[Quekid5]

Good. I wonder how many people do and also if their compilers support it. (One would hope so, of course. I assume clang and GCC do.)

... but the question is really what you ship to production.

Btw, possible signed overflow was just an example of things people do not want warnings for. OOB is far more dangerous, obviously... and the cost for sanitizer in that case is HUGE... and it doesn't actually catch all cases AFAIUI.

[gpderetta]

For OOB you can enable bound checking in the C++ standard library. That's relatively cheap. Of course it won't help with C raw pointers and C array.

[uecker]

For production one could use -fsanitize-undefined-trap-on-error that turns it into traps. I would not describe the cost of -fsanitize-undefined=bounds has huge. The cost of Asan is huge.