zl:1 - FTP

undefine-global-handler 600
sage. If such a method exists, it is invoked with arguments operation and
any arguments that were given to the operation.
This is equivalent to using the :default-handler option to defflavor.
flavor:vanilla does not provide a method for :unclaimed-message. If no
method for :unclaimed-message exists, and the :default-handler option
was not used, then the default action of the Flavors system is to signal an
error.
undefine-global-handler name Macro
Removes a global handler defined with define-global-handler.
name is the name of the global handler to be removed.
undefine-global-handler returns t if it finds the named handler. Otherwise
it signals a proceedable error, and, if the condition proceeds, returns
nil.
Examples:
(define-global-handler infinity-is-three sys:divide-by-zero
(error)
(values :return-values '(3)))
(undefine-global-handler infinity-is-three)
For a table of related items: See the section "Basic Forms for Global
Handlers" in Symbolics Common Lisp: Language Concepts.
undefun function-spec Function
If function-spec has a saved previous basic definition, this interchanges the
current and previous basic definitions, leaving the encapsulations alone.
This undoes the effect of a defun, compile, and so on. (See the function
uncompile in Program Development Utilities.)
I
si:unencapsulate-function-spec function-spec &optional Function
encapsulation-types
This takes one function spec and returns another. If the original function
spec is undefined, or has only a basic definition (that is, its definition is
not an encapsulation), then the original function spec is returned unchanged.
If the definition of function-spec is an encapsulation, then its debugging
info is examined to imd the uninterned symbol that holds the encapsulated
de imition, and also the encapsulation type. If the encapsulation is of a
type that is to be skipped over, the uninterned symbol replaces the original
function spec and the process repeats.