Bug #2483: String#to_f of small numbers hangs

• Status: Closed
• Assignee: -
• ruby -v: ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-linux]

[mikisvaz (Miguel Vazquez)]

=begin
There is a problem in the String#to_f method. It hangs when the float is really small.

This works:
ruby-1.8 -e 'puts "1e-20".to_f'

This hangs:
ruby-1.8 -e 'puts "1e-100".to_f'
=end

[mikisvaz (Miguel Vazquez)]

=begin
I'm using archlinux. I've just tried several versions of the 1.8, the 174 and the 72 patches and both still hang. 1.9 works fine.
=end

[shyouhei (Shyouhei Urabe)]

• Status changed from Open to Feedback

=begin
Can you see if it still happens? I can't reproduce the situation on my machine now.
=end

[zimbatm (zimba tm)]

=begin
Can't reproduce the bug on Mac OS X 10.6.5 with ruby-1.8.7-p302
=end

[sorah (Sorah Fukumori)]

=begin
Can't reproduce on OSX10.6.5 and Debian squeeze (amd64) with 1.8 trunk.

[sorah@lemonade]:~/git/ruby/core18/builds/master% ruby -ve 'puts "1e-100".to_f'
ruby 1.8.8dev (2010-11-24) [i386-darwin10.5.0]
1.0e-100

[sorah@cleveland]:~/git/ruby/core18/builds/master% ruby -ve 'puts "1e-100".to_f'
ruby 1.8.8dev (2010-11-24) [x86_64-linux]
1.0e-100

=end

[jeremyevans0 (Jeremy Evans)]

• Description updated (diff)
• Status changed from Feedback to Closed