version numbers for classes in ClassDef

From: Chris Jillings (chris@owl.phy.queensu.ca)
Date: Wed Sep 23 1998 - 20:32:54 MEST


Hello,
   We may need to use the version number in ClassDef. We have have a data
structure that contains classes defined with ClassDef(ClassName,1). I want
to expand the data in the class but still be able to read the data already
written.
   Is there a doc which explain how to do this? The InputOutput.html
indicates it is possible but doesn't explain how to make both versions
accessible to the linker.

   Thank you,

Chris



=================================================================
=                                                               =
= Chris Jillings                                                =
= Department of Physics   phone/voice mail: (613) 545-6000x4805 =   
= Queen's University      fax: (613) 545-6813                   =
= Kingston, Ontario       email: chris@sno.phy.queensu.ca       =             
= Canada, K7L 3N6         web: http://sno.phy.queensu.ca        =
=                                                               =
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