Hoare, Communicating Sequential Processes, and JCSP

Bjarne Däcker <>
Wed Feb 12 12:07:32 CET 2003


Hi

>Actually I've recently taken up Erlang compuarchaeology as a hobby,
>after Bjarne Däcker and Göran Båge were nice enough to get me some old
>manuals for EriPascal (a quite Erlang-like concurrent extension of
>Pascal for realtime system programming) and its ancestor the APN163
>processor/operating system that had processes and very-simple message
>passing. But following this trail by itself doesn't cover all of
>Erlang influences, since I don't see where the Dijkstra/Hoare/???
>ingredients really came in. So there might be some more groovy stuff
>to check out.. but what?

I don't think that Dijkstra/Hoare had
such direct influence.

Wirth was very important because
of Pascal, Modula and PL360.

Also the telecomms experience itself
like in SDL or Chill.

Bjarne


PS. On my wall I have a framed photograph
of myself presenting PASTEL for Niklaus
Wirth. That was some experimental
language that we were working on at the
same time as he was working on Modula.
I actually listened to his first lecture
presenting Modula for his students in
Zürich in hoch deutsch!

Instead of PASTEL there came EriPascal
but just imagine how beautiful manuals
we could have printed!





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