I'm trying to wrap the GET_SEQ_ELEM macro below can some one give me clues or example how i would go about this easily
with a cffi function like defcfun...If there is no clear way i definately propose an addendum to cffi for wrapping macros
#define CV_SEQ_ELEM( seq, elem_type, index ) \ /* assert gives some guarantee that <seq> parameter is valid */ \ ( assert(sizeof((seq)->first[0]) == sizeof(CvSeqBlock) && \ (seq)->elem_size == sizeof(elem_type)), \ (elem_type*)((seq)->first && (unsigned)index < \ (unsigned)((seq)->first->count) ? \ (seq)->first->data + (index) * sizeof(elem_type) : \ cvGetSeqElem( (CvSeq*)(seq), (index) ))) #define CV_GET_SEQ_ELEM( elem_type, seq, index ) CV_SEQ_ELEM( (seq), elem_type, (index) )