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Re^2: Passing variables into a subroutine

by Freezer (Sexton)
on Sep 04, 2012 at 10:26 UTC ( #991588=note: print w/ replies, xml ) Need Help??


in reply to Re: Passing variables into a subroutine
in thread Passing variables into a subroutine

Perl actually takes a reference to the array and passes that as the first argument to your sub. So don't you forget to de-reference it in your sub!



Is there a popper way to do the dereferencing, given the context?


Comment on Re^2: Passing variables into a subroutine
Re^3: Passing variables into a subroutine
by CountZero (Bishop) on Sep 04, 2012 at 16:24 UTC
    Sadly, there will be no automatic dereferencing done by Perl. But it is very easy to do: to get the original array, just add the @ sigil to the front of the scalar holding the reference.

    CountZero

    A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

    My blog: Imperial Deltronics

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