But then if you have some 3rd party library code using setjmp/longjmp (libjpeg and others) this would no long work with RAII - no unwinding would be done. That

But then if you have some 3rd party library code using setjmp/longjmp (libjpeg and others) this would no long work with RAII - no unwinding would be done. That is if the your library calls a "callback" which calls one of the said 3rd party libs (or your code) with longjmp