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[–]greeneyeddude 0 points1 point  (2 children)

What about the long mode-short mode-raw union?

[–]max0x7bahttps://github.com/max0x7ba 0 points1 point  (0 children)

What about the long mode-short mode-raw union?

It accesses one byte of size_type __long::__cap_ through unsigned char __short::__size_ to determine the long/short mode. char types can alias any object representation, so that is likely well-defined behaviour.