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From: "Fred. Zwarts" <F.Zwarts@HetNet.nl>
Newsgroups: comp.theory
Subject: Re: Anyone with sufficient knowledge of C knows that DD specifies
 non-terminating behavior to HHH
Date: Fri, 14 Feb 2025 14:49:24 +0100
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Op 14.feb.2025 om 13:40 schreef olcott:
> On 2/14/2025 2:58 AM, Mikko wrote:
>> On 2025-02-14 00:07:23 +0000, olcott said:
>>
>>> On 2/13/2025 3:20 AM, Mikko wrote:
>>>> On 2025-02-13 04:21:34 +0000, olcott said:
>>>>
>>>>> On 2/12/2025 4:04 AM, Mikko wrote:
>>>>>> On 2025-02-11 14:41:38 +0000, olcott said:
>>>>>>
>>>>>>>> Of course not. However, the fact that no reference to that article
>>>>>>>> before or when HHH
>>>>>>>
>>>>>>> That paper and its code are the only thing that I have been 
>>>>>>> talking about in this forum for several years.
>>>>>>
>>>>>> Doesn't matter when you don't say that you are talking about that 
>>>>>> paper.
>>>>>>
>>>>>> Anyway, that is irrelevant to the fact that the subject line contains
>>>>>> a false claim.
>>>>>
>>>>> It is a truism and not one person on the face of the
>>>>> Earth can possibly show otherwise.
>>>>
>>>> The fact that the claim on subject line is false is not a truism.
>>>> In order to determine the claim is false one needs some knowledge
>>>> that is not obvious.
>>>
>>> When you try to show the steps attempting to show that
>>> it is false I will point out the error.
>>
>> Step 1: Find people who know C.
>> Step 2: Show them DD of OP and ask.
>>
>>> This is the only topic that I will discuss and any
> 
> typedef void (*ptr)();
> int HHH(ptr P);
> 
> int DD()
> {
>    int Halt_Status = HHH(DD);
>    if (Halt_Status)
>      HERE: goto HERE;
>    return Halt_Status;
> }
> 
> int main()
> {
>    HHH(DD);
> }
> 
> DD  correctly simulated by HHH cannot possibly terminate normally.

Indeed. The simulation by HHH fails to reach the end of the halting DD.
This shows that it is a bad idea to use a simulator to decide about 
halting/non-halting behaviour.