in reply to Dereferencing code refs with & vs. ->()

To address the actual question, the advantage of using $ref -> () instead of &$ref() is that the former obeys the strict references pragma and the latter will generate an error when using strict references.
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Re^2: Dereferencing code refs with & vs. ->()
by Moron (Curate) on Sep 23, 2005 at 09:11 UTC
    (oops forgot to log in when posting the above)

    Update: Actually it is more complicated than that - I should have inserted a qualifying clause rather than implying this is true for all cases, but alas I did not post it under this account and can't update it anymore.

    -M

    Free your mind

[reply]
Re^2: Dereferencing code refs with & vs. ->()
by Anonymous Monk on Sep 23, 2005 at 09:44 UTC
    Bullshit. 
    #!/usr/bin/perl

use strict;
use warnings;

my $ref = sub {print "Hello, world\n"};

$ref->();
&$ref();  # Look ma, I am using strict!

__END__
Hello, world
Hello, world

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    But: 
    #!/usr/bin/perl

use strict;
use warnings;

sub hello {print "Hello, world\n"};

my $ref = "hello";

$ref->();

__END__
Can't use string ("hello") as a subroutine ref while "strict refs" in 
+use

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[d/l]
[select]

      Maybe you could have said something more civil than "bullshit"? Politeness is free, and the payback is large, try it, you might like it.

      ---
      $world=~s/war/peace/g

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