Hellboy questions

• File Size to store an integer
• Nokogiri was built against LibXML version 2.9.1, but has dynamically loaded 2.8.0
• Hash "has_key" complexity in Ruby
• when is after_touch callback in rails called
• Removing subproject commit from github
• Floating point error in while loop in C++
• Run a rails query in batches

Hellboy answers