Ah,
Given an expression that specifies the name of a subroutine, returns true if the specified subroutine has ever been declared, even if it is undefined.
OK, so exists tells me if its ever used anywhere and thus in the symbol table (even if never defined), and defined tells me if it was actually present.

--John

In reply to Re: Re: How to tell if a function exists? by John M. Dlugosz
in thread How to tell if a function exists? by John M. Dlugosz

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