Issue #6179 has been updated by luislavena (Luis Lavena). Category set to core Status changed from Open to Feedback Priority changed from High to Normal ---------------------------------------- Bug #6179: File::pos broken in Windows 1.9.3p125 https://bugs.ruby-lang.org/issues/6179#change-24981 Author: jmthomas (Jason Thomas) Status: Feedback Priority: Normal Assignee: Category: core Target version: 1.9.3 ruby -v: 1.9.3p125 Calling the pos method on a File in the Windows version of Ruby on 1.9.3p125 moves the file pointer. Thus it can not be called without side effect. -- http://bugs.ruby-lang.org/