containing-system

Arguments: object

object may be a module, module-group or system. Returns the root system object which contains the object. Note that this may be different from the parent-object of the object, since parent-object returns the object directly containing the object, but containing-system searches up the tree of parent-objects until it finds one with no parent object.

See defsystem.htm for general information on the Defsystem facility in Allegro CL.

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Created 2012.5.30.