Re^4: Simple Pass By Reference

I kind of wanted to use a local alias for $_[0], rather than have to use a reference that I have to remember to dereference everywhere.

I guess I just want to say:

    alias $var_in_sub = $_[0];
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Just to give $_[0] a meaningful name in the context of the subrountine, such that $var_in_sub and $_[0] are the same thing. In the same way as $var_elsewhere and $_[0] are the same thing when calling alter_var($var_elsewhere).

I guess this can't be done in Perl, without using references and dereferencing - which is fine. No big deal.

-Andrew.

Andrew Tomazos | andrew@tomazos.com | www.tomazos.com

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Re^5: Simple Pass By Reference
by sk (Curate) on Jul 26, 2005 at 00:57 UTC

sub alter_var {
    my $aliasvar = $_[0];    # Nice to have C like proto types but...
    ${$aliasvar} =~ s/a/b/g;
#   ${$_[0]} =~ s/a/b/g;   # This uses $_[0] and works
}
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Re^5: Simple Pass By Reference
by PodMaster (Abbot) on Jul 26, 2005 at 00:52 UTC

I guess this can't be done in Perl, without using references and dereferencing - which is fine. No big deal.

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.

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Re^6: Simple Pass By Reference

by tomazos (Deacon) on Jul 26, 2005 at 01:20 UTC

Lexical::Alias

I'm running 5.6.1, looks like 5.8.1+ is needed from the docs.

Oh well. No biggie.

-Andrew.

Andrew Tomazos | andrew@tomazos.com | www.tomazos.com

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