Add one more #include<functional>

This commit is contained in:
sdong 2019-11-05 09:25:25 -08:00
parent 7225953ea1
commit 7ec5bac7e0

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@ -5,6 +5,7 @@
#pragma once #pragma once
#include <condition_variable> #include <condition_variable>
#include <functional>
#include <mutex> #include <mutex>
#include <string> #include <string>
#include <unordered_set> #include <unordered_set>