examples: fix missing header

Signed-off-by: Stephan Lachnit <stephanlachnit@debian.org>
This commit is contained in:
Stephan Lachnit 2022-08-12 13:36:12 +02:00
parent 7742eb3693
commit 3f8cc0ae99
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@ -1,6 +1,7 @@
#include <future>
#include <iostream>
#include <string>
#include <thread>
#include "zmq.hpp"
#include "zmq_addon.hpp"