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*applyhook*

*applyhook*

type: system variable 
location: built-in
source file: xlglob.c  (not implemented)
Common LISP compatible: similar
supported on: all machines

SYNTAX

*applyhook*

DESCRIPTION

*APPLYHOOK* is a system variable that exists and is initialized to NIL. It is a hook that is intended to contain a user function that is to be called whenever a function is applied to a list of arguments. It is not, however, implemented in XLISP 2.0 - it only exists as a dummy hook.

EXAMPLES

        *applyhook*                             ; returns NIL

COMMON LISP COMPATIBILITY: *APPLYHOOK* is defined in Common LISP and is often used to implement function stepping functionality in a debugger.


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