in reply to RFC: Idiom for named read-write arguments (aliases) instead of using $_[0] etc

Essentially the same trick was employed nine years ago by Juerd for his Non-destructive array processing.

And I reused it 9 months later in Re: Re: reference to an array slice?.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

RIP Neil Armstrong
  • Comment on Re: RFC: Idiom for named read-write arguments (aliases) instead of using $_[0] etc

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Re^2: RFC: Idiom for named read-write arguments (aliases) instead of using $_[0] etc
by LanX (Saint) on Sep 01, 2012 at 22:13 UTC
    well using parts of it doesn't make it an idiom or pattern.

    can't see any \( ) in juerd's code and the other examples look like obfuscation contest for me not like an advice for an idiom.

    Cheers Rolf

[reply]
[d/l]

      Looking again, I see you are right. Whilst related, they are not the same usage.

      By way of penance:

      sub swap{ 
    our($a,$b); 
    local( *a, *b ) = \( @_ ); 
    ($a, $b ) = ( $b, $a ) 
}

my( $x, $y ) = ( 1, 'fred' ); 
swap( $x, $y ); 
print "$x, $y";;
fred, 1

print swap( 1, 'fred' );;
fred 1

      [download]
      With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority".
      In the absence of evidence, opinion is indistinguishable from prejudice.

      RIP Neil Armstrong
[reply]
[d/l]
        good point, since $a and $b are magical globals you can even avoid the our-decalaration (in this case)

        Cheers Rolf

[reply]

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