But why did they make it Undefined Behavior instead of Implementation Defined? I... | Hacker News

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		bxparks on Jan 21, 2024 \| parent \| context \| favorite \| on: So you think you know C? (2016) But why did they make it Undefined Behavior instead of Implementation Defined? I love the C language, but there are now so many UBs in the language, it is painful to use.

ryao on Jan 21, 2024 [–]

If they did, we would have two subtly different dialects of C for cyclic shift and zeroing shift, and possibly even worse, combinations of the two.

That said, I am curious what the official answer is myself.

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