It is certainly true that many C programs have edge cases which trigger UB. I also have written many such programs where I did not care. This does not contradic

It is certainly true that many C programs have edge cases which trigger UB. I also have written many such programs where I did not care. This does not contradict my statement though. There are programmers who meticulously care (and/or have to care) about getting the edge cases right and this is entirely possible.