#[no_mangle]pub unsafe extern "C" fn sqlite3_create_window_function(
db: *mut sqlite3,
zFunc: *const c_char,
nArg: c_int,
enc: c_int,
p: *mut c_void,
xStep: Option<unsafe extern "C" fn(_: *mut sqlite3_context, _: c_int, _: *mut *mut sqlite3_value)>,
xFinal: Option<unsafe extern "C" fn(_: *mut sqlite3_context)>,
xValue: Option<unsafe extern "C" fn(_: *mut sqlite3_context)>,
xInverse: Option<unsafe extern "C" fn(_: *mut sqlite3_context, _: c_int, _: *mut *mut sqlite3_value)>,
xDestroy: Option<unsafe extern "C" fn(_: *mut c_void)>
) -> c_int