Basically you’re using a C structure to track a flag using just one bit of storage. This way the flag is either set or not. ... Yeah, bit-fields = bad for embedded programming.

Structures (or “structs” in C) allow you to group several related variables and treat them as one unit. They are a mechanism for extending the type system of the C language by introducing user-defined ...

Programming C without variables is like, well, programming C without variables. They are so essential to the language that it doesn’t even require an analogy here. We can declare and use them… ...