- You are still so full of shit - 14 Updates
- "Is C++ fast?" - 2 Updates
- Code to investigate basics of destructor - 4 Updates
- AddressSanitizer workflows? - 1 Update
- Learning modern C++, where to start? - 3 Updates
- Memory model of C++ considered limited - 1 Update
| "Chris M. Thomasson " <ahh_f_it@crap.nothing>: Jan 18 04:00PM -0800 On 1/18/2019 5:51 AM, Queequeg wrote: >> Subject: Re: You are still so full of shit > Actually, he was. He was so full that he finally exploded and it floods > the group since then. This reminds me of a funny scene in Big Trouble in Little China: https://youtu.be/A65Jq6NKdeI?t=98 ;^) |
| "Chris M. Thomasson " <ahh_f_it@crap.nothing>: Jan 18 04:06PM -0800 On 1/18/2019 7:23 AM, Mr Flibble wrote: > I have to disagree: that god provably does not exist because it is > predicated on the Abrahamic bible being true and that bible is provably > false. Is this one of God's many forms: https://youtu.be/aighXfsZkPg ;^) |
| "Chris M. Thomasson" <ahh_f_it@crap.nothing>: Jan 18 04:22PM -0800 On 1/18/2019 9:08 AM, Mr Flibble wrote: > No I am not wrong: yes it is not possible to prove there are no gods at > all but it is entirely possible to disprove a SPECIFIC god such as the > god of Abraham. I am wondering what you might think about the following: https://groups.google.com/forum/?hl=de#!original/comp.arch/V1PRvI3U7vU/YUXVL3Vd5nIJ I received the following response from a _very_ smart person, that happens to be an Atheist: https://groups.google.com/forum/?hl=de#!original/comp.arch/V1PRvI3U7vU/ZO9_EShYy6wJ Pretty nice. This is kind of similar to my A religion posted in here: A says: _______________ Try to live a good life, because there is this thing called Jail. If you want to donate to A, please give your money to a charity of your own choice. Red Cross? Wounded Warriors? A friend in need, ect... A says, try to do these things wrt money/donations when you can comfortably afford it. Never give your money away if you cannot afford to do so, family first! A says becoming rich is not bad. A says living a good life is a given for we should all strive for that simple thing. _______________ End Of Line. If LR_H can create a religion, anybody can? |
| fir <profesor.fir@gmail.com>: Jan 18 05:15PM -0800 W dniu piątek, 18 stycznia 2019 18:27:39 UTC+1 użytkownik David Brown napisał: > people would not need to have faith. Indeed, the Christian god > /requires/ that there be alternative rational explanations for our > existence, so that people can choose to believe in him/her/it. faith is what lier imposes on cheated find me other case of faith..this could be a problem |
| "Chris M. Thomasson " <ahh_f_it@crap.nothing>: Jan 18 09:26PM -0800 On 1/9/2019 2:31 PM, Rick C. Hodgin wrote: > goal, and I am moving steadily toward achieving all of it. My > current timeline takes me through 2025 ... but we'll see, many > many many things can happen between now and then. How can one install it for themselves? |
| "Rick C. Hodgin" <rick.c.hodgin@gmail.com>: Jan 19 02:30AM -0800 On Saturday, January 19, 2019 at 12:26:54 AM UTC-5, Chris M. Thomasson wrote: > > current timeline takes me through 2025 ... but we'll see, many > > many many things can happen between now and then. > How can one install it for themselves? There's a plan, a process, and a schedule I'm on. At various milestones there will be installation bundles available for people to download and try. These will likely consist of Oracle VirtualBox virtual machines at first. It's going to be a while, Chris. At east mid-2020 as it's looking now due to my several-month delay for my current side-step gaming projects diversion. -- Rick C. Hodgin |
| queequeg@trust.no1 (Queequeg): Jan 19 11:57AM > This reminds me of a funny scene in Big Trouble in Little China: > https://youtu.be/A65Jq6NKdeI?t=98 Yup, something like that, only more brown :) -- https://www.youtube.com/watch?v=9lSzL1DqQn0 |
| Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Jan 19 03:51PM On 19/01/2019 10:30, Rick C. Hodgin wrote: > It's going to be a while, Chris. At east mid-2020 as it's looking > now due to my several-month delay for my current side-step gaming > projects diversion. So God's work is no longer a priority? Video games are of the Devil. /Flibble -- "You won't burn in hell. But be nice anyway." – Ricky Gervais "I see Atheists are fighting and killing each other again, over who doesn't believe in any God the most. Oh, no..wait.. that never happens." – Ricky Gervais "Suppose it's all true, and you walk up to the pearly gates, and are confronted by God," Bryne asked on his show The Meaning of Life. "What will Stephen Fry say to him, her, or it?" "I'd say, bone cancer in children? What's that about?" Fry replied. "How dare you? How dare you create a world to which there is such misery that is not our fault. It's not right, it's utterly, utterly evil." "Why should I respect a capricious, mean-minded, stupid God who creates a world that is so full of injustice and pain. That's what I would say." |
| "Rick C. Hodgin" <rick.c.hodgin@gmail.com>: Jan 19 10:19AM -0800 On Saturday, January 19, 2019 at 10:51:13 AM UTC-5, Mr Flibble wrote: > > now due to my several-month delay for my current side-step gaming > > projects diversion. > So God's work is no longer a priority? Video games are of the Devil. In case the content of this post wasn't clear to you, I'll re-iterate so it will be clear now: https://groups.google.com/d/msg/comp.lang.c++/CKm7XiUNp4M/mfHeCBUHCQAJ I'm done communicating with you, Leigh. I wish you well in your life, I wish you success in your various endeavors, I hold no ill will a- gainst you, nor wish any harm unto you, but you and I will part ways at this time. Take care of yourself. Go back and read the many things you glossed over with your [tl;dr] replies. The content I posted for you is on the public / permanent record, and it will serve you well. Good bye. -- Rick C. Hodgin |
| Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Jan 19 06:23PM On 19/01/2019 18:19, Rick C. Hodgin wrote: > I wish you success in your various endeavors, I hold no ill will a- > gainst you, nor wish any harm unto you, but you and I will part ways > at this time. Answer the question. So God's work is no longer a priority? Video games are of the Devil. > Take care of yourself. Go back and read the many things you glossed > over with your [tl;dr] replies. The content I posted for you is on > the public / permanent record, and it will serve you well. Serve me well? Nonsense. A) Your bible is false. B) Your god the existence of which is predicated on your bible being true is, given (A) also false. /Flibble -- "You won't burn in hell. But be nice anyway." – Ricky Gervais "I see Atheists are fighting and killing each other again, over who doesn't believe in any God the most. Oh, no..wait.. that never happens." – Ricky Gervais "Suppose it's all true, and you walk up to the pearly gates, and are confronted by God," Bryne asked on his show The Meaning of Life. "What will Stephen Fry say to him, her, or it?" "I'd say, bone cancer in children? What's that about?" Fry replied. "How dare you? How dare you create a world to which there is such misery that is not our fault. It's not right, it's utterly, utterly evil." "Why should I respect a capricious, mean-minded, stupid God who creates a world that is so full of injustice and pain. That's what I would say." |
| fir <profesor.fir@gmail.com>: Jan 19 10:46AM -0800 W dniu sobota, 19 stycznia 2019 19:20:01 UTC+1 użytkownik Rick C. Hodgin napisał: > over with your [tl;dr] replies. The content I posted for you is on > the public / permanent record, and it will serve you well. > Good bye. your assumptions that you will go to heaven ery stupid dik are not much justified im afraid youre terrible dork imbecile and moron and that is quite common opinion - ahat would be that heven if you would go there before normal people (people of somewhat higher quality than you- simple moron ad impertinent dick) that would be poor heaven, heaven for pigs, annoying idiots? i guess you would rather go to hell as being preposterous well know shit maker and imbecile redneck and so on |
| "Rick C. Hodgin" <rick.c.hodgin@gmail.com>: Jan 19 11:17AM -0800 On Saturday, January 19, 2019 at 1:47:01 PM UTC-5, fir wrote: > [snip] I haven't yet given up on you, fir. You call me names, insult, and belittle me, fir, because you've let sin into your life by your choices against God. With that sin has come evil spirits, literal spirit beings co-habitating within your one body. It causes you to hear their thoughts, feel their emotions, be driven by their impulses, all of which you think are only your own thoughts, feelings, emotions, because all you have to discern your existence is your flesh, and are therefore unaware they are there causing you much harm. Jesus is the way to overcome them because He overcame them by His death on the cross, and subsequent resurrection from the dead. You spew venom at me because those evil spirits you harbor know I am speaking the truth and do not want you to believe it, for if you did they would be cast out and no longer have physical inter- action with this world (as spirits are literally non-corporeal). I know you won't believe any of this, and will choose to call me additional names with further insults, but I tell you the truth because I care about you and want you to be saved. Seek to prove or disprove what I've written, but do so in a full pursuit of the truth. Seek the true answer whether it leads you this way or that way. Just seek the honest truth with sincerity and singular focus. -- Rick C. Hodgin |
| Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Jan 19 07:19PM On 19/01/2019 19:17, Rick C. Hodgin wrote: > I haven't yet given up on you, fir. > You call me names, insult, and belittle me, fir, because you've > let sin into your life by your choices against God. Nonsense. A) Your bible is false. B) Your god the existence of which is predicated on your bible being true is, given (A) also false. [snip tl;dr] /Flibble -- "You won't burn in hell. But be nice anyway." – Ricky Gervais "I see Atheists are fighting and killing each other again, over who doesn't believe in any God the most. Oh, no..wait.. that never happens." – Ricky Gervais "Suppose it's all true, and you walk up to the pearly gates, and are confronted by God," Bryne asked on his show The Meaning of Life. "What will Stephen Fry say to him, her, or it?" "I'd say, bone cancer in children? What's that about?" Fry replied. "How dare you? How dare you create a world to which there is such misery that is not our fault. It's not right, it's utterly, utterly evil." "Why should I respect a capricious, mean-minded, stupid God who creates a world that is so full of injustice and pain. That's what I would say." |
| fir <profesor.fir@gmail.com>: Jan 19 11:37AM -0800 W dniu sobota, 19 stycznia 2019 20:17:58 UTC+1 użytkownik Rick C. Hodgin napisał: > pursuit of the truth. Seek the true answer whether it leads you > this way or that way. Just seek the honest truth with sincerity > and singular focus. you talk lies on me stupid moron - and that is why you rather will go to hell.. along with many other things you heard poor psychopath dick |
| Lynn McGuire <lynnmcguire5@gmail.com>: Jan 19 01:13PM -0600 "Is C++ fast?" https://www.osnews.com/story/129217/is-c-fast/ "A library that I work on often these days, meshoptimizer, has changed over time to use fewer and fewer C++ library features, up until the current state where the code closely resembles C even though it uses some C++ features. There have been many reasons behind the changes – dropping C++11 requirement allowed me to make sure anybody can compile the library on any platform, removing std::vector substantially improved performance of unoptimized builds, removing algorithm includes sped up compilation. However, I've never quite taken the leap all the way to C with this codebase. Today we'll explore the gamut of possible C++ implementations for one specific algorithm, mesh simplifier, henceforth known as simplifier.cpp, and see if going all the way to C is worthwhile." https://zeuxcg.org/2019/01/17/is-c-fast/ Lynn |
| Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Jan 19 07:18PM On 19/01/2019 19:13, Lynn McGuire wrote: > for one specific algorithm, mesh simplifier, henceforth known as > simplifier.cpp, and see if going all the way to C is worthwhile." > https://zeuxcg.org/2019/01/17/is-c-fast/ Who cares about the performance of unoptimized builds? I certainly don't. std::vector will be slower probably due to checked iterators which can be highly useful in finding problems in debug builds (and you can also turn that feature off). Seriously changing an existing C++ codebase to make it pre-C++11 really is a dumb idea. This is 2019. /Flibble -- "You won't burn in hell. But be nice anyway." – Ricky Gervais "I see Atheists are fighting and killing each other again, over who doesn't believe in any God the most. Oh, no..wait.. that never happens." – Ricky Gervais "Suppose it's all true, and you walk up to the pearly gates, and are confronted by God," Bryne asked on his show The Meaning of Life. "What will Stephen Fry say to him, her, or it?" "I'd say, bone cancer in children? What's that about?" Fry replied. "How dare you? How dare you create a world to which there is such misery that is not our fault. It's not right, it's utterly, utterly evil." "Why should I respect a capricious, mean-minded, stupid God who creates a world that is so full of injustice and pain. That's what I would say." |
| Paul <pepstein5@gmail.com>: Jan 19 03:45AM -0800 I compiled and ran the following: Note that the whole purpose is to learn about how the destructor works. I'm not saying that explicitly calling the destructor here is good practice. I have two questions. 1) Why do I need this-> for an explicit destructor call? ~Test() gives a compiler error on the grounds of no match for operator ~ I don't understand why we need an explicit this here. 2) The output is "yes x = 0 yes". Why does the call to print() work after the destructor has been called to destroy the object? Thank you, Paul #include<iostream> using namespace std; class Test { private: int x; public: ~Test() { cout << " yes ";} Test() {x = 0;} void destroy() {this->~Test(); } void print() { cout << "x = " << x; } }; int main() { Test obj; obj.destroy(); obj.print(); return 0; } |
| Barry Schwarz <schwarzb@dqel.com>: Jan 19 05:13AM -0800 On Sat, 19 Jan 2019 03:45:46 -0800 (PST), Paul <pepstein5@gmail.com> wrote: > Test obj; > obj.destroy(); > obj.print(); This statement causes undefined behavior since obj no longer exists (in the way the standard describes the lifetime of an object). However, the memory it occupied still exists physically in the machine. You had the misfortune of being able to access that memory and it had not yet been overwritten or reused for some other purpose. The worst form of undefined behavior is to do "something reasonable" or "what you expect". -- Remove del for email |
| Manfred <noname@add.invalid>: Jan 19 07:10PM +0100 On 1/19/2019 2:13 PM, Barry Schwarz wrote: > However, the memory it occupied still exists physically in the > machine. You had the misfortune of being able to access that memory > and it had not yet been overwritten or reused for some other purpose. There is a second consideration here: even if you remove the "print()" call, still the destructor gets called twice, which is obviously wrong, like e.g. in the following: #include <iostream> class X { public: X() { } ~X() { std::cout << "~X();" << std::endl; } }; int main() { X x; x.~X(); } I believe this is forbidden by the standard, but more practically it just confirms that destructor semantics is meant to be handled by the language itself. It is allowed to be called by the programmer only to allow for those cases where object deallocation is not automatically paired by object destruction, like e.g. in some vector implementation, and in those cases it is meant as a companion to placement new. |
| Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Jan 19 06:19PM On 19/01/2019 18:10, Manfred wrote: > those cases where object deallocation is not automatically paired by > object destruction, like e.g. in some vector implementation, and in those > cases it is meant as a companion to placement new. The following is legal however: int main() { X x; x.~X(); new(&x) X{}; } /Flibble -- "You won't burn in hell. But be nice anyway." – Ricky Gervais "I see Atheists are fighting and killing each other again, over who doesn't believe in any God the most. Oh, no..wait.. that never happens." – Ricky Gervais "Suppose it's all true, and you walk up to the pearly gates, and are confronted by God," Bryne asked on his show The Meaning of Life. "What will Stephen Fry say to him, her, or it?" "I'd say, bone cancer in children? What's that about?" Fry replied. "How dare you? How dare you create a world to which there is such misery that is not our fault. It's not right, it's utterly, utterly evil." "Why should I respect a capricious, mean-minded, stupid God who creates a world that is so full of injustice and pain. That's what I would say." |
| Jorgen Grahn <grahn+nntp@snipabacken.se>: Jan 19 10:37AM I'm curious how people use Google's AddressSanitizer with Clang and GCC in practice. I've toyed with it, by adding this to one of my Makefiles: CXXFLAGS+=-fsanitize=address,leak,undefined but my code didn't seem to have those flaws, apart from a leak I knew about already. I've used valgrind a lot (in its default modes) so I know fairly well what to expect from that tool. I know what errors it will flag, how much slower my code will run (sometimes too slow for use) and I know I don't have to instrument anything. - Which sanitizers do people enable, as a rule? - If you use valgrind, which sanitizers are still relevant? - When I use valgrind, a segmentation fault crash is almost always preceded by useful valgrind errors. Is the same true for ASan? - When do you use them? I suppose at least when running unit and component tests. Does anyone use them in production? - I'm unused to tools that require instrumentation. Is it a problem that the standard library and other libraries aren't instrumented? - Etc. /Jorgen -- // Jorgen Grahn <grahn@ Oo o. . . \X/ snipabacken.se> O o . |
| ram@zedat.fu-berlin.de (Stefan Ram): Jan 19 06:14AM >you'll be better off with the latest draft version: n4659.pdf n4659 2017-03-21 n4750 2018-05-07 n4762 2018-07-07 n4778 2018-10-08 |
| ram@zedat.fu-berlin.de (Stefan Ram): Jan 19 06:30AM Supersedes: <draft-20190119071318@ram.dialup.fu-berlin.de> >you'll be better off with the latest draft version: n4659.pdf date id targeting or similar to 2018-10-08 n4778 C++2a 2018-07-07 n4762 C++2a 2018-05-07 n4750 C++2a 2017-10-16 n4700 C++17 2017-03-21 n4659 C++17 2016-07-12 n4604 C++17 |
| ram@zedat.fu-berlin.de (Stefan Ram): Jan 19 10:09AM Supersedes: <draft-20190119072804@ram.dialup.fu-berlin.de> ram@zedat.fu-berlin.de (Stefan Ram) writes: >you'll be better off with the latest draft version: n4659.pdf date name revises comments (target, similarity) 2018-12-07 n4791 n4778 C++20, now with ranges * 2018-10-08 n4778 n4762 C++20 2018-07-07 n4762 n4750 C++20 2018-05-07 n4750 n4741 C++20 2018-04-02 n4741 n4727 C++20 2018-02-12 n4727 n4713 C++20 2017-11-27 n4713 n4700 C++20 2017-12 14882,5 14882,4 C++17= approved 2017-09-06 2017-10-16 n4700 n4687 C++20 2017-07-30 n4687 n4659 C++20 2017-03-21 n4660 - C++17* 2017-03-21 n4659 n4640 C++17* * ezoeryou.github.io/blog/article/2019-01-10-range-view.html |
| "Chris M. Thomasson " <ahh_f_it@crap.nothing>: Jan 18 08:18PM -0800 > Interestingly, I found an article "Can Seqlocks Get Along with Programming Language Memory Models?" by Hans-J. Boehm > http://www.hpl.hp.com/techreports/2012/HPL-2012-68.pdf > For what I could see, Boehm does not exactly consider the problem I raised here (so, his attitude and a range of discussed issues is rather different), yet it still worth reading for those interested in the topics discussed here. This discussion is very informative, real, and nice. Thanks again Michael. It brings back some memories. |
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