Why Empty message in std_msg?
As in the title, I don't understand why is there an Empty type in std_msgs? What is it used for?
Thanks!
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It can be useful in situations where you don't particularly care about content of a message, but just that one has been received. Example: maybe a bump sensor would use an empty message because you just care that you hit something, there may be no other information available worth giving a client.
Asked: 2019-05-26 16:27:10 -0500
Seen: 418 times
Last updated: May 26 '19
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