I think that you have done exactly what should've been done in that situation and written the smallest amount of code that you needed to write to solve the job within the requirements (additional developer requirements aside *grins*).

Are you considering uploading this? If you are, I would suggest renaming it to Tie::Scalar::[Something Useful Here] so that it follows the standard naming convention(s).

++!

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.