Negated Types: Define Extract and Exclude in terms of intersections and negations - #64515
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Swaps
ExtracttoT & UandExcludetoT & not U, instead of their current conditional forms.This isn't a strict improvement - in some ways, it's a step backward. On the extreme end, consider that
Extract<T, any>previously yieldsT, but now yieldsany- the substitution behavior in conditionals hides the type erasureany(top level or nested) performs.