# Return a new C string instance sharing the same data space as `txt`
	fun c_string_instance_fast_cstr(txt: CString, from: Int): Instance
	do
		var ncstr = txt.fast_cstring(from)
		var t = mainmodule.c_string_type

		var instance = new PrimitiveInstance[CString](t, ncstr)
		init_instance_primitive(instance)

		return instance
	end