I see what you're saying about defining "values" as specifically only the values which, at runtime, we happen to be using Compare on, which is an idea I hadn't

I see what you're saying about defining "values" as specifically only the values which, at runtime, we happen to be using Compare on, which is an idea I hadn't considered before - but I'm not sure how to square that with the way the rest of the language is defined. Maybe one day the proposed "Appendix" of all UB and IFNDR will actually explain clearly what the intended rules are. Corentin Jabot's "UB? In My Lexer?" showed that the ISO document is still very uh, unpolished after decades of effort.