[1.9] (1.0/0).to_r falls into infinite loop
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Key: JRUBY-4312
URL: http://jira.codehaus.org/browse/JRUBY-4312
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules, Ruby 1.9
Affects Versions: JRuby 1.4
Environment: github trunk, Java 6, Mac OS X 10.6.2
Reporter: Hiro Asari
Fix For: JRuby 1.5
Attachments: 0001-1.9-1.0-0-.to_r-falls-into-infinite-loop.patch
...or, more precisely, org.jruby.util.Numeric.frexp never returns if the first
argument is Infinity.
According to frexp(3):
frexp(+-infinity, exp) returns +-infinity, and stores an unspecified
value in the object pointed to by exp.
frexp(Nan, exp) returns a Nan, and stores an unspecified value in the
object pointed to by exp.
This is in SUSv2: http://opengroup.org/onlinepubs/007908775/xsh/frexp.html (and
probably other more recent specifications as well).
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