From: mail@... Date: 2017-01-27T07:46:56+00:00 Subject: [ruby-core:79281] [Ruby trunk Bug#13146] Float::NANs in Hashes are confusing (more than usual). Issue #13146 has been updated by Stefan Sch����ler. Nobuyoshi Nakada wrote: > Are you suggesting to make infinities and a NaN multiton? I don't know how these are implemented, but I'd expect `-Float::NAN` to work like `Float:NAN` in that regard. If I'm not mistaken, theres only one `Float::NAN` instance. Having multiple instances of `-Float::NAN` on the other hand is _very_ confusing. ---------------------------------------- Bug #13146: Float::NANs in Hashes are confusing (more than usual). https://bugs.ruby-lang.org/issues/13146#change-62696 * 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: