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RefCounts are dead.  Long live lazy copy-on-write.
- To: <tribble>
 
- Subject: RefCounts are dead.  Long live lazy copy-on-write.
 
- From: Mark S. Miller <mark>
 
- Date: Sat, 18 Nov 89 13:49:57 PST
 
- Cc: <xanatech>
 
- In-reply-to: <Eric>,47 PST <8911170456.AA11037@xanadu>
 
Date: Thu, 16 Nov 89 20:56:47 PST
   From: tribble (Eric Dean Tribble)
   Your suggestion strikes me as an interesting variant of a
   copy-on-write implementation.  It covers making ImmuTables from either
   MuTables or ImmuTables.  I don't think it handles making a MuTable
   from an ImmuTable (or MuTable).  
Why not?