Re: 'Unknown' and three-valued logic
--- Derek Parnell <ddparnell at bigpond.com> wrote:
> I proposed the need for knowing whether or not a variable has been
> initialized to RDS a long time ago. Also I mentioned the usefulness of
> setting a variable back to its uninitialized state. RDS declined to
> incorporate these into the language. It is obvious that the Euphoria
> interpreter can ALREADY determine if a variable is initialized or not,
> however there is no programmer access to that information.
As an aside, my modified interpreter (check the archives) only returns a
variable id if the variable has been initialized.
Matt Lewis
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