Hi, > I'm talking about the specific implementation of the virtual table - the > layout of the function pointers relative to the "this" pointer. The > location and format of the vtable relative to the "this" pointer in Visual > C++ is patented by Microsoft. I wish I knew the patent number...
I think it's US Patent 5,297,284, "Method and system for implementing virtual functions and virtual base classes and setting a this pointer for an object-oriented programming language". Here's a direct URL (split over 4 lines 'cos it was too long): http://patft.uspto.gov/netacgi/nph-Parser? Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1& u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1='5297284'.WKU.& OS=PN/5297284&RS=PN/5297284 Standard disclaimer applies to this post - I am not a lawyer. :-P Regards, Jon -- "The knack of flying is learning how to throw yourself at the ground and miss." - Hitchhiker's Guide to the Galaxy E-mail: [EMAIL PROTECTED] web: http://www.jon-foster.co.uk/ ----- Original Message ----- "Barubary" <[EMAIL PROTECTED]> wrote: > > Aren't virtual tables a feature of "C++"? > > > > cgf > > I'm talking about the specific implementation of the virtual table - the > layout of the function pointers relative to the "this" pointer. The > location and format of the vtable relative to the "this" pointer in Visual > C++ is patented by Microsoft. I wish I knew the patent number... > > -- Barubary -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
