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Re: At what point is a language so abstract that it simply cannot be compiled?

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John,

> [...
> There are plenty of problems that are known to be undecidable.  The
> best known is the halting problem.  You cannot write a program that
> can inspect any arbitrary program and always tell you whether the
> program it's inspecting will eventually halt or it will run forever.
....
> -John]

This wording of the halting problem tends to lead to all kinds of
misunderstandings.

I prefer to phrase it as:
It has been provided that there exist programs for which it is not
possible to deduce whether it will eventually halt or not.


For many programs it is possible to deduce whether they will
halt, or not.

--
Derek M. Jones
blog:shape-of-code.coding-guidelines.com

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At what point is a language so abstract that it simply cannot be compiled? "Costello, Roger L." <costello@mitre.org> - 2019-05-13 14:38 +0000
  Re: At what point is a language so abstract that it simply cannot be compiled? "Derek M. Jones" <derek@_NOSPAM_knosof.co.uk> - 2019-05-13 20:15 +0100
    Re: At what point is a language so abstract that it simply cannot be compiled? Jan Ziak <0xe2.0x9a.0x9b@gmail.com> - 2019-05-14 08:52 -0700
  Re: At what point is a language so abstract that it simply cannot be compiled? Martin Ward <martin@gkc.org.uk> - 2019-05-14 12:52 +0100
  Re: At what point is a language so abstract that it simply cannot be compiled? gah4@u.washington.edu - 2020-02-27 18:27 -0800

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