I have seen many tutorials on programming an Arduino to control a HC-05 bluetooth module. In that I did not understand the term called 'flag'. What does that mean?
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3And what is the context of this word?Majenko– Majenko04/22/2016 15:09:16Commented Apr 22, 2016 at 15:09
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1"Flag" is usually a feature that you can turn on or off. The "flag" is the variable that you need to use to do that. But as Majenko stated, with no context, it's just a guess I am taking here.fabrosell– fabrosell04/22/2016 15:10:21Commented Apr 22, 2016 at 15:10
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1 Answer
I've always used flag to indicate a boolean logic value. I would also suggest this is an archaic term.
Was going to come up with my own explanation but found the following at In C language, what does flag mean?:
A 'flag' is a variable that is supposed to signalize something. Think about the word itself - flags are used in sending signals. In our world of programming a basic boolean flag can either be "up" or "down", either true or false.
