Personally I prefer this formulation (with the same caveat about modifying the global):

sub ChangeArray1
{
    $_ = 1 for @A;
}

[download]

which to me is both clear and concise. All subjective, of course.

And for the benefit of the OP: Go To Statement Considered Harmful.

In reply to Re^2: Changing an array from a sub by hippo
in thread Changing an array from a sub by harangzsolt33

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