pub unsafe extern "C" fn ckw01_c( handle: i32, begtime: f64, endtime: f64, inst: i32, ref_: *mut i8, avflag: i32, segid: *mut i8, nrec: i32, sclkdp: *mut f64, quats: *mut [f64; 4], avvs: *mut [f64; 3] )