(Implementation Details of Ruby 2.0 VM).succ 笹田 耕一 Koichi Sasada 1 ko1@atdot.net @koichisasada (“Implementation Details of Ruby 2.0 VM”).succ #=> "Implementation Details of Ruby 2.0 VN" 笹田 耕一 Koichi Sasada 2 ko1@atdot.net @koichisasada (Implementation Details of Ruby 2.0 VM).succ != Ruby 2.0 sucks 3 笹田 耕一 Koichi Sasada ko1@atdot.net @koichisasada (Implementation Details of Ruby 2.0 VM).succ == Rub