Re: Is there a way to see if a value is declared as a constant

[Emmanuel Briot <briot.emmanuel@gmail.com>]

> items are different. Not using an array means that the readability of 
> the of the package will be better.

It won't, really. If you follow Bjorn's suggestion of using an enumeration type (user visible)
and an array (in the body of your package, to get the associated constant), you have a very
readable package, where users can only use one of your enumeration literals.

With the approach you are trying to put in place, users could define their own constants that
doesn't match the ones you provide. They would still be "constant", so even if it was possible
to write a test like you were looking for, that test would pass.