c-down-list-backward

c-down-list-backward is a Lisp macro in `cc-defs.el'.

(c-down-list-backward &optional POS LIMIT)

Return the last position inside the last list sexp before POS,
or nil if no such position exists. The point is used if POS is left out.

A limit for the search may be given. The start position is assumed to
be after it.