From: Yui NARUSE <naruse@...>
Date: 2012-01-12T07:46:53+09:00
Subject: [ruby-core:42067] [ruby-trunk - Bug #5884] Float::NAN and 0.0/0.0 is represented differently when packed with 'g'


Issue #5884 has been updated by Yui NARUSE.


I can't understand why it is nice and least confusing if 0.0/0.0 equals Float::NAN as a binary.
Could you show a use case or reasonable logic?
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Bug #5884: Float::NAN and 0.0/0.0 is represented differently when packed with 'g'
https://bugs.ruby-lang.org/issues/5884

Author: Hiro Asari
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0dev (2011-12-31 trunk 34165) [x86_64-darwin11.2.0] 


$ ruby2.0 -e 'p [Float::NAN].pack("g")'
"\x7F\xC0\x00\x00"

$ ruby2.0 -e 'p [0.0/0.0].pack("g")'
"\xFF\xC0\x00\x00"

It would be nice to have Float::NAN and 0.0/0.0 behave identically in this regard.


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