Function spice_sys::spkezr_c

pub unsafe extern "C" fn spkezr_c(
    targ: *const c_char, 
    et: c_double, 
    reff: *const c_char, 
    abcorr: *const c_char, 
    obs: *const c_char, 
    starg: *mut c_double, 
    lt: *mut c_double
)

returns the state of a target body relative to an observing body.