[ruby-core:114988] [Ruby master Feature#13933] Add Range#empty?
From:
"kyanagi (Kouhei Yanagita) via ruby-core" <ruby-core@...>
Date:
2023-10-10 01:50:02 UTC
List:
ruby-core #114988
Issue #13933 has been updated by kyanagi (Kouhei Yanagita). While this is slightly off-topic, it's relevant to `MINIMUM`, so I'm noting it here. `0.0..Float::INFINITY` represents the entire range of floating-point numbers that is greater or equal to 0.0. Therefore, semantically, the range represented by `0.0..Float::INFINITY` should be the same as `0.0..`, but the following results contradict this: ``` (0.0..Float::INFINITY).cover?(0.0..) # => false (0.0..).cover?(0.0..Float::INFINITY) # => true ``` To make this work "correctly", we need the information that `Float::INFINITY` is the maximum value. If there is any handling regarding the minimum value, it might be necessary to have a similar approach for the maximum value as well. ---------------------------------------- Feature #13933: Add Range#empty? https://bugs.ruby-lang.org/issues/13933#change-104858 * Author: ted (Ted Johansson) * Status: Open * Priority: Normal ---------------------------------------- Range already responds to #size. It would be nice if it also responded to predicate #empty? :-) -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/