Re: [fpc-pascal] Function reference confuses function pointer?
On 3/3/23 22:08, Hairy Pixels via fpc-pascal wrote: This caused me a nasty debugging confusion, it’s a bug right? In the program below the two parameters passed to TBinding.Create have the same address despite being function pointers to two different class methods. Calling them both call the same method which is clearly not correct. Free Pascal Compiler version 3.3.1 [2022/09/28] for aarch64 I modified the methods in question from your example and called them. They were separate. This was already addressed. https://gitlab.com/freepascal.org/fpc/source/-/issues/39981 resolved in commit a714e2ff 3 months ago ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Function reference confuses function pointer?
On 3/3/23 22:08, Hairy Pixels via fpc-pascal wrote: This caused me a nasty debugging confusion, it’s a bug right? In the program below the two parameters passed to TBinding.Create have the same address despite being function pointers to two different class methods. Calling them both call the same method which is clearly not correct. Free Pascal Compiler version 3.3.1 [2022/09/28] for aarch64 2022/09/28? Does not do this 3.3.1 [2023/03/02] for me. I get different addresses. $ fpc same.pas Free Pascal Compiler version 3.3.1 [2023/03/02] for x86_64 Copyright (c) 1993-2023 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling same.pas same.pas(37,19) Warning: Function result does not seem to be set Linking same 52 lines compiled, 0.2 sec, 144256 bytes code, 57848 bytes data 1 warning(s) issued $ ./same 7FA3B433A080 7FA3B433A078 ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Duplicate identifier "$result"
On 2/24/23 22:37, Hairy Pixels via fpc-pascal wrote: I’m trying to build a project on Windows and I’m getting the error mentioned in the subject. It appears to be from a nested function in a generic class which is using the “result” keyword to assign the value. Is this a bug or do I need to enable some extra compiler flag on Windows? It is a bug. (as far as I can tell) https://gitlab.com/freepascal.org/fpc/source/-/issues/40104 Here’s the compiler I’m using. Free Pascal Compiler version 3.3.1 [2023/02/24] for i386 From that report: Operating system: Linux, AlmaLinux 9.1, X86_64 Processor architecture: X86_64, 64 bit Compiler version: 3.3.1-12327-gb997e413 Device: Computer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Programming Pascal using an AI Chatbot
On 1/3/23 11:17, Anthony Walter via fpc-pascal wrote: In summary, while OpenGPT is obviously imperfect, generally it feels like a revolutionary leap forward of several magnitudes. It ought to be plainly clear that the proverbial toothpaste is now out of the tube and there is no going back. These types of artificial intelligence (AI) are only going to become more refined, accurate, and prevalent. The idea many scholars or businesses have expressed to somehow restrain them is beyond myopic. Instead, everyone should familiarize themselves with this new category of AIs right now, their limitations (as you have expressed), their benefits, and most importantly how they can be molded in further revisions to be better rather than relegated. Agreed. I see OpenAI ChatGPT a tip of the iceberg sampling of what is to come. In the way it is currently, though rather crippled in many areas, it is still revolutionary and extremely useful. But one must understand it's limitations. It guesses a lot and that is usually good, but it still often gets things wrong. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Programming Pascal using an AI Chatbot
Pascal is still limited with OpenAI ChatGPT unless you stick to very core things in Pascal, and are patient to teach it about non-core things. Limited compared Python and other languages. Asking it to do specific things Python using standard modules give better results C++ with something like Qt6. Free Pascal is even more limited than C++ as far as what OpenAI ChatGPT can provide. OpenAI ChatGPT is still very useful for Free Pascal though. On 1/2/23 15:05, Dwight Schauer wrote: I started a new chat and conducted a mock interview of it for a hypothetical programmer position. I had to give it the same benefit of the doubt I would give to humans on some answers as far as follow up questions to get the answer I was looking for. In just about every area it gave more comprehensive answers than any human could. And gave satisfactory correct answers in every other area. Discussed a variety of issues, low/medium/high level stuff, theoretical, hypothetical, troubleshooting, pros/cons of one approach over another, workplace scenarios, email/IT scams, etc... It matched or out performed a human on just about everything. Well, except for "what are your hobbies..." But it was able to comprehensively answer all non computer related hobby question I threw at it. But it an illusion. While it may "sound impressive" if you try to test if it has deep cognitive abilities knowing it was a limited AI, it would fail, and fail miserably. But in an interview with a person, if they answered all those questions in the way that way, you would not really think to test their cognitive abilities to that extreme. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Programming Pascal using an AI Chatbot
I've been played with OpenAI ChatGPT some. I had it write a few Pascal programs and refactor them into multiple units per my specifications. I did the same with other programming languages, then asked It to rewrite what I'd done with those in Pascal or one of the others. Including doing them same things in assembly code for x86_64 Linux. It tried to send two strings arguments using the Linux write syscall, the second argument being specified in a string template of the first argument. I had to explain it could not do that, so it dropped the %s from the first string and did a second write for the second string argument. Not perfect results each time, but I quickly was able to able to close the loop with it to correct things and produce code that ran. On one C++ example I got a linker error, and it gave me the correct command line option much faster than a google search and digging through the results would have taken me. I was able to tell it to write some a simple GUI program in C++ using qt6. Graph two cycles of a sine wave, move a rotating circle back and force along the course of the sine wave. It took several iterations of me correcting it with suggestions and hints, and it finally got it working. I played stupid on a lot of things, telling it what distro I was on, what commands needed to install certain things. It have me detailed steps on everything. I asked about one C library, dwindows, and it knew nothing about it. I gave the chat bot the website for dwindows and it was then able to answer questions about it. I asked it for some sample code on such and such using it, and it gave it too. I asked for specific modifications that would not have been in an example for dwindows, and it was able to make the changes, which at some level shows it was parsing the documentation for the API. I started a new chat and conducted a mock interview of it for a hypothetical programmer position. I had to give it the same benefit of the doubt I would give to humans on some answers as far as follow up questions to get the answer I was looking for. In just about every area it gave more comprehensive answers than any human could. And gave satisfactory correct answers in every other area. Discussed a variety of issues, low/medium/high level stuff, theoretical, hypothetical, troubleshooting, pros/cons of one approach over another, workplace scenarios, email/IT scams, etc... It matched or out performed a human on just about everything. Well, except for "what are your hobbies..." But it was able to comprehensively answer all non computer related hobby question I threw at it. But back to Pascal, first results did not always work, I'd need to suggest alternatives. Most of the time existing units sufficed, but in other places I'd tell it to resort to libc calls, or inline assembly, and it would eventually produce working code. With a bit more coercing I could have likely gotten existing units to work in those scenarios. Main problem I ran into is things need to be small. If the code in question was too big, it would break it up and I'd need to ask for continue, and it did not always splice the continuations correctly. The incorrect answers did not bother me, as I was for the most part able to work with it to correct things. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Working on a new way to educate people about pascal
On 12/29/22 09:53, Adriaan van Os via fpc-pascal wrote: Modern mathematics education tries to teach by showing graphs and pictures, instead of formulas and proofs. But, by doing so, it misses the most important point — that mathematics is about abstract thinking. You will never get around the point that it is the abstract thinking that must be taught. The latter (formulas and proofs in mathematics) is what gave me a head start in programming in high school before I had an formal computer science classes (programming or otherwise). After just a few hours playing with Basic I was like hmm... I already was taught most of this stuff, this is a way to apply it... I had liked doing all the proofs in High School geometry. I just had not seen a practical value in them. When I was learning to program I was like wow, this is what all the stuff was for. So most of my first self taught stuff was related to geometry, but primarily algebra and trigonometry. But the latter two did not lay the computer programming foundation for me like geometry did. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Working on a new way to educate people about pascal
On 12/28/22 06:01, Hairy Pixels via fpc-pascal wrote: On Dec 28, 2022, at 4:45 PM, wkitty42--- via fpc-pascal wrote: like james, i also have like 40-45 years programming experience... 99% of my stuff is still text mode tools and apps... GUI stuff has just never made sense to me... Just curious, how so? GUI is usually the easiest parts of programming but these days using Pascal there aren’t many options. Should be easy to pick up some tutorials even if it’s another language with a good framework for what ever platform you use. If you have a top-down view then GUIs have the illusion of being easy, because you are blissfully ignorant of their complexity. With that blissful ignorance one is forced to master event based programming model, which among other things in GUI programming is a fairly advanced topic. If you have a bottom-up view, then you understand that GUIs are extremely complex. They are anything but "simple". If you understand interrupts and real time embedded systems, then you will grasp event-based base programming with a far deeper understand then the beginner programmer. I've done a lot of GUI work in the distant past and web-ui work in the not so distant past, but before that learned bottom up. Web-UI's are far from being simple, they are even more complex than a native GUI app, and are an even higher layer on top of even more complex software. To write good Web-UIs, once again, among other things, event-based programming... So starting out with GUIs and Web-UIs beginners is forcing them deal with very advanced concepts right away. Yes, there is the visual appeal, but it is an illusion in my opinion. Like wkitty42, I've been programming for a while, only 30 to 35 years though, since the mid 80s, more so since the early 90s. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC coding standards
On Wed, 2020-08-19 at 02:03 +0200, Michael Van Canneyt wrote: > > On Tue, 18 Aug 2020, Dwight Schauer via fpc-pascal wrote: > As long as the code only gets alterned into something logically > > equivalaent, and as long as I can retreive the contents of comments > > formatted as they were originally, I'm not concerned. (Other than > > enforcing so many so many spaces after something like // and before > > it, > > lining up // on adjacent lines in a configurable manner, etc.) > > You cannot easily do this with the current fcl-passrc. In fact, I > would > not recommend it. > > The comments are not kept and do not appear in the AST built by the > parser. > There is a way to keep the comments, but all info as to where they > should be > inserted is lost. There are ways to solve this, but you will never be > able > to insert all comments again; only some constructs can be recognized > and > reproduced. > > A second problem is that if you use IFDEFS, you will only see the > part of > your code that corresponds to the conditional branches taken in the > code. > > If you are concerned with reformatting only, then ptop is the better > way to go. > It just cares about tokens, and will process all branches of > conditional > code. Thank you! This is why I asked on on this email list. ptop it will need to be then... I'm not sure if I can get function/procedure modifiers to work without source code changes (to ptop), but I'll find out... It seems like most everything else works with config tweaks, but I'll need to verify that. Once again, thanks. Sincerely, Dwight Schauer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC coding standards
On Tue, 2020-08-18 at 23:17 +0200, Marco van de Voort via fpc-pascal wrote: > Op 2020-08-18 om 23:01 schreef Sven Barth via fpc-pascal: > > Might be the even better solution as fcl-passrc will be better > > maintained due to it being used for both the documentation utility > > fpdoc as well as pas2js. > > > Parsers for compilers or source transformation usually discard > whitespace asap, while editor and formatting parsers don't. Usually > they > are different beasts. The only signifiicant whitespace I'm concerned about is that found in string literals and in comments. Other whitespace or manual formatting does not really apply to any strict standard style conformance. I'm not looking for something that honors personal tweaking here and there. As far as whitespace in literal strings, I'm sure those don't get mangled for pas2js (other than maybe the escaped characters changing, but the transformed string is still going to be an equivalent one). Now I've seen formatters for other languages, Go for instance, that sort imports and removes ones that are not referenced. I'm not looking to set up something that invasive. I just want something that I have a few sets of configs that I'm able to tweak make the code adhere to different standards or formatting style. And have one for the style I prefer, but if I need something to be in someone else's style, no problem. (Which I can currently do with clang- tidy). clang-tidy in my experience for C/C++ seems to throw away all your whitespace, and reformat according the standard you have chose (which you can tweak). With some exception though as far "all whitespace". As long as the code only gets alterned into something logically equivalaent, and as long as I can retreive the contents of comments formatted as they were originally, I'm not concerned. (Other than enforcing so many so many spaces after something like // and before it, lining up // on adjacent lines in a configurable manner, etc.) Sincerely, Dwight ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC coding standards
On Tue, 2020-08-18 at 14:11 +0200, Sven Barth wrote: > Not that I know. Most formatters will barf on some of the syntax > extensions that FPC provides (see the Jedi Code Formatter that barfs > on generic syntax). Even ptop might fail on newer language > extensions... > > So improving ptop might indeed be the way to go if you want that. Thanks. I see what I can do with ptop config and if need be see what it will take to improve ptop. Or investigate starting over with pparser, pastree, paswrite, as I'm already looking at those for some other things. https://wiki.lazarus.freepascal.org/fcl-passrc Sincerely, Dwight Schauer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC coding standards
On Tue, 2020-08-18 at 11:08 +0200, Sven Barth via fpc-pascal wrote: > ... > There is no default configuration, because there is not one default > standard. ... Understood. > Rule of thumb is that contributions should fit into the existing > style. In general when it comes to programming it is better to let programmers focus on content, not style (especially when there is supposed to only be one style in a given source file). One could argue that lack of standardization (and tools to enforce thos standards) cause programmers to do menial tasks that computers can do much better at I guess I will need to make my own configs for ptop if I don't want to be forced to manually focus on style... It seems ptop does not understand function/procedure modifiers. https://www.freepascal.org/docs-html/ref/refsu3.html Maybe it does support/understand those, I'll just need to dig through the configs, as theire is mention of "modifier" or "modifiers" in the default config output. Of hand I don't see a "nocrbefore", but I see functions have a type as the last item, but no modifiers... The default config for ptop does not understand asm, but there is blank entry for it, and I see that giving it the same rules as begin works fine. Is there a more robust code reformatter (command line / batch oriented) that can used with free pascal? (before I start digging in to making ptop work to remove one's focus from style and put it solely on content?) Sincerely, Dwight Schauer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
[fpc-pascal] FPC coding standards
Hello FPC Pascal users, Is there a default ptop.cfg somewhere that follows the FPC coding standards? https://wiki.freepascal.org/Coding_style I'm not looking to submit any PR in the near future, I just want to be able to automatically reformat my code to conform to what I consider a reasonable standard, rather than having to enforce that manually. Or config for any other invoked from the command line reformatting tool. I don't use IDEs in my regular development work flow (so if Lazarus has this feature, and it can't be invoked from the command line, it won't help me). The default config generated by ptop definitely does not conform to the standards... I guess I could write my own ptop.cfg for this... But it seems like with "Some people might think that the coding style used in the FPC compiler and base RTL (run-time library) source code is a little bit strange. But it has been in use for a lot of years and is not subject to discussion. So take the following as a standard to be used." that there should be tool configuration that can do that automatically. With C/C++ even if I'm just working on my own stuff (not in a team), I can use tools like indent or clang-tidy. I know, FPC is not C/C++, but is still nice to be able to have some tool enforce a consistent style regardless what language I'm using. Sincerely, Dwight Schauer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
