Path: ...!weretis.net!feeder9.news.weretis.net!news.nk.ca!rocksolid2!i2pn2.org!.POSTED!not-for-mail From: Richard Damon Newsgroups: comp.theory Subject: Re: Anyone with sufficient knowledge of C knows that DD specifies non-terminating behavior to HHH Date: Sun, 16 Feb 2025 20:08:41 -0500 Organization: i2pn2 (i2pn.org) Message-ID: References: <3b8a5f4be53047b2a6c03f9678d0253e137d3c40@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 17 Feb 2025 01:08:41 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="390016"; mail-complaints-to="usenet@i2pn2.org"; posting-account="diqKR1lalukngNWEqoq9/uFtbkm5U+w3w6FQ0yesrXg"; User-Agent: Mozilla Thunderbird In-Reply-To: Content-Language: en-US X-Spam-Checker-Version: SpamAssassin 4.0.0 Bytes: 4105 Lines: 59 On 2/16/25 4:58 PM, olcott wrote: > On 2/16/2025 2:02 PM, joes wrote: >> Am Sun, 16 Feb 2025 13:24:14 -0600 schrieb olcott: >>> On 2/16/2025 10:35 AM, joes wrote: >>>> Am Sun, 16 Feb 2025 06:51:12 -0600 schrieb olcott: >>>>> On 2/15/2025 2:49 AM, Mikko wrote: >>>>>> On 2025-02-14 12:40:04 +0000, olcott said: >>>>>>> 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: >> >>>>>>>>> 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. >>>>>> >>>>>> That claim has already shown to be false. Nothing above shows that >>>>>> HHH does not return 0. If it does DD also returns 0. >>>>> When we are referring to the above DD simulated by HHH and not trying >>>>> to get away with changing the subject to some other DD somewhere else >>>> such as one that calls a non-aborting version of HHH >>>> >>>>> then anyone with sufficient knowledge of C programming knows that no >>>>> instance of DD shown above simulated by any corresponding instance of >>>>> HHH can possibly terminate normally. >>>> Well, then that corresponding (by what?) HHH isn’t a decider. >>> I am focusing on the isomorphic notion of a termination analyzer. >> >> (There are other deciders that are not termination analysers.) >> >>> A simulating termination analyzer correctly rejects any input that must >>> be aborted to prevent its own non-termination. >> Yes, in particular itself is not such an input, because we *know* that >> it halts, because it is a decider. You can’t have your cake and eat it >> too. >> > > I am not even using the confusing term "halts". > Instead I am using in its place "terminates normally". > > DD correctly simulated by HHH cannot possibly terminate normally. > Since DD isn't correctly simulated by the HHH that you say is HHH, you are just shown to be a liar.n