>> Has anyone implemented a filesystem with copy-on-write semantics?  I'd like
[...]

>Such a thing has once been implemented in the Eumel programming
>environment.  (Eumel is based around the Elan languague, which is Algol
[...]
>in lines and only modified lines are un-shared. Uninterestingly, FILE
>was defined as something like array of array of characters, with fixed
>upper limits, which made the whole thing useless.

Oh, I don't know if that was the problem.  I found Elan, in general,
to be pretty useless... ;-)

-----------------------------------------------------------------------------
  Michael L. VanLoon                                 michaelv@HeadCandy.com
        --<  Free your mind and your machine -- NetBSD free un*x  >--
    NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3,
        Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
    NetBSD ports in progress: PICA, others...

   Roll your own Internet access -- Seattle People's Internet cooperative.
                  If you're in the Seattle area, ask me how.
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