# Return a new C string initialized with `txt`
	fun c_string_instance(txt: String): Instance
	do
		var instance = c_string_instance_len(txt.byte_length+1)
		var val = instance.val
		val[txt.byte_length] = 0
		txt.to_cstring.copy_to(val, txt.byte_length, 0, 0)

		return instance
	end