Issue #19839 has been updated by shouichi (Shouichi KAMIYA). Honestly, I can't give a formal reason. But I do believe it's a very basic operation. For example, postgres and boost provide such functionality. - https://www.postgresql.org/docs/15/functions-range.html - https://www.boost.org/doc/libs/1_83_0/libs/numeric/interval/doc/interval.htm ---------------------------------------- Feature #19839: Need a method to check if two ranges overlap https://bugs.ruby-lang.org/issues/19839#change-104550 * Author: shouichi (Shouichi KAMIYA) * Status: Open * Priority: Normal ---------------------------------------- It would be convenient to have a method that checks if two ranges overlap. For example, ``` (0..10).overlap?(5..15) #=> true (0..10).overlap?(20..30) #=> false ``` -- https://bugs.ruby-lang.org/