Function fitsio_sys::ffppn

pub unsafe extern "C" fn ffppn(
    fptr: *mut fitsfile, 
    datatype: c_int, 
    firstelem: LONGLONG, 
    nelem: LONGLONG, 
    array: *mut c_void, 
    nulval: *mut c_void, 
    status: *mut c_int
) -> c_int