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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: Every D(D) simulated by H presents non-halting behavior to H ###
Date: Fri, 17 May 2024 13:56:55 +0300
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On 2024-05-16 16:39:20 +0000, olcott said:

> On 5/16/2024 11:15 AM, Alan Mackenzie wrote:
>> olcott <polcott333@gmail.com> wrote:
>>> On 5/16/2024 5:48 AM, Mikko wrote:
>>>> On 2024-05-15 15:24:57 +0000, olcott said:
>> 
>> [ .... ]
>> 
>>>> Normal semantics is that the program is not executed.
>> 
>> Indeed.
>> 
>>>>> typedef int (*ptr)();  // ptr is pointer to int function
>>>>> 00 int H(ptr x, ptr x);
>>>>> 01 int D(ptr x)
>>>>> 02 {
>>>>> 03   int Halt_Status = H(x, x);
>>>>> 04   if (Halt_Status)
>>>>> 05     HERE: goto HERE;
>>>>> 06   return Halt_Status;
>>>>> 07 }
>>>>> 08
>>>>> 09 int main()
>>>>> 10 {
>>>>> 11   H(D,D);
>>>>> 12   return 0;
>>>>> 13 }
>> 
>>>> Can you find any compiler that is liberal enough to accept that?
>> 
>>> It has been fully operational code under Windows and
>>> Linux for two years.
>> 
>> That is another of your lies.  It's largely why I despise you so much.
>> 
>> Although you've fixed the missing semicolon on line 0 (at last), it still
>> fails to compile under any C compiler worthy of the name.  With all the
>> errors in it it still would have failed to compile under Linux or Windows
>> ever since it was written.
>> 
>> Quit lying.  And fix that program fragment, assuming your C skills are up
>> to it.
> 
> There are many postings in this group providing the
> actual execution trace output of that program.
> It was named H and had input P,P back in 2021.
> 
> The record shows that you responded to these posts
> that had the actual execution trace output provided.
> 
> My code fragment is a program template. I have told you this
> countless times and you simply ignore what I say.

If you want to talk about the program before or istead of correcting the
errors, do so in comp.lang.c but not here.

-- 
Mikko