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You mention longjmp as useful in an STM implementation.

But you'd never see something like that in flight control software. Simplicity begets correctness. Correctness begets safety.

When the software is flying a rocket ship, I'm okay with it being 10% longer but 10% safer.



I wouldn't use threads in mission critical software such as that, so that solves the problem.


I think many people would be okay with it being 100% longer if you could quantify 10% increased safety.




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