Function pgrx_pg_sys::extract_variadic_args

pub unsafe fn extract_variadic_args(
    arg_fcinfo: FunctionCallInfo,
    arg_variadic_start: c_int,
    arg_convert_unknown: bool,
    arg_values: *mut *mut Datum,
    arg_types: *mut *mut Oid,
    arg_nulls: *mut *mut bool
) -> c_int