Issue #13146 has been updated by Kaneko Yuichiro. I reported similar issue on bigdecimal. I want to discuss this issue here. https://github.com/ruby/bigdecimal/issues/31 ---------------------------------------- Bug #13146: Float::NANs in Hashes are confusing (more than usual). https://bugs.ruby-lang.org/issues/13146#change-62726 * Author: Linus Sellberg * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.3.1p112 * Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN ---------------------------------------- ```ruby test = {Float::NAN => 1, -Float::NAN => 2} => {NaN=>1, NaN=>2} test.values_at(Float::NAN, -Float::NAN) => [1, nil] ``` I don't know what the correct behaviour ought to be, but it seems inconsistent to create a hash with two elements but not be able to extract both values. -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>