pub unsafe extern "C" fn jerasure_bitmatrix_dotprod(
k: c_int,
w: c_int,
bitmatrix_row: *mut c_int,
src_ids: *mut c_int,
dest_id: c_int,
data_ptrs: *mut *mut c_char,
coding_ptrs: *mut *mut c_char,
size: c_int,
packetsize: c_int,
)