Creating a reference to a scalar

phyther has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: new to perl by jeroenes (Priest) on May 02, 2001 at 11:07 UTC
It looks like you just began your journey into the wonders of perl. May I wish you much joy and enlightment on your path? Read about references in perlreftut and perlref. Use that search box in the upper left corner and Super Search at will. Just to make a reference: `$foo = 1; $fooref = \$foo; #a reference to $foo $foovalue = $$fooref; #de-reference $fooref` [download] That's how it works with scalars. With arrays: `@bar=0..10; $barref = \@bar; @barvalue = @$barref;` [download] You see? Use the backslash for making the reference, and precede the reference-scalar with a $,@ or % (hash) to get the values. Hope this helps, Jeroen "We are not alone"(FZ) Update: Unfortunately, perlreftut cannot be found on this site, it is probably only found in the 5.6 distro. Thx 2 stephen for pointing that out. New link to the pages of Dominus.	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re: new to perl
by jeroenes (Priest) on May 02, 2001 at 11:07 UTC

Read about references in perlreftut and perlref. Use that search box in the upper left corner and Super Search at will.

Just to make a reference:

$foo = 1;    
$fooref = \$foo;      #a reference to $foo
$foovalue = $$fooref; #de-reference $fooref
[download]

@bar=0..10;
$barref = \@bar;
@barvalue = @$barref;
[download]

Hope this helps,

Jeroen
"We are not alone"(FZ)
Update: Unfortunately, perlreftut cannot be found on this site, it is probably only found in the 5.6 distro. Thx 2 stephen for pointing that out. New link to the pages of Dominus.

[reply]
[d/l]
[select]