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From: olcott <polcott333@gmail.com>
Newsgroups: comp.lang.c++,comp.lang.c
Subject: Re: D correctly simulated by pure function H remains stuck in
 recursive simulation s
Date: Wed, 22 May 2024 14:57:44 -0500
Organization: A noiseless patient Spider
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On 5/22/2024 11:31 AM, Bonita Montero wrote:
> Am 22.05.2024 um 15:57 schrieb olcott:
>> Because D correctly simulated by pure function H remains stuck in
>> recursive simulation simulating termination analyzer H is correct
>> to report that D does not halt.
>>
>> typedef int (*ptr)();  // ptr is pointer to int function in C
>> 00       int H(ptr p, ptr i);
>> 01       int D(ptr p)
>> 02       {
>> 03         int Halt_Status = H(p, p);
>> 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       }
>>
>> It is trivial to see that for every H/D pair of the infinite
>> set of H/D pairs that match the above template that
>>
>> D correctly simulated by H cannot possibly reach its own final
>> state at line 06 and halt because D correctly simulated by
>> H remains stuck in recursive simulation.
>>
>> This provides the basis for simulating termination analyzer H to
>> correctly determine that the halting problem's counter-example
>> input D cannot possibly halt.
>>
> 
> Ok, then every question is answered and we could proceed to
> "sth. completely different" (Monty Python).
> 

*No this question has never been answered in this forum*

-- 
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer