pub unsafe extern "C" fn coap_pdu_parse(
proto: coap_proto_t,
data: *const u8,
length: usize,
pdu: *mut coap_pdu_t,
) -> c_int
pub unsafe extern "C" fn coap_pdu_parse(
proto: coap_proto_t,
data: *const u8,
length: usize,
pdu: *mut coap_pdu_t,
) -> c_int