From: Motohiro KOSAKI <kosaki.motohiro@...>
Date: 2011-09-07T08:09:30+09:00
Subject: [ruby-core:39313] [Backport93 - Backport #5272] Float#round doesn't round big values


Issue #5272 has been updated by Motohiro KOSAKI.


If I parsed this thread correctly, this bug is not a regression. therefore it isn't 1.9.3p0 material. I think.
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Backport #5272: Float#round doesn't round big values
http://redmine.ruby-lang.org/issues/5272

Author: Marc-Andre Lafortune
Status: Open
Priority: Normal
Assignee: 
Category: core
Target version: 1.9.3


For large enough values (outside of Fixnum range), Float#round does not round at all but simply truncates:

  2.999999999999999e20.round(-20) # => 200000000000000000000

Fixed in trunk, but would be nice to backport for Ruby 1.9.3.



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