to_f near Float::MAX
--------------------
Key: JRUBY-3331
URL: http://jira.codehaus.org/browse/JRUBY-3331
Project: JRuby
Issue Type: Bug
Components: RubySpec
Affects Versions: JRuby 1.1.5
Environment: jruby --version
jruby 1.1.5 (ruby 1.8.6 patchlevel 114) (2009-01-02 rev 6586) [i386-java]
uname -a
Linux ******** 2.6.16.46-0.12-smp #1 SMP Thu May 17 14:00:09 UTC 2007 i686 i686
i386 GNU/Linux
cat /etc/SuSE-release
SUSE Linux Enterprise Desktop 10 (i586)
VERSION = 10
PATCHLEVEL = 1
Reporter: Karl Brodowsky
Priority: Critical
Fix For: JRuby 1.2, JRuby 1.x+
conversion to Floating Point does not work well near Float::MAX.
10.0**308 can be expressed.
conversion of x=(Float::MAX).to_i()/2 works
conversion of y>(Float::MAX).to_i()/2 does not work or at least not always
where it should.
Example:
jruby -e "puts (10**308).to_f"
NaN
ruby -e "puts (10**308).to_f"
1.0e+308
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