#alt1 intrude import core::text::ropes
#alt2 intrude import core::text::ropes
-var ons = new NativeString(9)
+var ons = new CString(9)
var base_str = "%Dégâštr"
var str: String = base_str
var copy_len = (str.byte_length - 4).min(9)
str.copy_to_native(ons, copy_len, 4, 0)
-print ons.to_s_with_length(copy_len)
+print ons.to_s_unsafe(copy_len, copy=false)