Re: Error on package redefinition?

[Mark Mueller <stoffel@cs.tu-berlin.de>]

I have a package definition in my code, and if i loaded my
code again, the package definitions caused error messages:

> (make-package 'test)
#<PACKAGE TEST>
> (make-package 'test)
 
** - Continuable Error
a package with name "TEST" already exists.
If you continue (by typing 'continue'): You can input another name.

In my case i solved the problem by asking if a package
exists with (find-package ...) before i defined it new:

(if (not (find-package 'control))
    (MAKE-PACKAGE 'control))


Mark


-- 
Mark Müller * Institut für Angewandte Informatik * FG Methoden der KI 
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