Since, according to Chandler Carruth, the aim for Clang is to not do optimizations based on undefined behaviour without a corresponding instrument in ubsan[0], I don&#x27;t see much traction on this well-defined&#x2F;boring C effort.<p>You know, in my experience, things would  be great if people actually turned on warnings. I write all my new code with -Weverything with a few noise categories turned off. Everybody should build code at this level from day 1.<p>[0] <a href="http:&#x2F;&#x2F;clang.llvm.org&#x2F;docs&#x2F;UndefinedBehaviorSanitizer.html" rel="nofollow">http:&#x2F;&#x2F;clang.llvm.org&#x2F;docs&#x2F;UndefinedBehaviorSanitizer.html</a>