pub unsafe extern "C" fn CVodeSetPreconditioner(
cvode_mem: *mut c_void,
pset: CVLsPrecSetupFn,
psolve: CVLsPrecSolveFn,
) -> c_intpub unsafe extern "C" fn CVodeSetPreconditioner(
cvode_mem: *mut c_void,
pset: CVLsPrecSetupFn,
psolve: CVLsPrecSolveFn,
) -> c_int