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Re: US-CERT Vulnerability Note VU#162289
Paul Koning wrote:
That said, it certainly is helpful if the compiler can detect some
undefined actions and warn about them. But that doesn't create a duty
to warn about all of them.
If it were reasonable to require a compiler to generate a warning
for a particular case, the standard would have made it an error.
The whole point in allowing undefined behavior is that in certain
cases, it is too onerous for a compiler to be required to detect
the undefined behavior, so it is not required to do so.