)symbols

[Ajay Askoolum]

Has anyone ever encountered an instance where )symb returns a negative number for the IS value?

[Davin Church]

Nope, but I haven't used )SYMB for decades. Perhaps your WS is damaged?  What does ⎕IT 'AuditRefcountsS' return (it should be all zeros)?

[Ajay Askoolum]

Recently,  I've been getting the Definition failed at line 0 message when editing new functions is an active workspace i.e. one with content. When I copied the editor session in a new instance of APL+Win, Ctrl+E would fix the function without complaint.

It was purely by coincidence that I queried )symb in the workspace where the error occurred and found the negative value for IS,  Fearing that I would lose that workspace, (that I had a workspace on the verge of being corrupted) I copied its contents to another to save it and dropped the original. I should have kept it  but alas I did not. This is the workspace that I  am trying to build recursive functions.

I had a workspace that I could neither load nor copy about 2 years ago - updating the backup copy was a real ordeal.

[Davin Church]

Yeah, I regularly check my workspaces for a common kind of memory corruption with ⎕IT. I also use my (freely-available) ARM system to keep all my code archived and managed. That way I can easily recover everything if it's lost and can back-track through all my versions of code to find out where I broke something, among many other advantages.