><a href="http://www.haskell.org/mailman/listinfo/haskell" target="_blank">
http://www.haskell.org/mailman/listinfo/haskell</a><br><br></blockquote></div><br>