PK_FIN_ask_previous_in_loop

PK_ERROR_code_t PK_FIN_ask_previous_in_loop
(
--- received arguments ---
PK_FIN_t        fin,               --- a fin

--- returned arguments ---
PK_FIN_t *const previous           --- the previous fin around the loop
)


This function returns the previous fin in order around the given fin's loop.


This function could be used in conjunction with PK_LOOP_ask_first_fin to
scan the fins in a loop, one at a time, in the opposite order as returned
by PK_LOOP_ask_fins. The ordering is cyclic.