super quick post "Do Expressive Programming Languages Always Have Undefined Behavior?" https://blog.regehr.org/archives/1476 also see Betteridge's law
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Replying to @johnregehr
If a language defines all arith, lacks eval, lacks RoT, and uses abstract refs not ptrs, it should be easy to make it UB-free.
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Replying to @dougallj @johnregehr
RoT is Representation of Types (6.2.6). Eval moves build-time UB to run-time UB.
5:13 PM - 6 Mar 2017
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