You can make a sub accept an array and you can act on it without knowing the 'name' of the array you are receiving. This is done with references: 
sub DoSomethingToArray (\@)
{
      my ($array) = @_;

      for ($br = 0; $br <= $#{$array}; $br++)
      {
            # Do stuff with @$array using references
      }
}

# Call it simply as:
DoSomethingToArray(@config::a);
DoSomethingToArray(@config::b);
DoSomethingToArray(@config::c);

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Note that this function has a prototype which tells Perl that you don't want the array (@), but a reference to it. Without this prototype, the contents of the array are passed to the function, which is of less use.

Update: Changed '<' comparison to '<=' in the for loop as per ton's correction below.

In reply to Re: Pass on name of array by tadman
in thread Pass on name of array by Anonymous Monk

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