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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The Armstrong book says<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>A ! B ! C ! msg<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>is convenient when one message must go
several places. It seems simple enough to add a line with void or ok to your
function if that is what you want.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>/s/ Bill<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
erlang-questions-bounces@erlang.org
[mailto:erlang-questions-bounces@erlang.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Robert Virding<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, October 22, 2008
10:26 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Kostis Sagonas<br>
<b><span style='font-weight:bold'>Cc:</span></b> erlang-questions@erlang.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [erlang-questions]
clarify: Sending big messages</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2008/10/22 Kostis Sagonas <<a href="mailto:kostis@cs.ntua.gr">kostis@cs.ntua.gr</a>><o:p></o:p></span></font></p>
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<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0pt 0pt 0pt 6.0pt;
margin-left:4.8pt;margin-right:0pt'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Zoltan Peter Toth wrote:<br>
> Hi,<br>
><br>
> We have a function like this:<br>
><br>
> deliver(Port, Data) -><br>
> Port ! {data, Data}.<br>
><br>
> This function returns Data.<br>
<br>
Nope. This function returns {data, Data}.<br>
<br>
I personally think that !/2 returning a value instead of being void as<br>
it should, is a design flow in the definition of the language. (*)<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
Trouble is there is no void data type and every expression must return a value.
So we decided that as it must return something it might as well return
something useful, so why not the message? Personally I think this is better
than returning 'ok' or 'void'.<br>
<br>
How would you handle a void return anyway? Can you put in a tuple and send it?
Or just return it and never use it, except to return it again as in the deliver
example.<br>
<br>
Robert<o:p></o:p></span></font></p>
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