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Unread 06-03-2006, 22:58
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Kevin Watson Kevin Watson is offline
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Re: Camera does not search in autonomous mode after reset

Quote:
Originally Posted by Keith Watson
Neither our code nor tracking.c uses switch statements. Camera.c does though and does not have default cases. Bad idea. I never write switch statements without a default case even if it just prints an error message.
Sure, on large, complex systems with lots of resources you'd instrument the code or HDL to catch such cases. Instrumenting a very simple state machine that cannot (by inspection) have an invalid state, in a resource constrained system where code readability is of paramount importance, doesn't make sense to me. If the static state variable isn't getting initialized at boot time, a wonky state machine is the least of your worries .
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