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Special Forums News, Links, Events and Announcements eBay Unix systems Post 19468 by JeZzTeR on Thursday 11th of April 2002 02:40:51 PM
Old 04-11-2002
Thats cool, I'll check it out . Damn you got a deal on that!!
 
Test Your Knowledge in Computers #83
Difficulty: Easy
BSD, Linux, Mac OS X, and other Unix-like operating systems did not inherit aspects of the original Unix design.
True or False?

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Damn(3pm)						User Contributed Perl Documentation						 Damn(3pm)

NAME
Acme::Damn - 'Unbless' Perl objects. SYNOPSIS
use Acme::Damn; my $ref = ... some reference ... my $obj = bless $ref , 'Some::Class'; ... do something with your object ... $ref = damn $obj; # recover the original reference (unblessed) ... neither $ref nor $obj are Some::Class objects ... DESCRIPTION
Acme::Damn provides a single routine, damn(), which takes a blessed reference (a Perl object), and unblesses it, to return the original reference. EXPORT By default, Acme::Damn exports the method damn() into the current namespace. Aliases for damn() (see below) may be imported upon request. Methods damn object damn() accepts a single blessed reference as its argument, and returns that reference unblessed. If object is not a blessed reference, then damn() will "die" with an error. bless reference bless reference [ , package ] bless reference [ , undef ] Optionally, Acme::Damn will modify the behaviour of "bless" to allow the passing of an explicit "undef" as the target package to invoke damn(): use Acme::Damn qw( bless ); my $obj = ... some blessed reference ...; # the following statements are equivalent my $ref = bless $obj , undef; my $ref = damn $obj; NOTE: The modification of "bless" is lexically scoped to the current package, and is not global. Method Aliases Not everyone likes to damn the same way or in the same language, so Acme::Damn offers the ability to specify any alias on import, provided that alias is a valid Perl subroutine name (i.e. all characters match "w"). use Acme::Damn qw( unbless ); use Acme::Damn qw( foo ); use Acme::Damn qw( unblessthyself ); use Acme::Damn qw( recant ); Version 0.02 supported a defined list of aliases, and this has been replaced in v0.03 by the ability to import any alias for "damn()". WARNING
Just as "bless" doesn't call an object's initialisation code, "damn" doesn't invoke an object's "DESTROY" method. For objects that need to be "DESTROY"ed, either don't "damn" them, or call "DESTROY" before judgement is passed. ACKNOWLEDGEMENTS
Thanks to Claes Jacobsson <claes@surfar.nu> for suggesting the use of aliases, and Bo Lindbergh <blgl@cpan.org> for the suggested modification of "bless". SEE ALSO
bless, perlboot, perltoot, perltooc, perlbot, perlobj. AUTHOR
Ian Brayshaw, <ian@onemore.org> COPYRIGHT AND LICENSE
Copyright 2003-2012 Ian Brayshaw This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-02-14 Damn(3pm)

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