You should not define a function inside a function. It does not behave as you'd expect. Instead, change your scoping slightly: 
{
  my @array;
  sub Merge {
    @array = @_;
    MergeSort(0, $#array);
  }
  sub MergeSort {
    # can see @array here...
  }
}

[download]


$_="goto+F.print+chop;\n=yhpaj";F1:eval

In reply to Re: Scoped Variables in a Recursive Function. by japhy
in thread Scoped Variables in a Recursive Function. by kilinrax

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