[Rd] an r-devel change related to attributes

Douglas Bates bates at stat.wisc.edu
Tue Oct 21 19:11:08 MEST 2003

We have made a change in r-devel involving copying during assignment
of attributes.  The only effect should be better performance in
packages that use S4 classes and methods.  However, if you are using
r-devel you should be watch for peculiar errors related to attributes.

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