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<DIV dir=ltr align=left>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><SPAN
class=843571518-27052008><FONT face=Tahoma size=2>Hi,</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><SPAN
class=843571518-27052008><FONT face=Tahoma size=2>The next works too:<BR>push
@$a1ref, ["Seattle", "Olympia", "Tacoma"];<BR>print $a1ref->[0][0] .
"\n";</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><SPAN
class=843571518-27052008><FONT face=Tahoma size=2>But $alref->[0] is array
and you can not push a scalar (e.g. "Washington") there.<BR>I think the next
structure fits better to your goal:</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><SPAN
class=843571518-27052008><FONT face=Tahoma size=2>push
@{$a1ref->{Washington}}, ("Seattle", "Olympia", "Tacoma");<BR>print
$a1ref->{Washington}[0] . "\n";</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><SPAN
class=843571518-27052008><FONT face=Tahoma size=2>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><BR>--
Sergey</DIV>
<DIV></FONT><FONT face=Tahoma size=2></FONT></SPAN> </DIV>
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<HR tabIndex=-1>
</DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma
size=2><B>From:</B> sanfrancisco-pm-bounces+sergey.fetisov=ask.com@pm.org
[mailto:sanfrancisco-pm-bounces+sergey.fetisov=ask.com@pm.org] <B>On Behalf Of
</B>Dan Boger<BR><B>Sent:</B> Tuesday, May 27, 2008 10:11 AM<BR><B>To:</B> San
Francisco Perl Mongers User Group<BR><B>Subject:</B> Re: [sf-perl] Pushing and
Popping an array on the heap<BR></FONT><BR></DIV>
<DIV></DIV><BR>
<DIV class=gmail_quote>On Tue, May 27, 2008 at 9:52 AM, Neil Heller <<A
href="blocked::mailto:nheller@silcon.com">nheller@silcon.com</A>> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV lang=EN-US link="blue" vlink="purple">
<DIV>
<P>The problem is that I don't have a clue (nor am I able to find) how to use
(or the syntax involved to) "push" (or unshift) and "pop" (or shift) values
into and out of this described data
structure.</P></DIV></DIV></BLOCKQUOTE></DIV>I think (but can't be sure since
you didn't post what you tried) that you're running into a precedence
issue. If you type:<BR><BR> push $a1ref[0]->[0],
"value";<BR><BR>Push will complain since it wants an array as it's first
argument, not an array reference. The way to get around it is to
dereference the array:<BR><BR> push @{$a1ref[0]->[0]},
"value";<BR><BR>Same will work for any of the array manipulation commands
(shift, pop, unshift, splice, etc).<BR><BR>HTH!<BR><BR>Dan<BR><BR>-- <BR>Dan
Boger </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B>
sanfrancisco-pm-bounces+sergey.fetisov=ask.com@pm.org
[mailto:sanfrancisco-pm-bounces+sergey.fetisov=ask.com@pm.org] <B>On Behalf Of
</B>Neil Heller<BR><B>Sent:</B> Tuesday, May 27, 2008 9:53 AM<BR><B>To:</B> 'San
Francisco Perl Mongers User Group'<BR><B>Subject:</B> [sf-perl] Pushing and
Popping an array on the heap<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal>Some of the advantages of using an array are the push and pop
functions.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>The following instantiates a reference on the stack that
points to an (anonymous) empty array on the heap:<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>What I would like to do is:<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoListParagraph
style="MARGIN-LEFT: 38.25pt; TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1"><![if !supportLists]><SPAN
style="mso-list: Ignore">1.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]>Instantiate a reference on the stack that points to an
empty, anonymous array on the heap.<o:p></o:p></P>
<P class=MsoListParagraph
style="MARGIN-LEFT: 38.25pt; TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1"><![if !supportLists]><SPAN
style="mso-list: Ignore">2.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]>“push” a reference ($a2ref) into the original anonymous
array that points to a secondary, anonymous array<o:p></o:p></P>
<P class=MsoListParagraph
style="MARGIN-LEFT: 38.25pt; TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1"><![if !supportLists]><SPAN
style="mso-list: Ignore">3.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]>“push” a series of references into the array referenced
by $a2ref<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>An example might look something like the
following:<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Courier New'">$a1ref =
[undef];<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Courier New'">(The values to be
pushed are as follows);<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Washington
$a1ref->[0]<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Seattle
$a1ref[0]->[0]<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Olympia
$a1ref[0]->[1]<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Tacoma
$a1ref[0]->[2]<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Oregon
$a1ref->[1]<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Portland<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Salem<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Beaverton <o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Finally, I would like to pop (or shift) values from $a1ref
followed by the individual members of the secondary array (such as
$a1ref[0]->[0]).<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>The problem is that I don’t have a clue (nor am I able to
find) how to use (or the syntax involved to) “push” (or unshift) and “pop” (or
shift) values into and out of this described data structure.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>I appreciate any help I can get.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Neil Heller<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV></BODY></HTML>