Full Discussion: confused,,,,
Top Forums UNIX for Dummies Questions & Answers confused,,,, Post 17504 by spyros on Saturday 16th of March 2002 11:54:36 AM
MySQL ,,,,,

Thanks mates both of you for the advice Smilie
Test Your Knowledge in Computers #958
Difficulty: Hard
Metamorphism protects a virus against heuristic analysis.
True or False?

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Aspect::Advice::Around(3pm)				User Contributed Perl Documentation			       Aspect::Advice::Around(3pm)

Aspect::Advice::Around - Execute code both before and after a function SYNOPSIS
use Aspect; around { # Trace all calls to your module print STDERR "Called my function " . $_->sub_name . " "; # Lexically alter a global for this function local $MyModule::MAXSIZE = 1000; # Continue and execute the function $_->run_original; # Suppress exceptions for the call $_->return_value(1) if $_->exception; } call qr/^ MyModule::w+ $/; DESCRIPTION
The "around" advice type is used to execute code on either side of a function, allowing deep and precise control of how the function will be called when none of the other advice types are good enough. Using "around" advice is also critical if you want to lexically alter the environment in which the call will be made (as in the example above where a global variable is temporarily changed). This advice type is also the most computationally expensive to run, so if your problem can be solved with the use of a different advice type, particularly "before", you should use that instead. Please note that unlike the other advice types, your code in "around" is required to trigger the execution of the target function yourself with the "proceed" method. If you do not "proceed" and also do not set either a "return_value" or "exception", the function call will return "undef" in scalar context or the null list "()" in list context. AUTHORS
Adam Kennedy <adamk@cpan.org> COPYRIGHT AND LICENSE
Copyright 2010 Adam Kennedy. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-02-01 Aspect::Advice::Around(3pm)

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