I'm not exactly sure what you are looking for, but I use this to find my loaded subroutines:
(defun rjp-subroutines (/ lst)
(mapcar
'(lambda (x)
(if (wcmatch (strcase x) (strcase "rjp-*"))
(setq lst (cons (strcase x T) lst))
)
)
(atoms-family 1)
)
(acad_strlsort lst)
)
All you have to do is change the filter to find what you are looking for...possibly C:*
Ron