Path: ...!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: immibis Newsgroups: comp.theory Subject: Re: Every D(D) simulated by H presents non-halting behavior to H ### Date: Mon, 13 May 2024 06:54:30 +0200 Organization: A noiseless patient Spider Lines: 41 Message-ID: References: <-5Gdnf-nQvstC6b7nZ2dnZfqnPadnZ2d@brightview.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 13 May 2024 06:54:31 +0200 (CEST) Injection-Info: dont-email.me; posting-host="d2008c1c49405973cf4ca07ee8802bc1"; logging-data="3448410"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1++oiNfpKeFRSRWZ+jrpzr2" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:EiMHBMW6exH71OZ3oalXnlNqpGA= Content-Language: en-US In-Reply-To: Bytes: 2658 On 10/05/24 19:55, Alan Mackenzie wrote: > [ Followup-To: set ] > > In comp.theory olcott wrote: > > [ .... ] > > I've tried out your much spammed code on GCC (see below). It is clear > you have never built or run this code, which ironically can't reach Line > 06. It can't even reach line 00. > >> Richard tried to get away with D never simulated by H as an example >> of D simulated by H: > >> Message-ID: >> On 5/1/2024 7:28 PM, Richard Damon wrote: > >> *That people say they know I am wrong yet will not show the detailed* >> *steps of how I am wrong indicates that they are probably liars* > > You have said, or at least implied that your code fragment is runnable. > I think you are the liar, here. > >> 00 int H(ptr x, ptr x) // ptr is pointer to int function >> 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 } > > > . These are the diagnostics generated by GCC: > And the halting problem is about Turing machines, anyway.