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Aurornistoday at 3:11 PM2 repliesview on HN

I never would have guessed that the unreachable() function would get executed in that example. Probably not something you’d encounter in practice, though I have seen some weird things happen with layers of #ifdef


Replies

saghmtoday at 4:54 PM

That's kind of what you get with UB; the compiler doesn't need to do what you expect.

mathisfun123today at 5:04 PM

> Probably not something you’d encounter in practice

it's actually probably the most common footgun you'll encounter in practice: non-void functions with no return statements just keep executing past their end. ask me how i know.

compile with -Wreturn-type if you want to avoid such things...

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