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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You can do:<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>import System<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>import clr<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>clr.Reference[System.Array[int]]( System.Array[int]( (1,2,3) ) )<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This breaks down into the array creation:<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>System.Array[int]( (1,2,3) )<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>And then passing that to the new instance of clr.Reference.&nbsp; <o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>From:</span></b><span
style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>
users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com] <b>On
Behalf Of </b>Frank Kampas<br>
<b>Sent:</b> Friday, August 25, 2006 1:43 PM<br>
<b>To:</b> Discussion of IronPython<br>
<b>Subject:</b> Re: [IronPython] c# function that passes arguments by reference<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>how to I create an array to pass by reference?&nbsp; I assume that
your example is creating an integer with a value of 3 to pass by reference.<o:p></o:p></span></p>

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margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>----- Original Message ----- <o:p></o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <a href="mailto:dinov@exchange.microsoft.com"
title="mailto:dinov@exchange.microsoft.com">Dino Viehland</a> <o:p></o:p></span></p>

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<div>

<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>To:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <a href="mailto:users@lists.ironpython.com"
title="mailto:users@lists.ironpython.com">Discussion of IronPython</a> <o:p></o:p></span></p>

</div>

<div>

<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Sent:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> Friday, August 25, 2006 4:06 PM<o:p></o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Subject:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> Re: [IronPython] c# function that passes arguments by reference<o:p></o:p></span></p>

</div>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This is the &#8220;easy&#8221; way to call functions that are passing values
by reference.&nbsp; You should be able to pass non-zero values as well as
non-empty arrays.&nbsp; The only thing that should disallow this is if there
were multiple overloads that resulted in an ambiguous method resolution.&nbsp; </span><span
style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For these cases there is a generic Reference type defined in the
CLR module.&nbsp; You can use this:</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>import clr</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>x = clr.Reference[int](3)</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>someObj.someFunction(x)</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>print x.Value</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>and Value will be updated after the call.</span><span
style='color:black'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span style='color:black'><o:p></o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";
color:black'>From:</span></b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";
color:black'> users-bounces@lists.ironpython.com
[mailto:users-bounces@lists.ironpython.com] <b>On Behalf Of </b>Frank Kampas<br>
<b>Sent:</b> Friday, August 25, 2006 12:58 PM<br>
<b>To:</b> users@lists.ironpython.com<br>
<b>Subject:</b> [IronPython] c# function that passes arguments by reference</span><span
style='color:black'><o:p></o:p></span></p>

</div>

</div>

<p class=MsoNormal><span style='color:black'>&nbsp;<o:p></o:p></span></p>

<div>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>If I import a c# function that passes its arguments (integers and
arrays)</span><span style='color:black'><o:p></o:p></span></p>

</div>

<div>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>by reference, the only way I can get it to work is pass zeroes for
the integers and</span><span style='color:black'><o:p></o:p></span></p>

</div>

<div>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>arrays of zero for the arrays.&nbsp; The&nbsp;results for the
variables passed by&nbsp;reference return with the function</span><span
style='color:black'><o:p></o:p></span></p>

</div>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>return.&nbsp; Is that what is supposed to occur?&nbsp; </span><span
style='color:black'><o:p></o:p></span></p>

</div>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:black'>_______________________________________________<br>
users mailing list<br>
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<a href="http://lists.ironpython.com/listinfo.cgi/users-ironpython.com">http://lists.ironpython.com/listinfo.cgi/users-ironpython.com</a><o:p></o:p></span></p>

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