From: Paul Lambert <redmine@...>
Date: 2009-04-22T16:27:28+09:00
Subject: [ruby-core:23282] [Bug #1396] Kernel.sleep fails with some Float values

Bug #1396: Kernel.sleep fails with some Float values
http://redmine.ruby-lang.org/issues/show/1396

Author: Paul Lambert
Status: Open, Priority: Normal
Category: core
ruby -v: ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9] 

I'm on Mac OS X Leopard 10.5.6, running ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9]

irb(main):003:0> sleep (0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1)
Errno::EINVAL: Invalid argument - sleep
	from (irb):3:in `sleep'
	from (irb):3
	from :0
irb(main):004:0> x= (0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1)
=> 1.0
irb(main):005:0> x.inspect
=> "1.0"
irb(main):006:0> sleep x
Errno::EINVAL: Invalid argument - sleep
	from (irb):6:in `sleep'
	from (irb):6
	from :0
irb(main):007:0> sleep (x+0.0)
Errno::EINVAL: Invalid argument - sleep
	from (irb):7:in `sleep'
	from (irb):7
	from :0
irb(main):018:0> sleep((x*100.0)/100.0)
Errno::EINVAL: Invalid argument - sleep
	from (irb):18:in `sleep'
	from (irb):18
	from :0
irb(main):019:0> sleep((x*100.0).to_i/100.0)
=> 1


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