pub type zipsc_vft = Option<unsafe extern "C" fn(zeta_r: *const c_void, zeta_i: *const c_void, chi: *mut c_void)>;
pub enum zipsc_vft { None, Some(unsafe extern "C" fn(*const c_void, *const c_void, *mut c_void)), }
No value.
Some value of type T.
T