Re: DConf 2019 Livestream
On Wednesday, 8 May 2019 at 08:04:08 UTC, Mike Parker wrote: On Wednesday, 8 May 2019 at 08:00:15 UTC, Andrej Mitrovic wrote: On Wednesday, 8 May 2019 at 07:57:40 UTC, Mike Parker wrote: The venue uses WebEx for livestreaming. All the information is available in this PDF: https://drive.google.com/open?id=1yekllbfOmxHqJNuuWIVeP9vNeROmfp1I "When joining: Please connect using Internet Explorer, not Google Chrome or another web browser." You guys can't be serious, you're using WebEx? Not us. The venue. Sorry about that. It was supposed to be streaming to YouTube, but it fell through the cracks. We are looking into it now. Laeeth
my first kernel in betterC D
https://github.com/kaleidicforks/mkernel-d I spent a few minutes on just turning the C code to betterC D - was curious to see if it would work. It seems to. I didn't try loading with GRUB. The dub.sdl isn't quite right, so best run ./build.sh Cannot push to code.dlang.org - it complains about registering a forked package, even after renaming.
Re: my first kernel in betterC D
On Wednesday, 19 June 2019 at 13:45:45 UTC, matheus wrote: On Sunday, 16 June 2019 at 16:14:26 UTC, Laeeth Isharc wrote: ... Nice indeed, maybe you should mention this on reddit? Matheus. Feel free to. But I didn't do any work - I changed a few lines in the C code and of course it just worked. So I would feel embarrassed posting to Reddit because the original author did the hard bit and I just made trivial changes. You know I think Atila is right about social factors and integration being everything. The objections to using D are just that - it's not really about what people say mostly, but those are excuses to rationalize how they feel. One aspect of that is just showing something is possible. Adam Ruppe's talk at dconf a while back has had a lasting influence on how we approach things, mostly for giving me permission to do what I'm naturally inclined to do anyway. If you're not sure then bet a little time to try - the worst thing that can happen in user code is a segfault and so what. For example our business is not primarily about network programming at a lowish level. But when people say file transfers to Asia are slow because of the speed of light and latency one doesn't need to accept that. It's quite a similar problem - latency and packet loss - to the days of 300 baud models and XModem and there's an obvious solution. But before doing it myself I figured someone must have solved it and I found UDT. I spent half a Saturday wrapping it so it built but wouldn't work and Robert Schadek finished the job in a day or two. What's a decent performance improvement these days? Well I'm pretty happy with a 300 times (not 300%) improvement in file transfer speed between regions! And we can pull that plus libzfs in D plus our little language to have a tool for managing zfs snapshots and replication that makes everything simple because it's coherently designed and integrated. Anyway I think sometimes a barrier to adoption is sometimes just nobody has yet shown the problem is easily solved using D in your domain. We are in an age that's short on daring and ambition, which means a little bit of courage goes a long way. Nobody could break the four minute mile. One guy did it and then lots of people followed. Most people closest to using D that aren't I guess will have a decent size C or C++ code base. DPP keeps getting better in relation to C++ and we want to get it to a stage where it can be used to expose an internal library that's still got a C++ interface but is being replaced step by step with D. Thanks, Daniel Murphy for showing the way there, though we aren't able to do the translation programmatically. DPP has paid for the modest support we provided many times over already even just considering direct benefits. I wonder a bit about translation from C. Rust 2C was a multi million DoD project. We could steal the front end that dumps out the libclang C AST as CBOR. I suppose it shouldn't be hard to translate that to C-style D programmatically. It "adds nothing" to libclang in theory but it saves a lot of time as libclang is not the most complete or pleasant API I have seen. If we had something dependable it would be much easier to move a C codebase incrementally to D because you could just do what you can manage at that time and you don't need that much imagination or courage because it doesn't end up being a big binary bet. I guess translating C++ programmatically is a much harder, maybe almost impossible problem. But C would be a start. I have my hands full right now but I would play with doing it myself if I had more time... Laeeth
Re: Autonomous driving company is looking for D software engineers
On Tuesday, 18 June 2019 at 19:05:05 UTC, Dragos Carp wrote: AID GmbH (https://aid-driving.eu) a subsidiary of AUDI AG is looking for experienced D-evelopers in Munich. If you want to employ your D expertise and be part of the autonomous driving revolution, apply under: https://jobs.lever.co/aid-driving/c4b243bd-c106-47ae-9aec-e34d5bbe0ce1?lever-via=vcPRnEaCR3 Nice work. Could somebody perhaps check with AID and if it's okay add their name to the list of companies using D.
Re: Autonomous driving company is looking for D software engineers
On Sunday, 23 June 2019 at 12:22:18 UTC, XavierAP wrote: On Tuesday, 18 June 2019 at 19:05:05 UTC, Dragos Carp wrote: AID GmbH (https://aid-driving.eu) a subsidiary of AUDI AG is looking for experienced D-evelopers in Munich. If you want to employ your D expertise and be part of the autonomous driving revolution, apply under: https://jobs.lever.co/aid-driving/c4b243bd-c106-47ae-9aec-e34d5bbe0ce1?lever-via=vcPRnEaCR3 Thank you very much for sharing. You work at AID? As Laeeth says, could you let us know whether it would be ok to add a mention to AID to the Dlang website? https://dlang.org/orgs-using-d.html https://www.reddit.com/r/programming/comments/c4f1hu/dlang_being_used_for_autonomous_driving_research?sort=confidence
PoC: Runtime Reflection in D on C++ code
It's rough and ready - no proper build and not at all well-tested. But it will definitely work in time since it uses the fork of libcling for cppyy that's used at scale for CERN. cppyy generates python bindings for C++ code on the fly using the cling interpreter (it handles templates by doing the specialisation at python runtime). I'm a bit short of time, so putting this out here in case it's useful for anyone - might be some months before I get to look at it again. https://github.com/kaleidicassociates/cpp-reflect-d ROOT: https://github.com/root-project/root https://cppyy.readthedocs.io/en/latest/ http://wlav.web.cern.ch/wlav/Cppyy_LavrijsenDutta_PyHPC16.pdf
Re: Five Projects Selected for SAOC 2019
On Tuesday, 27 August 2019 at 17:32:30 UTC, Max Haughton wrote: On Monday, 26 August 2019 at 18:51:54 UTC, Vladimir Panteleev wrote: On Sunday, 25 August 2019 at 13:38:24 UTC, Mike Parker wrote: The Symmetry Autumn of Code 2019 application selection process has come to an end. This year, we've got five projects instead of three. Congratulations to everyone who was selected! You can read about them and their projects over at the D Blog: https://dlang.org/blog/2019/08/25/saoc-2019-projects-and-participants/ Sorry, I haven't been following. Don't we already have an implementation of the "Create a CI or other infrastructure for measuring D’s progress and performance" project? I just haven't been maintaining it because there hasn't been a lot of interest in it while it was being maintained. Here's the original blog post: https://blog.thecybershadow.net/2015/05/05/is-d-slim-yet/ I'll give it a kick and get it back online if there is interest. Seems wasteful to reimplement it from scratch, though. I was aware of the site when i wrote the proposal, but the idea is to create the infrastructure to add more measurements too, e.g. profiling the compiler or testing it under limited memory (I found out how much memory my CTFE thing was using the other day!). Assuming I can get it to work I'd also like to throw the Linux perf system in there too, Take a look at BPF. Might be some work to wrap and if I recall right some of the C headers are a bit gnarly. But it's pretty powerful. https://github.com/brendangregg/bpf-docs
Re: LDC 1.18.0
On Wednesday, 23 October 2019 at 02:22:56 UTC, zoujiaqing wrote: On Thursday, 17 October 2019 at 04:04:41 UTC, Newbie2019 wrote: On Wednesday, 16 October 2019 at 22:31:41 UTC, kinke wrote: Thanks for keep up the good work. Android CI is really a great for mobile users, I wish some day there also include IOS cross build binary package. Yes, I wish it too. LDC for iOS needed. We use iOS. If somebody were willing to do the work of bringing LDC up to date and maintaining it maybe we could support the work, or at least contribute to it.
Re: Article about D in the iX magazine
On Sunday, 22 December 2019 at 13:05:02 UTC, Robert M. Münch wrote: On 2019-12-20 21:26:00 +, Andre Pany said: In the new iX (1 Januar 2020) there is also a Leserbrief for the article;) Even there are only few comments, every comment helps. It's very hard to convince programmers to give something else a try and stay to it long enough to see the light. Most of the time, evangelizing is very frustrating. The better strategy from my experience is: Deliver a cool product and than tell everyone "we are 10 times more productive than our competitors while delivering a better product." You can be sure, everyone wants to know how you do it. I think it's much better to spend most time on those receptive to it anyway, which is a very small proportion of the programmers many people might know in real life. The beauty of being the challenger is you can keep growing by persuading only a small proportion of people who were already poised on the edge or would be if they knew of D. Yes - I agree that delivering value speaks the loudest. But of course in a competitive market it's not necessarily going to be something people discuss. It's outside the reality of many others, what can be achieved with D, and at the same time you don't necessarily want to actually make it vivid to your competitors how they could do what you did. I think also that enthusiasm and working code might be more effective than logic and feature comparison. The biggest asset the D community has might be the calibre of people that are drawn to it and that stick with it...
Re: My Android project nearing beta
On Monday, 6 January 2020 at 14:37:54 UTC, Adam D. Ruppe wrote: On Sunday, 5 January 2020 at 03:56:37 UTC, visitor wrote: Not a single line of java! so i got kinda excited for creating a class 100% in D as well, but. https://developer.android.com/training/articles/perf-jni.html "DefineClass is not implemented. Android does not use Java bytecodes or class files, so passing in binary class data doesn't work." I haven't tried, but: https://github.com/linkedin/dexmaker
Re: FeedSpot Recognizes the GtkDcoding Blog
On Friday, 7 February 2020 at 16:00:07 UTC, bachmeier wrote: On Friday, 7 February 2020 at 15:05:13 UTC, Russel Winder wrote: True companies have convinced themselves that only licences that allow stealing of others' intellectual work are acceptable to business, but then that is the point, they can steal the intellectual work with impugnity. A rant of my own: The push against the GPL is mostly by those who want free software to mean "free labor". GPL software can be dual licensed. Companies can pay for an alternative licensing arrangement if it's that valuable to them. Instead they want "free" software that allows them to avoid payment while imposing restrictions on how others use the software. How do you pay for an alternative licensing arrangement when there are a gazillion contributors some of whom are untraceable and when in practical terms any one of those saying no might make it in practical terms impossible? Software can be dual licensed, but it often isn't, particularly with community developed software. Most software is internal software I think. But a company needs to make decisions strategically in the face of uncertainty. Suppose you are considering a library for internal use and not planning to redistribute. But business is uncertain. Maybe it could be you want to redistribute your software to a future partner. Now if you use a viral license library that doesn't give you an option to pay for it then you are shutting off that option.
Talk before Compiler Research Group at IRIS-HEP Princeton on SIL-cling
https://youtu.be/7teqrCNzrD8 https://t.co/2iAWdO9cXA Alexandru Militaru speaks to Compiler Research Group, IRIS-HEP at Princeton about his work at @SymmetryInvest using CERN's cling to compile and call C++ from our internal domain specific language, SIL. #dlang #cling
Semi - OT: LLVM blog on calling most of C++ from a DSL written in D
https://blog.llvm.org/posts/2021-03-25-cling-beyond-just-interpreting-cpp/
New beginnings - looking for part-time D programming help
Hi. For those that didn't hear, I resigned from Symmetry in September and my last day was a couple of weeks back. I don't have any concrete plans yet, but I've agreed not to do anything in the hedge fund world for quite some time and I've also agreed not to hire anyone that's an employee or consultant for Symmetry. Out of little acorns do great oaks grow and the best beginnings are often not much, just a little hobby project. I sat down in early 2014 and wrote down what I called hedge fund in a box - what are the things I am going to need to build so I never have to worry about them again. Not always quite in that form, but it's remarkable how many of those little beginnings ended up coming to fruition in what was an 11bn hedge fund by the time I left. With that said for now I don't have much, just a few ideas about how to solve some of my own problems, knowing there's just a chance they might be useful down the line to others. I'm paying out of my own pocket and my budget is modest for now so this isn't going to be an opportunity interesting for someone currently embedded in big tech ! You can speak to some of the people I hired at Symmetry - if this ever becomes anything then I will pay well to very well over time. But you shouldn't bet on it becoming anything at all. If you do good work but nothing comes of it and you're interested in getting a job in finance I can help you navigate that world and the experience may help you achieve your goals. But I am not sure I would recommend most jobs in finance. What kind of work? Initially some scripting in D to integrate things and a little bit of work with LLM embeddings and fine tuning, STT transcription, classifiers, parsing. Some presentation work - gui or web I don't mind. What kind of person? You need to be a talented hacker that's interested in learning and accomplishing things. You don't need an impressive CV - my best documentation Dev hire was a Spanish baker with no enterprise experience. (Just the kernel, lol). What's the vision? Well I will say more when I can but how people do work today in organisations is broken and it's miserable and I would like to play a part in transforming that. Full remote is ideal as I live on an island. If you happen to live near Rennes, Saint Malo or Amsterdam then it's easier for me to visit you. Let me know any questions. laeeth+reboot at laeeth.com
porting nanomsg bindings to dlang
Hi. Everyone has heard of ZeroMQ, but the creator (or one of the main guys) has been working on a successor framework written in C. (He has an interesting paper on why using C++ was a mistake - perhaps we should get him to look at D if he has not done so already). In any case, I could not see a set of D bindings so I wrote a very rough first draft of them last night. I only picked up D a couple of months back, and it's been about twenty years since I wrote much C (I am not a developer by trade), so be kind if the results are not yet quite up to scratch. Link to the repository is here - not even worthy of alpha status: https://github.com/Laeeth/d-nanomsg/tree/master So far I have tried the first example from here (which works), and am working my way down to test the others: http://tim.dysinger.net/posts/2013-09-16-getting-started-with-nanomsg.html
porting nanomsg bindings to dlang
examples here all work: https://github.com/dysinger/nanomsg-examples/blob/master/README.org but I have not tried any larger projects.
Re: porting nanomsg bindings to dlang
Thanks. I am slowly getting to grips with all these post-stone age innovations... On Wednesday, 5 November 2014 at 20:24:41 UTC, Matt Soucy wrote: On 11/05/2014 01:12 PM, Laeeth Isharc wrote: Hi. Everyone has heard of ZeroMQ, but the creator (or one of the main guys) has been working on a successor framework written in C. (He has an interesting paper on why using C++ was a mistake - perhaps we should get him to look at D if he has not done so already). In any case, I could not see a set of D bindings so I wrote a very rough first draft of them last night. I only picked up D a couple of months back, and it's been about twenty years since I wrote much C (I am not a developer by trade), so be kind if the results are not yet quite up to scratch. Link to the repository is here - not even worthy of alpha status: https://github.com/Laeeth/d-nanomsg/tree/master So far I have tried the first example from here (which works), and am working my way down to test the others: http://tim.dysinger.net/posts/2013-09-16-getting-started-with-nanomsg.html A few small suggestions: Use a .gitignore so you're not tracking the objects and executables Convert to a dub package to make it easier for other people to incorporate into their projects Split out the "test" code from the "library" code
Project to port Bloomberg API to D
About Bloomberg -- Bloomberg provides a platform for market data, news, analytics, and messaging to financial services firms and other organisations with an interest in markets. There are some interesting developments on the horizon but, for the time being, for investment banks and hedge funds it remains the standard platform for such. Their API is public, and they provide implementations for C++, C, Python, Java, and .Net amongst others. Interesting for D? -- The financial services space might be an interesting domain for D because it's an economically important area where performance, safety and productivity all matter, and none of the existing solutions (mostly C, C++, Java, Python) are particularly satisfactory. At the same time, people in finance do not tend to be in the business of taking big technology risks with a product not yet widely seen as industry standard because the costs of messing up may be especially high (and messing up for creative reasons is much less acceptable than if you follow the herd). Perhaps in the face of new emerging realities regarding data set sizes, memory speed, and single core processing power that creates opportunity for more entrepreneurial participants to use the best tool for the job. I certainly hope so. People often want to see results quickly, so even if it's not really much work to do the port, there might be a big difference in the chance someone might consider trying (and then learning to appreciate) D. Beyond a mature numpy/pandas equivalent, the other missing piece is an analytical library for derivative pricing and risk management. QuantLib is the main open source project - it is written in C++ but has D SWIG wrappers. (There is the Java Opengamma too, but I am not so familiar with it). SWIG is not great though, and I don't think the wrappers cover all the functionality. (There was a project to port QuantLib to D but I am not sure it ever got started, and it is now defunct). It is super appealing to be able to rapidly prototype and explore ideas about largeish data sets and have the results be fast, knowing also that the code one has written can serve as the basis for something used in production (thanks to strong typing, elegant language design, etc). So I think there is a chance for D to take off within finance for some uses. Project status -- So for my own purposes - but I hope they might benefit others - I have ported the C headers and C examples to D. It's pre-alpha status - everything compiles, but I need to start up a Windows machine with Bloomberg to get it linking and get any bugs out of the port. I thought of holding back posting till they were perfect, but decided to just post what I have in case anyone else should have an interest. It may be that the C++ headers create a more appealing interface, but I do not know the current status of C++ vs D interface as the dlang.org docs are stale. For the time being the examples are just an ugly direct translation, with lots of casts and not much attention paid to beauty and elegance. But it's something, and a start. Link https://github.com/Laeeth/d-bloombergapi Laeeth.
Quandl API ported to D
Embarassingly trivial, and I don't claim it is well-written. But perhaps it will save somebody a few minutes. Quandl is "The largest, most usable collection of free open data in the world". They offer a bunch of predominantly financial and economic data from different sources for free (with a pretty generous API allowance) and plan to earn a buck down the line selling commercial data and being a platform for distribution. Given the situation with Bloomberg (the banks are not terribly happy following the JPM whale/Bloomberg journalism revelations) and structural change in the market for data, this is an intriguing platform. In any case, I ported the sample C++ API to D, which was more a question of deleting redundant lines and using std.net.curl then anything else. Perhaps someone will find it useful. https://github.com/Laeeth/d-quandl Laeeth.
Re: Quandl API ported to D
On Thursday, 11 December 2014 at 10:26:47 UTC, Gary Willoughby wrote: On Thursday, 11 December 2014 at 01:25:32 UTC, Laeeth Isharc wrote: Embarassingly trivial, and I don't claim it is well-written. But perhaps it will save somebody a few minutes. Quandl is "The largest, most usable collection of free open data in the world". They offer a bunch of predominantly financial and economic data from different sources for free (with a pretty generous API allowance) and plan to earn a buck down the line selling commercial data and being a platform for distribution. Given the situation with Bloomberg (the banks are not terribly happy following the JPM whale/Bloomberg journalism revelations) and structural change in the market for data, this is an intriguing platform. In any case, I ported the sample C++ API to D, which was more a question of deleting redundant lines and using std.net.curl then anything else. Perhaps someone will find it useful. https://github.com/Laeeth/d-quandl Laeeth. Interesting. Why not also add it to the dub registry? http://code.dlang.org/ You can find more information here: http://code.dlang.org/about and more about the package format here: http://code.dlang.org/package-format Thanks for the suggestion. I hope to do so when a bit more time (I am still not yet that comfortable with dub myself). Laeeth.
HDF5 bindings for D
https://github.com/Laeeth/d_hdf5 HDF5 is a very valuable tool for those working with large data sets. From HDF5group.org HDF5 is a unique technology suite that makes possible the management of extremely large and complex data collections. The HDF5 technology suite includes: * A versatile data model that can represent very complex data objects and a wide variety of metadata. * A completely portable file format with no limit on the number or size of data objects in the collection. * A software library that runs on a range of computational platforms, from laptops to massively parallel systems, and implements a high-level API with C, C++, Fortran 90, and Java interfaces. * A rich set of integrated performance features that allow for access time and storage space optimizations. * Tools and applications for managing, manipulating, viewing, and analyzing the data in the collection. * The HDF5 data model, file format, API, library, and tools are open and distributed without charge. From h5py.org: [HDF5] lets you store huge amounts of numerical data, and easily manipulate that data from NumPy. For example, you can slice into multi-terabyte datasets stored on disk, as if they were real NumPy arrays. Thousands of datasets can be stored in a single file, categorized and tagged however you want. H5py uses straightforward NumPy and Python metaphors, like dictionary and NumPy array syntax. For example, you can iterate over datasets in a file, or check out the .shape or .dtype attributes of datasets. You don't need to know anything special about HDF5 to get started. In addition to the easy-to-use high level interface, h5py rests on a object-oriented Cython wrapping of the HDF5 C API. Almost anything you can do from C in HDF5, you can do from h5py. Best of all, the files you create are in a widely-used standard binary format, which you can exchange with other people, including those who use programs like IDL and MATLAB. === As far as I know there has not really been a complete set of HDF5 bindings for D yet. Bindings should have three levels: 1. pure C API declaration 2. 'nice' D wrapper around C API (eg that knows about strings, not just char*) 3. idiomatic D interface that uses CTFE/templates I borrowed Stefan Frijter's work on (1) above to get started. I cannot keep track of things when split over too many source files, so I put everything in one file - hdf5.d. Have implemented a basic version of 2. Includes throwOnError rather than forcing checking status C style, but the exception code is not very good/complete (time + lack of experience with D exceptions). (3) will have to come later. It's more or less complete, and the examples I have translated so far mostly work. But still a work in progress. Any help/suggestions appreciated. [I am doing this for myself, so project is not as pretty as I would like in an ideal world]. https://github.com/Laeeth/d_hdf5
Re: HDF5 bindings for D
On Monday, 22 December 2014 at 05:04:10 UTC, Rikki Cattermole wrote: You seem to be missing your dub file. Would be rather hard to get it onto dub repository without it ;) Oh and keep the bindings separate from wrappers in terms of subpackages. Thanks - added now. Will work on separating out bindings when have a bit more time, but it should be easy enough.
Swiss Ephemeris / Nelder-Mead simplex
Last one for a while, I think. I wish you all a very peaceful Christmas and New Year, and let's hope 2015 brings some more positive energy to the world. Links here: https://github.com/Laeeth/d_simplex https://github.com/Laeeth/d_swisseph 1. D bindings/wrappers for the swiss ephemeris http://www.astro.com/swisseph/swephinfo_e.htm "The SWISS EPHEMERIS is the high precision ephemeris developed by Astrodienst, largely based upon the DExxx ephemerides from NASA's JPL . The original release in 1997 was based on the DE405/406 ephemeris. Since release 2.00 in February 2014, it is based on the DE431 ephemeris released by JPL in September 2013". NB - Swiss Ephemeris is not free for commercial use. 2. D port of simple Nelder-Mead simplex minimisation (written by Michael F. Hutt in original C version) here. With constraints. From Wiki: https://en.wikipedia.org/wiki/Nelder-Mead_method "The Nelder–Mead method or downhill simplex method or amoeba method is a commonly used nonlinear optimization technique, which is a well-defined numerical method for problems for which derivatives may not be known. However, the Nelder–Mead technique is a heuristic search method that can converge to non-stationary points[1] on problems that can be solved by alternative methods". Links here: https://github.com/Laeeth/d_simplex https://github.com/Laeeth/d_swisseph
Re: Swiss Ephemeris / Nelder-Mead simplex
On Monday, 22 December 2014 at 21:39:08 UTC, Marc Schütz wrote: On Monday, 22 December 2014 at 20:46:23 UTC, bachmeier wrote: It's been ages since I read the paper, but there is a parallel version of Nelder-Mead that is supposed to give very large performance improvements, even when used on a single processor: http://www.cs.ucsb.edu/~kyleklein/publications/neldermead.pdf It is not difficult to implement. I may look into modifying your code to implement it when I get some time. It will certainly also be advantageous to pass the functions as aliases, so that they can get inlined. Thanks, Marc. I appreciate the pointer, and if you do have time to look at the code. I confess that it can't really be called my own implementation as I simply ported it to D. There is some more clever stuff within quantlib (c++ project), but I quite liked the idea of starting with this one as it is simple, and speed is not yet vital at this stage. Laeeth.
Re: D is one if Wired's 10 Most Hardcore Tech Stories of 2014
On Saturday, 27 December 2014 at 11:15:11 UTC, Walter Bright wrote: On 12/26/2014 10:25 PM, Walter Bright wrote: http://www.wired.com/2014/12/wired-enterprise-year/ https://www.reddit.com/r/programming/comments/2qioj8/dlang_story_makes_wireds_10_most_hardcore_tech/ Congratulations, Walter. It's very satifying to see emerging mainstream recognition of something so solid and whose advantages are based in real advantages rather than marketing hype. I am personally very glad you decided on 'retirement' that you were not after all the daytime TV kind of guy, and I wanted to thank you for everything you have contributed to D and its users. I wish you a great start to the new year. Laeeth.
d_etpan: project to write bindings and wrappers for the libetpan email / IMAP library
https://github.com/Laeeth/d_etpan http://www.etpan.org/libetpan.html https://github.com/dinhviethoa/libetpan LibEtPan The purpose of this mail library is to provide a portable, efficient framework for different kinds of mail access: IMAP, SMTP, POP and NNTP. It provides an API for C language. Who uses LibEtPan? Almost all email app in Mac and iOS AppStore: see Mailcore Cisco Mobile for iPhone Claws Mail Filemaker Pro Google Apps Migration for Microsoft Exchange Playstation Vita Email Application reMail (Acquired by Google in 2010) Sparrow (Acquired by Google in 2012) Status == Pre-alpha bindings only. They compile without errors, but probably need some fixes and some key functions missing. I have not yet finished porting the demos. Later when time I will add D style wrappers.
Bindings for libmRSS: for parsing, writing and creating RSS/ATOM files or streams.
https://github.com/Laeeth/d_rss/ d_rss: D Programming Language bindings for libmRSS. http://www.autistici.org/bakunin/libmrss/doc/ mRss is a C library written by Andrea Marchesini for parsing, writing and creating RSS/ATOM files or streams. This library supports: RSS 0.91 - http://my.netscape.com/publish/formats/rss-spec-0.91.html RSS 0.92 - http://backend.userland.com/rss092 RSS 1.0 - http://web.resource.org/rss/1.0/ RSS 2.0 - http://www.rssboard.org/rss-specification ATOM 0.3 - http://www.mnot.net/drafts/draft-nottingham-atom-format-02.html ATOM 1.0 - http://tools.ietf.org/html/rfc4287
Re: DMD's lexer available on code.dlang.org
I've created a dub package for the D version of DMD's lexer, generated automatically from the C++ source. very cool. on a related note, have you considered sharing your translation tool (c++ -> D)? I completely understand if you would rather not of course. Laeeth.
Re: DMD's lexer available on code.dlang.org
On Monday, 5 January 2015 at 02:51:17 UTC, Daniel Murphy wrote: "Laeeth Isharc" wrote in message news:yzmwemaevaltcmkyw...@forum.dlang.org... on a related note, have you considered sharing your translation tool (c++ -> D)? I completely understand if you would rather not of course. The translation tool is available on github and is boost licensed. This pull request contains the latest version in src/magicport - https://github.com/D-Programming-Language/dmd/pull/3410 Please keep in mind that the tool makes a lot of assumptions about the C++ source that may not be valid for projects other than dmd. It's fairly easy to adapt to other projects, but it won't work on them out of the box. Thanks v much - this will be very helpful indeed.
Re: I'll be presenting at NWCPP on Jan 21 at Microsoft
On Monday, 5 January 2015 at 07:46:20 UTC, Walter Bright wrote: http://nwcpp.org/ All are invited. Now I just have to write the presentation :-( Congratulations. I hope the talk goes well. Will audio be available afterwards? At a slight tangent, has anything more recent been written on the C++ interface? I understand it is more complete than what is described on the Wiki/at dlang.org and have not been able to find a write-up of this. Thanks. Laeeth.
Re: I'll be presenting at NWCPP on Jan 21 at Microsoft
On Monday, 5 January 2015 at 21:07:04 UTC, Walter Bright wrote: On 1/5/2015 5:31 AM, Laeeth Isharc wrote: Will audio be available afterwards? NWCPP usually will post the video afterwards. At a slight tangent, has anything more recent been written on the C++ interface? I understand it is more complete than what is described on the Wiki/at dlang.org and have not been able to find a write-up of this. Sorry, nothing yet. It's a work in progress. Thanks, Walter.
D bindings and high level wrapper for systemd journal
D Language bindings and high level wrapper for the systemd journal logging service (journalctl) https://github.com/Laeeth/d_sysdlog alpha status rather than grep /var/log/messages, systemd interface makes it easy to filter by field and period of interest. metadata is stored along with regular log messages, which reduces the ability of bad actors to spoof logs Link to C API here: http://www.freedesktop.org/software/systemd/man/sd-journal.html Description systemd-journald is a system service that collects and stores logging data. It creates and maintains structured, indexed journals based on logging information that is received from a variety of sources: Kernel log messages, via kmsg Simple system log messages, via the libc syslog(3) call Structured system log messages via the native Journal API, see sd_journal_print(4) Standard output and standard error of system services Audit records, via the audit subsystem The daemon will implicitly collect numerous metadata fields for each log messages in a secure and unfakeable way. See systemd.journal-fields(7) for more information about the collected metadata. Log data collected by the journal is primarily text-based but can also include binary data where necessary. All objects stored in the journal can be up to 2^64-1 bytes in size.
Re: Binutils 2.25 Released - New D demangling support
How do I get it? --- The release itself is a source package, however a safer choice is to get the release binaries through your Linux distributor. Fortunately, there have been distributions who have been shipping it as early as three weeks ago. In case it saves someone else a few minutes: for Fedora 21 (and probably others). (At your own risk if new version of binutils breaks something else). yum install fedora-repos-rawhide yum install binutils --enablerepo rawhide objdump -v
Re: Binutils 2.25 Released - New D demangling support
yum install fedora-repos-rawhide yum install binutils --enablerepo rawhide objdump -v sorry. should be: yum install fedora-release-rawhide yum install binutils --enablerepo rawhide objdump -v
Re: New D tutorial found, with broken web compilation
I sent your post to them: Address: 388-A , Road no 22, Jubilee Hills, Hyderabad AP, INDIA-500033 Email: cont...@tutorialspoint.com Website: www.tutorialspoint.com On Monday, 26 January 2015 at 18:12:59 UTC, Carl Sturtivant wrote: Go to http://www.tutorialspoint.com/d_programming/d_programming_environment.htm and click "Try It!" on the upper right hand corner of the sample code to compile it. Their D compiler installation is defective. The same is true for all such in that tutorial that I tried. I am also posting this to dlang.org as they ignored my earlier attempt to communicate about this. Here's what happens in the browser. Maybe someone else can get through to them. Compiling the source code $dmd -I./ main.d -ofdemo.amx 2>&1 Error: cannot find source code for runtime library file 'object.d' dmd might not be correctly installed. Run 'dmd -man' for installation instructions. import path[0] = ./ import path[1] = /usr/local/dmd2/druntime/import import path[2] = /usr/local/dmd2/phobos import path[3] = /usr/bin/../../src/phobos import path[4] = /usr/bin/../../src/druntime/import
Re: Calypso: Direct and full interfacing to C++
On Saturday, 24 January 2015 at 00:51:49 UTC, Elie Morisse wrote: Nevermind it's just that CodeGen is ambiguous with clang::CodeGen although my compiler doesn't complain. Fixed. Hi Elie. We are really excited about your project, as it really opens up new possibilities and will certainly save many months of time. I have struggled with building Calypso and tried various different recent release versions of clang to no avail. (LDC/LLVM/clang build without problem). I will post build errors shortly Would there be any chance you could fork a version of clang that works with Calypso, and then link to it in the instructions? Later it might also be worth using the D port of the dlang update.sh tool that I wrote so one can automate the process of downloading and building the various different pieces. So many moving parts that it is easy for something to break. Laeeth.
Re: London D Programmers MeetUp
Thank you, Kingsley, for a very well organized and thought-through event. I was impressed by the calibre of people that attended, and look forward to attending future meetups.
Re: London D Programmers MeetUp
One interesting anecdote: somebody in a financial services company gave an account of giving D a try as a way to prototype something quickly, intending to rewrite it later in a more conventional language. The prototype went straight into production, and they are happy with it. The C interop was important for them to have made this possible. It was interesting, because it is a serious company where people don't by any means have a hacker mentality, and it was one more point at variance with the "I am a java programmer but do all my personal projects in D" narrative, and also because this particular kind of company is exactly the sort of second wave early adopter one wants to have. (I hope I represented this accurately, and tried to make this as vague as possible whilst still keeping it useful since people might not want the details of what they do being public).
Re: London D Programmers MeetUp
On Thursday, 5 February 2015 at 12:06:31 UTC, Russel Winder wrote: On Wed, 2015-02-04 at 21:35 +, Iain Buclaw via Digitalmars-d-announce wrote: […] That pretty much sums up my understanding of it too. I recollect the "banter" including (paraphrased): "if the prototype works, just put it into production, it's standard practice." Shhh... We have investors to keep happy.
Re: London D Programmers MeetUp
On Thursday, 5 February 2015 at 20:40:52 UTC, Laeeth Isharc wrote: On Thursday, 5 February 2015 at 12:06:31 UTC, Russel Winder wrote: On Wed, 2015-02-04 at 21:35 +, Iain Buclaw via Digitalmars-d-announce wrote: […] That pretty much sums up my understanding of it too. I recollect the "banter" including (paraphrased): "if the prototype works, just put it into production, it's standard practice." Shhh... We have investors to keep happy. half-jest
Re: London D Programmers MeetUp
On Wednesday, 11 February 2015 at 22:28:03 UTC, Walter Bright wrote: On 2/4/2015 1:17 PM, Laeeth Isharc wrote: One interesting anecdote: somebody in a financial services company gave an account of giving D a try as a way to prototype something quickly, intending to rewrite it later in a more conventional language. The prototype went straight into production, and they are happy with it. The C interop was important for them to have made this possible. It was interesting, because it is a serious company where people don't by any means have a hacker mentality, and it was one more point at variance with the "I am a java programmer but do all my personal projects in D" narrative, and also because this particular kind of company is exactly the sort of second wave early adopter one wants to have. (I hope I represented this accurately, and tried to make this as vague as possible whilst still keeping it useful since people might not want the details of what they do being public). I'd like to invite this fellow to propose a case study presentation at Dconf 2015. Can someone please forward this to him, or put him in contact with myself or Andrei? I will dig his card out unless Kingsley gets there first. (Let me know if so). Laeeth
Re: London D Programmers MeetUp
done. and gave him headsup too. is your email no spam o n e at yourfullname.com ? if not what should the first part be? or you can email me at myfirstn...@myfirstname.com On Friday, 13 February 2015 at 07:31:52 UTC, Laeeth Isharc wrote: On Wednesday, 11 February 2015 at 22:28:03 UTC, Walter Bright wrote: On 2/4/2015 1:17 PM, Laeeth Isharc wrote: One interesting anecdote: somebody in a financial services company gave an account of giving D a try as a way to prototype something quickly, intending to rewrite it later in a more conventional language. The prototype went straight into production, and they are happy with it. The C interop was important for them to have made this possible. It was interesting, because it is a serious company where people don't by any means have a hacker mentality, and it was one more point at variance with the "I am a java programmer but do all my personal projects in D" narrative, and also because this particular kind of company is exactly the sort of second wave early adopter one wants to have. (I hope I represented this accurately, and tried to make this as vague as possible whilst still keeping it useful since people might not want the details of what they do being public). I'd like to invite this fellow to propose a case study presentation at Dconf 2015. Can someone please forward this to him, or put him in contact with myself or Andrei? I will dig his card out unless Kingsley gets there first. (Let me know if so). Laeeth
Re: Alexa Skill written in D
On Wednesday, 11 January 2017 at 12:16:06 UTC, extrawurst wrote: On Tuesday, 10 January 2017 at 11:46:22 UTC, Laeeth Isharc wrote: On Saturday, 7 January 2017 at 13:17:35 UTC, extrawurst wrote: Thank you for doing this - really happy about it. A perfect open source moment - I was wondering about how to go about getting Alexa working. But I had shared the AWS Lambda stuff which proved useful for you, and now you solved the problem for me and helped others on top. Laeeth. Hi Laeeth, thanks again for your post about aws lambda + D - wouldn't have thought about this whole thing otherwise. I wanted to ask you if you thought about using another platform but nodejs wrap the D exe in lambda. They support java and C# aswell. I was wondering if it is a performance difference to use them instead ?! Looking forward to your input. Cheers, Stephan Hi Stephan. I think at the time C# was not possible, and not sure if java was. I don't know those languages so well, but if someone would like to try and see if it makes a difference, I would be happy to grant them rights to co-maintain the repo and add those as options. If I recall right, there shouldn't be a performance difference - just a question of latency to start. Will Java or C# be better in those respects given time needed to start the VM? Laeeth.
Re: DConf 2017 Hotel - book now!
On Thursday, 16 March 2017 at 19:35:31 UTC, Steven Schveighoffer wrote: On 3/14/17 12:39 PM, Bastiaan Veelo wrote: On Saturday, 4 March 2017 at 20:08:39 UTC, Vladimir Panteleev wrote: On Thursday, 2 March 2017 at 02:24:50 UTC, Walter Bright wrote: http://www.ibis.com/gb/hotel-5694-ibis-berlin-neukoelln/index.shtml Last year, some people booked late and it was full and they had to stay at another hotel. Aaand it's sold out. 2 months before the conference. Wow :) I just booked Erlanger Hof. It too is filling up fast. That was booked when I tried. Anyone else staying at the Hotel Ludwig Van Beethoven (just booked that one)? -Steve I'm there too. Laeeth.
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Tuesday, 21 March 2017 at 00:25:46 UTC, Steven Schveighoffer wrote: On 3/20/17 4:09 PM, Atila Neves wrote: http://code.dlang.org/packages/excel-d This dub package allows D code to be called from Excel. It uses compile-time reflection to register the user's code in an XLL (a DLL loaded by Excel) so no boilerplate is necessary. Not even `DllMain`! It works like this: If I wanted to replace our horrifying web queries from Excel with this, I'm assuming I could? That would be awesome. -Steve Yes - you could, provided the function is nogc. Have done some work on using std.experimental.allocator (well I had a working version, but was trimmed a bit), and will publish a revised version when we get time, but it wouldn't be hard to add directly yourself. PRs welcome. If you allocate memory just make sure that you hook into the xlautofree callback (or whatever it's called - long time since I touched this) to free it. I try to keep the excel functions as simple as possible, because I don't want to crash a trader's spreadsheet. So we end up with a little local server running as a windows service that does the work. (We use nanomsg tcp/ip on localhost as struggled with IPC on windows, but you could talk to it however is convenient). Look forward to catching up at dconf in Berlin. Atila will be there too (and Stefan of course). I'm staying at the Beethoven too. Laeeth.
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Monday, 20 March 2017 at 20:32:20 UTC, Stefan Koch wrote: On Monday, 20 March 2017 at 20:09:58 UTC, Atila Neves wrote: http://code.dlang.org/packages/excel-d This dub package allows D code to be called from Excel. It uses compile-time reflection to register the user's code in an XLL (a DLL loaded by Excel) so no boilerplate is necessary. Not even `DllMain`! It works like this: [...] Ah Interesting to see how this turned out. Thanks for your help on this, Stefan. I'll publish Bloomberg API too when we have had time to tidy it up a bit more. Reddit link here: https://www.reddit.com/r/programming/comments/60koa6/dlang_wrapper_to_write_excel_functions_ctfe_magic/
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Tuesday, 21 March 2017 at 00:25:46 UTC, Steven Schveighoffer wrote: On 3/20/17 4:09 PM, Atila Neves wrote: http://code.dlang.org/packages/excel-d This dub package allows D code to be called from Excel. It uses compile-time reflection to register the user's code in an XLL (a DLL loaded by Excel) so no boilerplate is necessary. Not even `DllMain`! It works like this: If I wanted to replace our horrifying web queries from Excel with this, I'm assuming I could? That would be awesome. -Steve so calling curl c bindings should definitely work, or there might be some nogc curl type library on code.dlang.org.
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Tuesday, 21 March 2017 at 13:59:56 UTC, Jacob Carlborg wrote: On 2017-03-20 21:09, Atila Neves wrote: http://code.dlang.org/packages/excel-d This dub package allows D code to be called from Excel. It uses compile-time reflection to register the user's code in an XLL (a DLL loaded by Excel) so no boilerplate is necessary. Not even `DllMain`! It works like this: It's cool that this is possible to do in D, but I feel sorry for anyone that has a reason :) It's the current year, but for the time being for many practitioners in the investment world there is no better alternative to using a spreadsheet as one window onto server side processes used for certain things. Not the only window. I'd personally be thrilled to say goodbye both to spreadsheets and to Windows, but one also has to be somewhat pragmatic. And actually it's by far better to be able to write things for spreadsheets in D quickly versus the conceivable alternatives...!
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Wednesday, 22 March 2017 at 02:30:50 UTC, Saurabh Das wrote: On Monday, 20 March 2017 at 20:09:58 UTC, Atila Neves wrote: http://code.dlang.org/packages/excel-d This dub package allows D code to be called from Excel. It uses compile-time reflection to register the user's code in an XLL (a DLL loaded by Excel) so no boilerplate is necessary. Not even `DllMain`! It works like this: [...] This is too good. We already use a cobbled-together Excel runner type thing. It will be so much better to use excel-d. Thanks so much Atila! Glad it's helpful. Pull requests welcomed :)
Re: excel-d v0.0.1 - D API to write functions callable from Excel
On Monday, 24 April 2017 at 21:59:34 UTC, Atila Neves wrote:
Now with more `@nogc`. Before, this worked fine:
double func(double d) @nogc nothrow { return d * 2; }
The function is `@nogc`, the wrapper function (i.e. the
function that Excel actually calls) is also `@nogc` via the
magic of compile-time reflection. So far, so good. But what if
you want to return a string or an array back to Excel. Oh, oh...
Enter the `@Dispose` UDA:
And Bob's your uncle.
Atila
Very nice.
On reddit here since it's a pretty nice example of how you don't
need to use dark magic to write code in D without depending on
the GC:
https://www.reddit.com/r/programming/comments/67dogy/writing_excel_addins_in_d_without_using_the/
Re: excel-d v0.0.1 - D API to write functions callable from Excel
C++ example for XLW:
LPXLFOPER EXCEL_EXPORT xlStats(LPXLFOPER inTargetRange) {
EXCEL_BEGIN;
XlfOper xlTargetRange(inTargetRange);
// Temporary variables.
double averageTmp = 0.0;
double varianceTmp = 0.0;
// Iterate over the cells in the incoming matrix.
for (RW i = 0; i < xlTargetRange.rows(); ++i)
{
for (RW j = 0; j < xlTargetRange.columns(); ++j)
{
// sums the values.
double value(xlTargetRange(i,j).AsDouble());
averageTmp += value;
// sums the squared values.
varianceTmp += value * value;
}
}
size_t popSize = xlTargetRange.rows() *
xlTargetRange.columns();
// avoid divide by zero
if(popSize == 0)
{
THROW_XLW("Can't calculate stats on empty range");
}
// Initialization of the results Array oper.
XlfOper result(1, 2);
// compute average.
double average = averageTmp / popSize;
result(0, 0) = average;
// compute variance
result(0, 1) = varianceTmp / popSize - average * average;
return result;
EXCEL_END;
}
D example (didn't get time to test, but something like this) is a
little bit more concise! :
import std.algorithm:map,sum;
import std.range:front;
@Register(ArgumentText("input range to calculate statistics
for"),
HelpTopic("excel-d"),
FunctionHelp("calculates mean and variance for input
array"),
ArgumentHelp(["input range to calculate statistics for"]))
auto xlStats(double[][] inTargetRange)
{
auto numCells = (inTargetRange.length > 0) ?
inTargetRange.length *
inTargetRange.front.length : 0;
auto means = inTargetRange.map!(row => row.sum).sum /
numCells;
auto sumSquares = inTargetRange.map!( row =>
row.map!(cell => cell*cell).sum).sum;
return [means, sumSquares / numCells - means];
}
Dconf - lightning talk: Excel add-ins in D
https://www.reddit.com/r/programming/comments/6brj2x/dconf_lighting_talk_excel_addins_in_d/?ref=share&ref_source=link (submitted to Hacker News - news.ycombinator.com too)
Re: Dconf - lightning talk: Excel add-ins in D
On Wednesday, 17 May 2017 at 21:17:37 UTC, jmh530 wrote: On Wednesday, 17 May 2017 at 20:58:05 UTC, Laeeth Isharc wrote: https://www.reddit.com/r/programming/comments/6brj2x/dconf_lighting_talk_excel_addins_in_d/?ref=share&ref_source=link (submitted to Hacker News - news.ycombinator.com too) The header says it's for the lightning talk on excel add-ins, but the link goes to Walter's talk. For me the link goes to the lightning talk, but Reddit displays inline Walter's talk. Strange.
Re: Trip notes from Israel
On Friday, 26 May 2017 at 16:55:44 UTC, Joakim wrote: On Friday, 26 May 2017 at 11:32:21 UTC, Andrei Alexandrescu wrote: Documentation of vibe.d was also mentioned as an important problem. More precisely, it's the contrast between the quality of the project and that of the documentation - someone said his team ended up with a different (and arguably inferior) product that was better documented. Literally they had the same engineer try each for a day. Reportedly it was very difficult to even figure whether vibe.d does some specific thing, let alone tutorials and examples of how to do it. Eh, documentation is going to be sparse for a non-corporate OSS project. If they're building products with vibe.d, presumably they can throw some consulting dollars Sonke's way and get him to help. A reasonable presumption, but I do not know if Sonke himself has capacity for such as he seems quite busy. So it might be worth thinking about alternative ways to move towards better docs for vibe.d (in collaboration with Sonke).
Re: D for Android beta
On Thursday, 1 June 2017 at 19:31:28 UTC, Joakim wrote: The beta release of ldc 1.3, the llvm-based D compiler, is now out: https://github.com/joakim-noah/android/releases It is accompanied by a non-trivial sample app from the Android NDK, ported from C++ to about 1.2 klocs of D: the classic Utah Teapot (https://en.wikipedia.org/wiki/Utah_teapot), updated with mobile touch controls. This app also demonstrates calling Java functions from your D code through JNI, though most of it is written in D. There are two builds of ldc, a cross-compiler that you can use from a linux/x64 shell to compile to Android/ARM, and a native compiler that you can run on your Android device itself. As I pointed out last year, not only is ldc a large mixed D/C++ codebase that just worked on ARM, but it is possible to build arbitrarily large Android apps on your Android device itself, a first for any mobile platform: http://forum.dlang.org/thread/ovkhtsdzlfzqrqneo...@forum.dlang.org This is the way the next generation of coders will get into coding, by tinkering with their Android devices like we did with Macs and PCs decades ago, and D is one the few languages that is already there. I will write up instructions on how to write an Android app in D _on_ your Android device by using ldc and the Termux app, and get ldc into the Termux packages, a package repository for Android: https://play.google.com/store/apps/details?id=com.termux&hl=en Congratulations, Joakim! https://www.reddit.com/r/programming/comments/6eqv46/write_mixed_dc_android_apps_even_build_them/ and news.ycombinator.com Looking forward to termux.
Re: Dynamic binding to the Mono runtime API
On Saturday, 3 June 2017 at 17:30:05 UTC, Jakub Szewczyk wrote: Mono runtime is a cross-platform, open-source alternative to Microsoft's .NET framework [1], and it can be embedded in other applications as a "scripting" VM, but with JIT-compilation enhanced performance and support of many languages such as C#, F# or IronPython [2]. It provides a C API, so I've bound it to D as a Derelict-based project, available at https://github.com/kubasz/derelict-mono, and as a DUB package (http://code.dlang.org/packages/derelict-mono). It currently wraps the Mono 5.0 API. There's also a simple example of calling a C# main from D code, and C# code calling a native function implemented in D. PS: Because I don't own a Mac I have no idea what the correct paths to the Mono shared library are, so it'd be great if someone could post/create a PR of them. [1] http://www.mono-project.com/ [2] http://www.mono-project.com/docs/advanced/embedding/scripting/ This is very cool - thank you for doing this. It could prove very helpful. Have you thought of/any interest in looking at automatically generating C# wrapper and bindings for D code? (I'm interested myself mostly in nested templated structs/arrays rather than classes). It may not be relevant for you, but if it is please drop me an email on laeeth ... at kaleidic.io Thanks. Laeeth.
Re: static foreach is now in github master
On Monday, 17 July 2017 at 18:14:35 UTC, Andrei Alexandrescu wrote: For those who want to play with our new static foreach feature and are willing to take the steps to building their own dmd, the feature is now merged in master: https://github.com/dlang/dmd/pull/6760 Happy hacking! Andrei Maybe good subject for an AMA (though not many upvoted so far). It's pretty cool that it was added on an afternoon during the hackathon. https://www.reddit.com/r/programming/comments/6pn257/static_foreach_added_to_d_compiler_nightly/ Could someone post to Hacker News - I don't have enough rep there for stories to propagate. Can always post another story later on explaining the practical benefits of static foreach (good topic for a D blog post) - marketing is about repetition.
Re: Update to Bare Metal STM32F4 (ARM Cortex-M4) LCD Demo Proof of Concept
On Thursday, 20 July 2017 at 12:23:31 UTC, Mike wrote: A few years ago I created a bare metal demo on an ARM Cortex-M4 microcontroller entirely in D. It was just a demonstration that one could do bare metal programming for microcontrollers in D without any dependencies on C or assembly. It was also a proof of some ideas I had about leveraging compile-time features of D to generate highly-optimized code (both small and fast) for these resource constrained systems. I hit a wall, however, with Issue 14758[0], and ultimately abandoned D for other alternatives. Well, that issue was recently fixed in GDC [1]. In addition, he GDC developers did some work to reduce the number of phony stubs one had to add to the runtime to get a build [2], removed the "shared is volatile" hack, and implemented the `volatileLoad/Store` intrinsics so I no longer need to do volatile access in assembly. So, I decided to give it another try, and updated that demo. You can see the results at https://github.com/JinShil/stm32f42_discovery_demo Congratulations, Mike. https://www.reddit.com/r/programming/comments/6pn31c/d_on_bare_metal_stm32f4_redux/ Could someone post to Hacker News? I don't have enough rep for it to propagate.
Re: Netflix opensources its first D library: Vectorflow
On Thursday, 3 August 2017 at 03:46:11 UTC, Matt wrote: On Wednesday, 2 August 2017 at 21:31:19 UTC, Walter Bright wrote: https://www.reddit.com/r/programming/comments/6r6dwp/netflix_opensources_its_first_d_library_vectorflow/ Speakng of D in data science (where I think it can get traction), is there a standardized linear algebra library in D? Perhaps some hooks to Eigen? I saw a few upstarts LA libraries, but none that I would consider "the one to use in D", like numpy in python or Eigen in C++ We're using D in finance. D libraries are far from the maturity of Python, but they are developing quickly. https://github.com/kaleidicassociates/lubeck Library we have open-sourced https://github.com/libmir/mir-algorithm Mir library we sponsor Other mir libraries: https://github.com/libmir/mir-lapack https://github.com/libmir/mir-blas https://github.com/libmir/lapack https://github.com/DlangScience/cblas Performance matters: http://blog.mir.dlang.io/glas/benchmark/openblas/2016/09/23/glas-gemm-benchmark.html
London senior DevOps job and two London [D-ish] developer roles
Hi. Symmetry Investments is looking to hire one senior platform engineering / devops person in London (and also looking for two developers - one for building native/Jupyter GUI front-end of tools, and the other to work with our research team). So far, I've only had time to write and post the job description for the devops role (I'll do the others shortly). You can see that one here: https://jobs.github.com/positions/8e98eac8-b504-11e7-9da8-0737a3dcef18 We would consider someone with less formal experience/seniority. Some stuff about the firm here: http://symmetryinvestments.com/about-us/ https://stackoverflow.com/jobs/companies/symmetry-investments Please feel free to drop me a line if you're interested or know of someone who might be - for this role or for the others. How much of this work can be in D? It very much depends on the person, and what's sensible for the job. Potentially quite a lot, probably not all of it. Thanks. Laeeth.
Re: London senior DevOps job and two London [D-ish] developer roles
On Friday, 20 October 2017 at 09:11:17 UTC, Arjan wrote: On Thursday, 19 October 2017 at 20:01:20 UTC, Laeeth Isharc wrote: Hi. Symmetry Investments is looking to hire ... Please feel free to drop me a line if you're interested or know of someone who might be - for this role or for the others. How would one contact you? devops.hiring at symmetryinvestments.io
Re: excel-d v0.2.16 - now with more @Async
On Friday, 22 December 2017 at 22:08:23 UTC, Mengu wrote: On Friday, 22 December 2017 at 00:41:31 UTC, Atila Neves wrote: excel-d lets you write plain D code that can be run from Excel unmodified via the magic of compile-time reflection. [...] can we use excel-d with office for mac? I don't think so but I am not familiar with the Excel API on Mac so it's possible not too many changes required. Pull requests welcomed :)
Re: Vision document for H1 2018
On Sunday, 11 March 2018 at 16:15:22 UTC, rumbu wrote: On Sunday, 11 March 2018 at 14:37:28 UTC, bachmeier wrote: And this clarifies the source of your confusion. The D programming language is an open source project, not a for-profit company. D is not the language you're looking for. There are 3 years since C# is also open source project. Last week 72 pull requests form 24 contributors were merged on ~master. And this is only for Roslyn (the C# compiler). The difference (at least for me) is that contributing to C# is a no-brainer. Contributing to D needs an advanced degree in computer science. Using the information on the D wiki didn't helped me until now to successfully compile and test a fresh copy of dmd or phobos. Funnily enough, becoming a significant contributor to the ecosystem - compiler or Phobos - demonstrably does not require even a complete graduation from high school or any industrial programming experience. I know of what I speak, but I don't say who as it's not for me to say. I was in Munich over new year and I asked someone else who has been a star contributor how he got involved. It was really easy for him to start contributing, so he did. But different people find different things easy. You don't need to have subsystem for Linux to use bash. Just the standard git client for Windows is enough. I agree the Windows experience could be easier upfront. Still, it's better than it used to be and next year it will be better again. You can't really compare the C# ecosystem to the D ecosystem because they are organised around different principles. Yes, the pain is upfront with D, and it's not for everyone. However on the basis of rational calculation the pain in learning something new is a small part of the total cost of the technology choice and for some people by far not the most relevant question. And it's an advantage in hiring because the D community filters for people who have a tolerance for discomfort upfront. It would be wonderful to be able to wave a wand and make all of life's little frustrations disappear. But in my experience, that's not what is possible - one picks from the choices available and the new ones one thinks up. People have a tendency to think that leadership has more power to just change things then is actually the case. I'm going to be building standard developer images from scratch programmatically. Transform froma Windows ISO into a VM image.Maybe I could open source those scripts and then it's easier to get to the bottom of any install and build problems and one can replicate difficulties.
Re: Vision document for H1 2018
On Sunday, 11 March 2018 at 07:59:53 UTC, rumbu wrote: On Sunday, 11 March 2018 at 01:10:28 UTC, psychoticRabbit wrote: On Sunday, 11 March 2018 at 00:36:19 UTC, Dylan Graham wrote: And personally, depending on the problem, C# is better to program in than D. I still don't know why C# programmers are willing to give up C# and prefer to use D. C# is vastly surperior for what it does. Because, even the language creators seem to not recognize this, D looks like C# with *native compilation*, the syntax is 95% identical. Basically, if my source code doesn't use any .NET framework function, it will compile successfully with dmd without any (major) change. I suppose that every C# programmer is enthusiastic on the first contact with the D language, but fails to keep his enthusiasm when he sees Phobos. C# programmer's mind is locked in the OOP world and Phobos looks like a mess from his point of view. The problem is that D stagnates and in the same time C# evolves. Sometimes I feel like the C# language team is using D as inspiration for the new features, starting with C# 7.0, a lot of D concepts were introduced in the language: local functions, '_' as digit separator, binary literals, ref returns, tuples, templates, immutability. Guess what the next version of C# has on the table: slices. In the same time, D delegates new features (and sometime existing ones) to library implementation, instead of assume them in the language syntax. My opinion is that the day when C# will compile to native (on any platform), the C# developer interest in D will drop instantly. It's a good thing not bad that other languages are inspired by what works. Languages aren't in a vicious battle to the death, a Hobbesian war of all against all. If C# gets better, that's great! I don't think D is stagnating at all - on the contrary, it's amazing to see the ecosystem flourishing, no matter where you look - documentation, adoption, libraries, commercial adoption. I think it's reasonable to disagree with the strategic decision made to move capabilities from compiler to libraries. But you really have to make an argument about why you disagree if you are you expect to be persuasive because there is a thought-through argument for the choices made, which I am sure you must be familiar with. I don't think it matters much whether you are right about what happens to C# programmer interest in D dies as soon as C# native cross-platform is ready because D is quite an ambitious language and doesn't need to depend on adoption from any one community to continue growing at an impressive rate. As it happens though, as an empirical matter I doubt it. C# slices look great. I wanted to use them for generating wrappers for our analytics. Not that easy for that purpose, from what I could see. Looks like the primitives are stack only, and I tried to figure out how to use them elsewhere and gave up because it wasn't that easy. If Phobos looks like a mess to C# programmers, so much the worse for C# programmers. However I doubt they this is true in the general case. It's better in many ways, but different and unfamiliar and everything unfamiliar is disconcerting in the beginning.
Re: Vision document for H1 2018
On Sunday, 11 March 2018 at 19:58:51 UTC, rumbu wrote: On Sunday, 11 March 2018 at 17:15:28 UTC, Seb wrote: [...] Yes, I'm the typical lazy convenient Windows user scared of the terminal window. [...] I am happy for Posix users. Theoretically the process is the same on Windows. [...] This will need Linux subsystem as a Windows feature installed. Bash scripts do not work on Windows. Or other third party applications that are not listed as prerequisites on wiki. [...] make -fwin32.mak release Error: don't know how to make 'release' Ok, let's skip this, make it without "release". Now test it: cd test make all -j8 Command error: undefined switch '-j8' Why are you adding -j8 ? Does it say to do so in the instructions ? Try without it. (I can't test here as typing from my phone).
Re: Who says we can't call C++ constructors?
On Saturday, 21 April 2018 at 12:41:02 UTC, Atila Neves wrote: From https://dlang.org/spec/cpp_interface.html: "C++ constructors, copy constructors, move constructors and destructors cannot be called directly in D code". O RLY? Atila https://www.reddit.com/r/programming/comments/8eat5o/calling_c_constructors_from_d/ https://github.com/atilaneves/dpp
Re: autowrap v0.0.1 - Automatically wrap existing D code for use in Python and Excel
On Wednesday, 18 April 2018 at 15:28:07 UTC, Atila Neves wrote: http://code.dlang.org/packages/autowrap This came out of the need at work to take existing D code and make it available for both Excel and Python. Both pyd and excel-d make the reasonable assumption that one is using them to write code specifically for those environments. That breaks when there's existing production D code one wants to wrap. https://www.reddit.com/r/programming/comments/8eb12m/autowrap_v001_automatically_wrap_existing_d_code/
Re: Announcing Mecca
On Friday, 4 May 2018 at 05:23:51 UTC, Shachar Shemesh wrote: Hello everybody, I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs. [...] https://www.reddit.com/r/programming/comments/8gxrkg/wekaio_open_sources_mecca_dlang_library_for_nogc?sort=new
Re: A bit more Emscripten
On Tuesday, 8 May 2018 at 18:44:06 UTC, Vladimir Panteleev wrote: On Tuesday, 8 May 2018 at 09:51:11 UTC, Mike Franklin wrote: I've been recently assigned the task of building a web-based Ladder Logic editor/compiler (https://en.wikipedia.org/wiki/Ladder_logic). This would not be a short-lived application, however. Hmm, sounds like this would be an interactive application that would need access to the HTML DOM. Currently, this isn't directly possible - when running in an asm.js VM, there is no D type to represent a JavaScript object. It is possible to call out to / eval JavaScript, though, so perhaps it could be possible using a shim, where a JavaScript array holds JavaScript/DOM objects, and D refers to them by index. Maybe we could port something like this to D. Or wait till someday dpp can #include the STL. https://github.com/mbasso/asm-dom/blob/master/README.md
Re: A bit more Emscripten
On Thursday, 10 May 2018 at 08:32:07 UTC, Vladimir Panteleev wrote: On Tuesday, 8 May 2018 at 08:53:36 UTC, Vladimir Panteleev wrote: https://github.com/CyberShadow/dscripten-tools Progress update: - std.stdio.writeln() works - Using a D main() works (though unittests and static constructors still don't) - WebAssembly output works! - std.allocator works (at least, Mallocator + building-blocks do) Very cool, Vladimir. When I get time we will try to see if it's useful for some internal prototype tools.
Re: autowrap v0.0.1 - Automatically wrap existing D code for use in Python and Excel
On Thursday, 10 May 2018 at 19:50:40 UTC, Nikos wrote:
In my dub.sdl file I have
configuration "python35" {
subConfiguration "autowrap" "python35"
}
and I run
dub build --config=python35
which still tries to find python36. Why doesn't it look for 3.5?
Hi. On my phone so can't copy paste. Edit your dub.sdl under
the python35 subconfiguration and change python 36 to python35.
Re: autowrap v0.0.1 - Automatically wrap existing D code for use in Python and Excel
On Sunday, 13 May 2018 at 16:23:49 UTC, Nikos wrote:
I'm trying to wrap drepl
(https://github.com/dlang-community/drepl)
My dub.sdl files is
import autowrap.python;
mixin(
wrapAll(
LibraryName("drepl"),
Modules("drepl.interpreter"),
)
);
I also flagged `export` the interpreter function
export Interpreter!Engine interpreter(Engine)(return scope
Engine e) if (isEngine!Engine)
{
// workaround Issue 18540
return Interpreter!Engine(() @trusted { return move(e);
}());
}
I build the library with python35, but when I import it from
python idle, I cannot access the `interpreter` function at all.
I have the feeling I miss something essential here, but I don't
know what it is.
Any ideas?
It won't wrap a templated type or function. You will have to
make a little shim that instantiates the templated function with
a particular type.
Re: autowrap v0.0.1 - Automatically wrap existing D code for use in Python and Excel
On Sunday, 13 May 2018 at 16:23:49 UTC, Nikos wrote:
I'm trying to wrap drepl
(https://github.com/dlang-community/drepl)
My dub.sdl files is
import autowrap.python;
mixin(
wrapAll(
LibraryName("drepl"),
Modules("drepl.interpreter"),
)
);
I also flagged `export` the interpreter function
export Interpreter!Engine interpreter(Engine)(return scope
Engine e) if (isEngine!Engine)
{
// workaround Issue 18540
return Interpreter!Engine(() @trusted { return move(e);
}());
}
I build the library with python35, but when I import it from
python idle, I cannot access the `interpreter` function at all.
I have the feeling I miss something essential here, but I don't
know what it is.
Any ideas?
Eg turn this into a function and try wrapping this instead:
auto intp = interpreter(dmdEngine());
Symmetry Investments is recruiting developers in London and Hong Kong
Hi. Walter+Andrei said this was okay to post here since it relates to D. This is for one role working with our analytics and research groups; more in the pipeline. Feel free to ping me directly if you are involved with the community already. Laeeth. Symmetry About Us: At Symmetry Investments, we seek to engage in intelligent risk-taking to create value for our clients, partners and employees. Symmetry Investments is a global investment company with offices in Hong Kong and London. We have been in business since 2014 after successfully spinning off from a major New York-based hedge fund. Currently we have about 110 full time employees and manage approximately US$4.2 billion of capital. We derive our edge from our capacity to generate Win-Wins – in the broadest sense. Win-Win is our fundamental ethical and strategic principle. By generating Win-Wins, we can create unique solutions that reconcile perspectives that are usually seen as incompatible or opposites, and encompass the best that each side has to offer. We integrate fixed-income arbitrage with global macro strategies in a novel way. We invent and develop technology that focuses on the potential of human-machine integration. We build systems where machines do what they do best, supporting people to do what people do best. We are creating a collaborative meritocracy: a culture where individual contribution serves both personal and collective goals - and is rewarded accordingly. We value both ownership thinking AND cooperative team spirit, self-realization AND community. D/C++ Quantitative Developer This is an outstanding opportunity for the right person in terms of the intrinsic challenges of the role, the responsibility, the exposure to senior management, the opportunity to shape the development of something new, and over time the compensation. Whilst we are a commercial enterprise, we highly value deep technical expertise and the cultivation of craft. You will be working closely with the Partner in charge of technology, who is a contributor to the open source community and a change agent for adopting modern development practices within the company. https://github.com/symmetryinvestments/overview https://github.com/atilaneves/dpp https://dlang.org/blog/2017/05/31/project-highlight-excel-d/ https://github.com/libmir/mir-algorithm As a D/C++ Quantitative developer you will work closely with the analytics and research groups to develop analytics and tools to support the investment and research processes of Symmetry. Hard Requirements: We are looking for mature hackers with a moral compass and sense of responsibility who have kept their imaginativeness. We value interest and capabilities as much as formal experience. Academic credentials are not a requirement if you can demonstrate outstanding capabilities, but for this role you should have a strong knowledge of quantitative techniques and computer science - data structures and algorithms. You should also have strong knowledge of declarative programming. You should be comfortable with the finer points of D and C++, and you should be ready and able to go deep when necessary to identify and address the root cause of problems. You are able to write and develop domain-specific languages where they are an appropriate solution to a business challenge. You will be working in a creative, often less-structured environment, with a high degree of autonomy to implement solutions. You are comfortable asking for help when you need it. You are capable of accepting direction should the longer-term strategic goals of the firm favour a particular solution fit. You are able to communicate both at the level of ideas and concretely either in writing or in person/by telephone. The ability to be diplomatic is valuable, but not absolutely required. You have a pragmatic devotion to excellence: the ability to recognize and evaluate interim solutions, while not being satisfied about retaining a hack in the long run. You should recognise the costs of boilerplate and appreciate the aesthetic and commercial benefits of designs that involve writing as little code as possible. You should care deeply about design and code quality, and recognise that performance matters more often than not. You are able to think about problems in a generic, high-level way AND pragmatically use common sense. You can think associatively and hold a complex mental picture in your head as well as work sequentially. An ability to think clearly and to act decisively in occasional high-pressure moments is desirable. Soft Requirements: Knowledge of the below will be helpful: Languages: 5 years or more experience with D and C++; Python and Haskell or Ocaml Location: We currently work with certain remote developers as consultants. We view remote work as a way to collaborate with outstanding talent beyond the locations where we curre
dpp now compiles julia.h headers
Atila Neves' d++ now compiles julia.h. Modulo bugs this makes it possible to embed Julia in D (and probably the other way around, but I have not tried). https://github.com/kaleidicassociates/juliad
Re: dpp now compiles julia.h headers
On Friday, 13 July 2018 at 19:42:56 UTC, bachmeier wrote: On Friday, 13 July 2018 at 19:02:56 UTC, Laeeth Isharc wrote: Atila Neves' d++ now compiles julia.h. Modulo bugs this makes it possible to embed Julia in D (and probably the other way around, but I have not tried). https://github.com/kaleidicassociates/juliad This is great news for me. A lot of new Julia code is being written by economists. I was going to work on this once I had a block of time. Glad to return the favour. We started using embedr to call R libraries from D - thanks for that. I guess the next stage would be to work on autowrapping Julia -> D and viceversa.
Re: Symmetry Autumn of Code
On Saturday, 14 July 2018 at 07:30:26 UTC, Joakim wrote: On Saturday, 14 July 2018 at 06:02:37 UTC, Mike Parker wrote: Thanks to the sponsorship of Symmetry Investments, the D Language Foundation is happy to announce the Symmetry Autumn of Code! We're looking for three university students to hack on D this autumn, from September - January. We're also in search of potential mentors and ideas for student projects. Head to the Symmetry Autumn of Code page for the details. Spread the word! https://dlang.org/blog/symmetry-autumn-of-code/ "join us" for "submit an application" -> apply (confusing otherwise) Maybe sum up and make clear that each student can earn between $3000-4000, instead of capped at $1k. Why limit it to students? If the goal is to have a youth injection, just use an age limit- say 18-25- I see no reason for the stupid college bias. Hi Joakim. Thanks for suggestions. I don't know what legal aspects there are relating to targeting age in different countries. We are definitely targeting people earlier in their careers. I agree with you that talent isn't only found amongst students, and I've in the past hired someone that didn't even finish high school and has gone on to do good work for the D community. So as far as Symmetry goes we are very open to unusual talent. A degree is just one piece of interesting information. https://symmetryinvestments.com/careers/ There's quite a lot of work involved in organising something like this, and I'm very grateful to the D Foundation for doing such an excellent job. We can refine this for next year, but I wanted to make a start. Laeeth
Re: Symmetry Autumn of Code
On Saturday, 14 July 2018 at 07:09:21 UTC, Timoses wrote: On Saturday, 14 July 2018 at 06:02:37 UTC, Mike Parker wrote: Thanks to the sponsorship of Symmetry Investments, the D Language Foundation is happy to announce the Symmetry Autumn of Code! We're looking for three university students to hack on D this autumn, from September - January. We're also in search of potential mentors and ideas for student projects. Head to the Symmetry Autumn of Code page for the details. Spread the word! https://dlang.org/blog/symmetry-autumn-of-code/ Typos "D programming lagnauge" (looks a bit french) : D "accept yor offer." Thanks for corrections. Great! Wish I was a student still : D. Me too ! Kidding aside, if you would be interested in a job programming mostly or partly in D please see our website. Lots of roles we haven't yet had time to post.
Re: dpp now compiles julia.h headers
On Friday, 13 July 2018 at 22:22:25 UTC, Meta wrote: On Friday, 13 July 2018 at 19:02:56 UTC, Laeeth Isharc wrote: Atila Neves' d++ now compiles julia.h. Modulo bugs this makes it possible to embed Julia in D (and probably the other way around, but I have not tried). https://github.com/kaleidicassociates/juliad Very cool. It's awesome to be able to directly #include C++ headers. C++ headers with all basic features are not yet there. Atila thought it might be a couple of months work full-time to be able to do #include It's not out of the question to make that investment, but we need to hire a few more programmers locally first.
Re: Symmetry Autumn of Code
On Wednesday, 18 July 2018 at 10:42:04 UTC, Andre Pany wrote: On Saturday, 14 July 2018 at 06:02:37 UTC, Mike Parker wrote: Thanks to the sponsorship of Symmetry Investments, the D Language Foundation is happy to announce the Symmetry Autumn of Code! We're looking for three university students to hack on D this autumn, from September - January. We're also in search of potential mentors and ideas for student projects. Head to the Symmetry Autumn of Code page for the details. Spread the word! https://dlang.org/blog/symmetry-autumn-of-code/ Another proposal: Adding D support to gRPC I started to add D support to gRPC but paused it due to lack of knowledge and time. One solution would be to add a D wrapper to https://github.com/grpc/grpc/tree/master/src by making use of the C interface of gRPC (https://github.com/grpc/grpc/tree/master/include/grpc). As template e.g. C++ or python could be used (https://github.com/grpc/grpc/tree/master/src). Kind regards André Juniper have an alpha C higher interface on top of the low level C core grpc API. It didn't look too bad, but I didn't have time to finish what I started (making a crude D grpc API). https://github.com/Juniper/grpc-c
Dpp on run.dlang.io
Thanks to Seb and Atila it is now very easy to show a D program just #includeing C headers. If just works. Modulo bugs. In time I am hopeful Atila will start to have more of C++ headers working too. https://run.dlang.io/is/JlH3Th
Re: autowrap v0.0.1 - Automatically wrap existing D code for use in Python and Excel
On Sunday, 5 August 2018 at 20:01:22 UTC, Nikos wrote:
On Tuesday, 31 July 2018 at 09:09:11 UTC, Nicholas Wilson wrote:
On Sunday, 29 July 2018 at 18:14:31 UTC, Nikos wrote:
But when I try to export the whole dmdEngine
export:
auto engine(char[] txt) {
return interpreter(dmdEngine());
}
Can you export an instance of `interpreter(dmdEngine())`?
e.g.
__gshared auto dmdi = interpreter(dmdEngine());
export ref dmd()
{
return dmdi;
}
or if that doesn't work, proxy it
__gshared auto dmdi = interpreter(dmdEngine());
struct Dmd
{
mixin Proxy!dmdi;
}
export auto dmd()
{
Dmd d;
return d;
}
That is pretty much required if you want to maintain state
across.
Also I'm working on a D kernel for Jupyter notebook which
should be done soon.
Thank you very much for your feedback. Unfortunately, none of
the above worked.
By the way, the reason I'm trying all this is to create a
Jupyter notebook. I've already made a simple version of it some
time ago
(https://github.com/nikoskaragiannakis/d-jupyter-kernel). Since
you are also working on a D kernel, maybe we could work
together?
Working example of Python calling D Repl is here.
https://github.com/kaleidicassociates/pydrepl
Re: Dpp on run.dlang.io
On Saturday, 4 August 2018 at 13:15:24 UTC, Seb wrote: On Saturday, 4 August 2018 at 01:27:49 UTC, Laeeth Isharc wrote: Thanks to Seb and Atila it is now very easy to show a D program just #includeing C headers. If just works. Modulo bugs. In time I am hopeful Atila will start to have more of C++ headers working too. https://run.dlang.io/is/JlH3Th It now also supports multiple files (and compiling C files) with the Har format [1]: https://run.dlang.io/is/WwpvhT This should hopefully make it even more useful. [1] https://github.com/marler8997/har Thanks v much for this. One benefit of D is as a better glue language that integrates well with other languages and ecosystems. Many people who know a bit about D have no idea that interop can work so easily or well. So it might be worth mentioning this benefit as one link from main page and then linking from that to new page that mentions and has runnable examples (using HAR) for: Python (via autowrap:python and pyd) C (via dpp) C++ (extern(C++) for now) R (via embedr) Julia (via C interface, including julia.h via dpp) Lua (if LuaD stable enough) with just screenshot for: Excel (via autowrap excel / excel-d) C# via Binderoo Jupyter via pydmagic and just link for web assembly. Obviously a lot of work, but if you think a good idea we could work away at over time.
Re: Dpp on run.dlang.io
On Monday, 6 August 2018 at 13:32:23 UTC, bachmeier wrote: On Sunday, 5 August 2018 at 22:43:42 UTC, Laeeth Isharc wrote: One benefit of D is as a better glue language that integrates well with other languages and ecosystems. Many people who know a bit about D have no idea that interop can work so easily or well. So it might be worth mentioning this benefit as one link from main page and then linking from that to new page that mentions and has runnable examples (using HAR) for: Python (via autowrap:python and pyd) C (via dpp) C++ (extern(C++) for now) R (via embedr) Julia (via C interface, including julia.h via dpp) Lua (if LuaD stable enough) And Octave (via the .mex interface) - this one's important because it opens the door to using D as an extension language to Matlab If an Octave extension written in D works, do you have anywhere to point me to on what's needed to make it work with Matlab? (Is it usually drop-in compatible?)
D kernel for Jupyter notebook
Proof of concept works, but it requires some further development to be useful to do work in. https://github.com/kaleidicassociates/jupyterd It uses D repl currently - this was written for a console interface and probably you will encounter difficulties running it in a notebook environment. I guess one would like to treat all functions defined in a single notebook as part of the same session and to execute immediate statements as part of a main specific to that cell. The kernel is a bit flakey - takes time to come on line and you might need to reconnect to it sometimes. To Do: 1.Add HTML and markdown table output to display arrays of structs or of dicts in a useful manner 2.Integrate with mir and other numeric libraries 3.Integrate with charting 4.Consider adding to Dlang tour and run.dlang.io when stable 5.Integrate with dpp 6.Integrate with dub 1 and 3 should be quite simple. One wouldn't want to write a large program in Jupyter, but it's helpful for exploratory data analysis and programming where the code that does the work is already in D.
Re: D kernel for Jupyter notebook
On Tuesday, 4 September 2018 at 04:58:41 UTC, Shigeki Karita wrote: On Monday, 20 August 2018 at 00:14:03 UTC, Shigeki Karita wrote: On Sunday, 19 August 2018 at 20:33:45 UTC, Laeeth Isharc wrote: Proof of concept works, but it requires some further development to be useful to do work in. [...] Great. I have tried DUB integration. It seems to work. https://github.com/ShigekiKarita/grain/blob/master/example/repl.d I'm making a jupyter based tutorial for my library. It might be the first example for jupyterd. https://github.com/ShigekiKarita/grain/blob/master/tutorial.ipynb Very cool. Thank you. I was looking into Jupyter widgets. I ported over some of it and had to add the extension to protocol for widgets into the notebook. It's not that bad and might be pretty useful to be able to access widgets from D. Half-finished code right now that doesn't even build but I don't have so much time and won't for a couple of months.
Re: New Initiative for Donations
On Saturday, 27 October 2018 at 14:33:43 UTC, Neia Neutuladh wrote: On Sat, 27 Oct 2018 10:54:30 +, Joakim wrote: I see, so you want other taxpayers to bail you out for your mistakes, interesting. One of the major points of having a government is to create these regulations that make it less likely for individuals to suffer from the actions of other people and organizations. Another major point is to help people in need using the collective efforts of society. Programs like FDIC in the United States exist to serve both of these: it's an extra set of regulations for banks, and compliant banks will be bailed out if circumstances require. If I choose an FDIC bank and the owners run off with my money, I didn't make an avoidable mistake, any more than being mugged in the street is me making a mistake. If you oppose that, you're gunning for an eventual repeat of the Great Depression. Banks are special because of the payments system and because of lending. In October 2008 Gordon Brown was within two hours of shutting down the banking system and declaring a state of emergency. If that had happened nobody would have been able to make payments and new lending would have come to a halt. In 2038 you won't need banks to make payments because cryptocurrencies will be a viable alternative. And lending is already being provided by asset managers. So the justification for the combination of leverage and the mismatch in liquidity and risk of banks deposit liabilities and their assets will disappear. The component of TARP that constituted aid to the financial system made a profit, but nonetheless there will be very little public appetite for a repeat the next time around. At the request of the UK debt management office, I met the representative of the IMF financial stability review in early 2005. He had a bee in his bonnet about the dollar yen carry trade and hedge funds: generals always fighting the last war. I told him to worry about the banks and what they were buying. He didn't listen. So regulators have little skill when it comes to understanding systemic risk posed by the asset and liability decisions of banks and so it will be good to make that function redundant. So cryptocurrencies matter. They are far from mature right now though and it's not the most important thing if you have limited resources to accept them. The best way to get the Foundation to accept them might be to do the work to help...
Re: New Initiative for Donations
On Friday, 26 October 2018 at 06:19:29 UTC, Joakim wrote: On Friday, 26 October 2018 at 05:47:05 UTC, Neia Neutuladh wrote: On Fri, 26 Oct 2018 02:38:08 +, Joakim wrote: As with D, sometimes the new _is_ better, so perhaps you shouldn't assume old is better either. There's no assuming going on. Cryptocurrencies are worse than credit cards for everything that normal people care about, Such as? I already noted that they're easier and cheaper, you simply flatly state that "normal people" find them worse. and they're better than credit cards for illegal transactions. Yes, just like cash, and have other benefits that come with cash too. This might eventually change, and we can re-evaluate then. If for some reason cryptocurrencies become popular and sufficiently stable to be used as currency, I have no doubt that existing credit card companies will start offering automatic currency exchange, so you can have an account in USD and pay a vendor who accepts only Ethereum, or vice versa. As such, accepting credit card payments is good enough. I don't know what we'd be waiting for, the tokens I mentioned are all worth billions and widely used, particularly by techies: https://coinmarketcap.com Why would I wait for antiquated credit-card companies to accept these tokens? The whole point of these new tokens is to obsolete the credit card companies. Cryptocurrencies are worse is better for some people in some contexts. HSBC started the process of shutting down my company bank account because payments to programmers in Russia triggered some alerts and you get caught up in this Kafkaesque maze where there is nobody reasonable to talk to. I wrote to the Chairman in Hong Kong and only then could I get them to see reason and apologize. So for making payments to Russia, yes if the other side accepts them, worse is better in this case. For Venezuela or some African countries worse is obviously better quite a lot of the time. For making smaller payments overseas cryptocurrencies with low fees like BCH can be more efficient than a bank wire, even in the West. As regards particular currencies, deadalnix, member of the D community and creator of SDC compiler project is the man behind Bitcoin ABC, the largest Bitcoin Cash client, and one of the key people technically for Bitcoin Cash overall.
Re: Wed Oct 17 - Avoiding Code Smells by Walter Bright
On Thursday, 1 November 2018 at 22:37:59 UTC, unprotected-entity wrote: On Thursday, 1 November 2018 at 03:10:22 UTC, H. S. Teoh wrote: Actually, code within a module *should* be tightly coupled and cohesive -- that's the whole reason to put that code inside a single module in the first place. If two pieces of code inside a module are only weakly coupled or completely decoupled, that's a sign that they should not be in the same module at all. Or at the very least, they should belong in separate submodules that are isolated from each other. How does one determine, whether a 10,000 line module, is tightly coupled and cohesive? You take a look through it and make a judgement. Only the author can make that statement - which they naturally will, even if it's not true. ? An outsider, seeking to verify that statement, has a hell of a job on their hands...(I for one, think code smell immediately). There is a basic question in life. Do you believe in discernment (if possible informed by data) or are you someone who makes decisions on the basis of evidence and believes that anything else is completely arbitrary and nothing more than a matter of opinion. My impression is that the values of the D community tend more in the direction of recognising the importance of discernment. If someone is somebody who believes more in 'evidence', policy and rules then it probably isn't going to be satisfying expecting one's values to be shared on a wide scale here. People also differ in their working memory and the degree to which they naturally think associatively. Chopping up everything into small pieces favours those who have a smaller working memory and who think more analytically but it's a disadvantage for those who have a large working memory and think associatively. For a private project that's something to be resolved between the relevant people, but I don't think it's reasonable to say that large files per se are wrong, just because they aren't your cup of tea personally. I think that lots of things seem clear in theory but the difference between theory and practice is often quite large. In practice Phobos is very readable. And on the other hand, I have seen an experienced and capable C# programmer struggle to understand an intranet site written in the approved way by an experienced person who was well-trained at Microsoft. I couldn't understand it either so I concatenated all the little itty bitty files, pulled out the data structures and then it was easy. I don't use a particular language. I'm more interested in design and architecture. Can one really speak of that kind of design in the abstract ? Language features shape your choices and lead to large shifts in the optimum. If you don't have design by introspection as a possibility you are going to pick something else. In the age of 'lock-down-everything', increased modularity is becoming more important. A monolithic module approach, is already outdated, and risky, in terms of developing secure, maintainable software If you can't understand the program does that make you more or less secure? Security requires also to understand the behaviour of the system as a coherent whole. I think D programs are pretty easy from that perspective. Is that really such a bad idea? Are there no programmers out there in the D world that might think this could be a good, additional tool, to give programmers, so they can better architect their solution? Burden of proof is on you to write a DIP and make an argument for it. I am not sure you would find it easier to get a change into C++. Look at how difficult it is for Walter sometimes ; and he has just a little earned credibility. Same thing for Guido - he had such little fun with a recent PEP he decided to retire from BDFL of python. The amount of push back in the D community on this idea, is really odd to me. I'm still trying to understand why that is. Persuading people isn't easy even if it's a good idea. Look at the pushback from C++ over static if. They crippled it when they finally did relent. It's a bit entitled to think that if you can't persuade people without having written a DIP that it's them not you! Are D programmers just hackers, insterested in getting their code to work, no matter what? Are their not enough Java/C# programmers coming to D - and bringing their design skills with them? Would you mind explaining why you think that people from mass communities have design skills by virtue of having come from a mass community? Walter and Andrei are just a little bit known for their design capabilities so the bar is quite high. I think it's possible you might have things topsy turvy. Making D code work is rarely a problem. Every nation has its own strengths and weaknesses and the same is true of language communities. Having worked with D professionally since 2015 and with a decent size codebase in re
Re: xlsxd: A Excel xlsx writer
On Wednesday, 7 November 2018 at 16:49:58 UTC, H. S. Teoh wrote:
On Wed, Nov 07, 2018 at 04:41:39PM +, Robert Schadek via
Digitalmars-d-announce wrote:
https://code.dlang.org/packages/xlsxd
Announcing xlsxd a OO wrapper for the C library libxlsxwriter
[1].
Run:
import libxlsxd;
auto workbook = newWorkbook("demo.xlsx");
auto worksheet = workbook.addWorksheet("a_worksheet");
worksheet.write(0, 0, "Hello to Excel from D");
and you have created a Excel spreadsheet in the xlsx format
with name
demo.xlsx
that contains the string "Hello to Excel from D" in row 0,
column 0.
[1] https://github.com/jmcnamara/libxlsxwriter
Is there support for reading xlsx files too?
T
There are various C libraries.you could just use DPP to call
them..
Re: D compilation is too slow and I am forking the compiler
On Monday, 26 November 2018 at 16:00:36 UTC, Guillaume Piolat wrote: On Thursday, 22 November 2018 at 04:48:09 UTC, Vladimir Panteleev wrote: On Wednesday, 21 November 2018 at 20:51:17 UTC, Walter Bright wrote: Unfortunately, you're right. The title will leave the impression "D is slow at compiling". You have to carefully read the article to see otherwise, and few will do that. Sorry about that. I'll have to think of two titles next time, one for the D community and one for everyone else. If it's of any consolation, the top comments in both discussion threads point out that the title is inaccurate on purpose. Please don't get me wrong, it's an excellent article, a provocative title, and fantastic work going on. I didn't meant to hurt! In my opinion language adoption is a seduction/sales process very much like business-to-consumer is, the way I see it it's strikingly similar to marketing B2C apps, unless there will be no "impulse buy". I think that there are different strategies - decent appeal to a broad market and having a very high appeal to a small market (but there has better be something good about your potential customer base ie 'D, if you find VBA too difficult' is probably not a good strategy!). And you probably don't get to pick which situation you are in, and then one had better realise it and play the game you're in. The particular kind of market will shape what works - in my business you approach a retail client base differently from regular institutional investors and then the worlds' largest pools of money involved something else again. D isn't really marketed and it's definitely not sold. That's an implicit strategy in itself. Nassim Taleb raises the question of how do you choose between two surgeons, both recommended. One looks the part and hangs his many certificates on his office wall. The other looks scruffy with the appearance of a tradesman. Who do you pick? Taleb says pick the guy who doesn't look the part because if he got there without signalling he must have something going for him. But in general you can appeal on merits mostly to an audience that is highly discerning and very capable. If you haven't got any money to appeal to an audience that judges based on heuristics and social factors well then you can try to avoid accidentally putting people off, you can be creative with guerilla marketing but the key thing is to make the most of what you got. If everyone else does things a certain way then if for some reason that's closed off to you for now then if you look closely, with active perception,you may well see opportunities that are neglected to approach the problem another way. Actually no less than 3 programmer friends came to (I'm the weirdo-using-D and people are _always_ in disbelief and invent all sorts of reasons not to try) saying they saw an article on D on HN, with "D compilation is slow", and on further examination they didn't read or at best the first paragraph. But they did remember the title. They may rationally think their opinion of D hasn't changed: aren't we highly capable people? It doesn't matter what most people think. It matters what people who are on the fence or using D already a bit think. Or people who have a lot of problems to which D is in part a solution only they didn't know about or think of D yet. The messenger matters too. If someone you trust and rate highly tells you something based on their experience that counts for a lot more than all the blog posts in the world. And working code and lived experience dominates the social talk about it. I've talked about D with the CTO of Bloomberg, the outgoing COO of Barclays investment bank, the number two guy at a 30bn hedge fund, the COO of the largest hedge fund in the world (depending on how you count) and more. That's not going to change anything tomorrow but in time those kinds of conversations matter much more than what people might say on Reddit. It's not either /or of course, but it's just not worth sweating your reviews. Finally the reasons people buy things are not what you might reasonably think! Ask Walter how he was able to compete successfully for so long as a one man band with Microsoft. I don't think his edge was in the beginning something calculated. Reasonable people may think marketing and biases don't apply to them but they do, it works without your consent. The thing is that we had a bubble in synthetic manufactured marketing. And now increasingly people are tired of that and seek what's authentic, real and that doesn't pretend to be perfect. That doesn't mean a bit of thought is a bad idea,just that it might matter less than you think that the D community isn't particularly interested in marketing. Sometimes one can see that hidden in what superficially seems to be a weakness is a strength.
Re: D compilation is too slow and I am forking the compiler
On Wednesday, 28 November 2018 at 13:05:34 UTC, Guillaume Piolat wrote: On Wednesday, 28 November 2018 at 12:48:46 UTC, Laeeth Isharc wrote: D isn't really marketed and it's definitely not sold. That's an implicit strategy in itself. What I see in my (absurdly competitive) market is that the people that truly do no-marketing tend to close shop, sometimes despite very competitive offerings. It colors my perception of course, since it can be very tempting to appeal to a limited pool of discerning customers; but that would mean death. What is the ratio of expenditure of your best customer to an average customer? Not much. That's one main reason why your intuition developed by organising your emotions according to your business domain fits this domain less. What is the ratio of expenditure of the biggest 'customer' of Python to the average 'customer'? Measured by resources lent to the community directly or indirectly, or by the wage bill of programmers at that firm working in Python this ratio is enormous.
Re: D compilation is too slow and I am forking the compiler
On Wednesday, 28 November 2018 at 13:30:37 UTC, Guillaume Piolat wrote: On Wednesday, 28 November 2018 at 12:48:46 UTC, Laeeth Isharc wrote: Nassim Taleb raises the question of how do you choose between two surgeons, both recommended. One looks the part and hangs his many certificates on his office wall. The other looks scruffy with the appearance of a tradesman. Who do you pick? Taleb says pick the guy who doesn't look the part because if he got there without signalling he must have something going for him. It's definately the kind of surgeon one should choose - programmers that are not necessarily well groomed etc.. - but is it the kind of surgeon people will actually recommend? I'm doubtful. If X has the social signalling then people will recommend X even without trying, because it's socially safe. If one doesn't have the signalling, I've found the hard way even supporters will hesitate a bit before making recommendations, because of the social standing _cost_ it may have. But then, perhaps recommendations don't matter, because opinions don't matter much? I think they matter to be even heard on public places. And I think early adopters need a nudge, the influent need to be bothered by less influents (influencers are not especially on the lookout for new options, as they are already influent). Above all I think the niche of early-adopters is smaller than the larger market for languages, and the early-adopters are going elsewhere. The innovator's dilemma, which is really an insight that dates back to Toynbee, and before that Ibn Khaldun, is not so obvious. I am not sure that you have understood it. I suggest reading the book if you are interested, but otherwise I unfortunately don't have so much time at the moment to try to persuade you of what this phenomenon is like and there's limited value to talking about talking rather than having a discussion based on a shared understanding of what this is about.
Re: DConf 2019: Shepherd's Pie Edition
On Saturday, 22 December 2018 at 18:47:40 UTC, Robert M. Münch wrote: On 2018-12-22 12:18:25 +, Mike Parker said: Thanks to Symmetry Investments, DConf is heading to London! We're still ironing out the details, but I've been sitting on this for weeks and, now that we have a venue, I just can't keep quiet about it any longer. Hi, you should consider the upcoming Brexit chaos, which is expect to have a high impact on all airlines. Currently I wouldn't bet that all parties involved get things sorted out until May... I would be happy to bet they do. The EU and US are already agreed. https://www.bbc.co.uk/news/business-46380463
Re: DConf 2019: Shepherd's Pie Edition
On Thursday, 27 December 2018 at 17:00:05 UTC, Robert M. Münch wrote: On 2018-12-22 21:38:42 +, Laeeth Isharc said: On Saturday, 22 December 2018 at 18:47:40 UTC, Robert M. Münch wrote: On 2018-12-22 12:18:25 +, Mike Parker said: Thanks to Symmetry Investments, DConf is heading to London! We're still ironing out the details, but I've been sitting on this for weeks and, now that we have a venue, I just can't keep quiet about it any longer. Hi, you should consider the upcoming Brexit chaos, which is expect to have a high impact on all airlines. Currently I wouldn't bet that all parties involved get things sorted out until May... I would be happy to bet they do. The EU and US are already agreed. https://www.bbc.co.uk/news/business-46380463 Well, we will see. But it's not the EU and US, but UK and US that agreed after your reference. Since I'm not from the US this information doesn't help a lot. And the significant part of your reference is this: "Theresa May's Brexit agreement with Brussels says that the UK and EU have agreed to negotiate a "comprehensive air transport agreement" for UK-EU flights during the planned transition period but it would not apply if the UK left the EU without a deal. In September the government warned a no-deal Brexit could cause disruption to air travel between the UK and European Union countries." You might be aware that the "No Deal Scenario" is currently much more likely... but again, everyone is free to do what they want. In the event of no-deal, flights will continue as before except UK operators flying _within_ Europe on domestic or intra-EU flights will need to get a license. UK operators can continue to fly to Europe, and we already said the European operators can fly here. This is a relatively recent official confirmation of what was always fairly obvious - a negotiating position is not quite the same thing as the position in actuality. http://www.travelweekly.co.uk/articles/319768/updated-european-commission-reiterates-flights-will-go-ahead-post-brexit You can read the technical guidance if you wish. Naturally it comes with the spin you would expect. And since flights to and from the EU will continue to operate, I doubt very much that flights between Britain and anywhere else will cease to operate. Britain has a current account deficit with every European nation bar Ireland and I think Malta, meaning we import more than we export. The wilder scenarios painted assume that one of the two parties would deliberately sabotage their own economy. I don't think so. I had lunch with a lawyer who advised Cameron and Osborne in their negotiations with the EU. He has written five books on Brexit, approaching it from a technical rather than political perspective. He pioneered the suggestion of enhanced equivalence which will likely be the roadmap for financial services. He says Brexit consists of a multitude of small problems which will have to be overcome by the people closest to them. But a no-deal Brexit would be fine and quite quickly rather positive. All of this stuff "if there is a no-deal Brexit, Theresa May _could_ run out of insulin" - that word could is like nasal demons in UB with C. It's a funny use of the word could - the lawyer called the insulin suggestion an insult to the intelligence. And my sister in law is a partner in a pharmaceutical regulatory firm here in Germany where I write from, and she agrees the suggestion is nonsense. There's a lot of such stuff about, generated for partisan reasons. The track record of such suggestions is pretty dire - both Mervyn King, former Governor of the Bank of England,and Paul Krugman, a former trade economist, haha, suggested that the Bank was damaging its reputation by making such political arguments. So it's best to go to the primary sources and technical documentation. There are more entertaining ways to scare oneself if that's what one wants. But flights will be running as good or bad as they ever do,as best I can tell.
Re: SDC-32bit
On Friday, 17 October 2014 at 18:47:54 UTC, Stefan Koch wrote: On Friday, 17 October 2014 at 10:39:15 UTC, Temtaime wrote: New backend why ? Because I want to code a backend. I want output C or maybe even Cool ... generating UML via a backend would also be nice. Congrats on the project - v impressive. How about Javascript or JSASM? So we can write D on the browser?
Re: Gary Willoughby: "Why Go's design is a disservice to intelligent programmers"
On Thursday, 26 March 2015 at 00:19:44 UTC, Jakob Ovrum wrote: As I know Gary is sometimes (often?) on these forums I'll post some critique here. Misrepresenting Go in a comparison with D doesn't reflect well on the D community, so please have a look at the following issues: You describe these as issues forming part of a critique and suggesting the substance of what he wrote is wrong, but are these substantive in the context of a quick blog post (where it is more important to say something generative than to be perfect in its expression). I don't claim to know Go, but is his basic point off the mark? In the first code example, the Go version returns 1 on failure and 0 on success, while the D version always returns 0. Also, the Go version correctly uses stderr for error messages while the D version uses stdout for everything. stderr.writeln(text); return 1; correctness is important, but does this change much? In the second example maybe you should print four lists to be equivalent of the Go code. I think it's misrepresentative to shorten the D example by making it do less work. surely people can see beyond a difference of three lines ? would this change his point? auto text = source.byLine.join.to!(string); This is not safe as byLine reuses the same buffer for every line. It may or may not work depending on join's implementation. Also, it's idiomatic to omit parantheses when a template argument list consists of a single token: source.byLine.join.to!string; fair point if true (I will let others who know better say whether .array. or something is needed). With all that said, I honestly think Go’s design a disservice to intelligent programmers. s/design a disservice/design is a disservice/ What he wrote is correct English, and he is an Englishman living in England. I guess by now Go programmers reading this will be frothing at the mouth >>shouting “Your doing it wrong!”. That could be misconstrued as a jab at the intelligence of Go programmers, which I don't think serves your cause. Again, nobody English would think this was more than mildly humorous (and by no means insulting). To suggest somebody is rabid is not to insult their intelligence, but merely to tease them about their likely strong emotional reaction. But what is one to do when making the trade-off between being blandly corporate and acceptable to everyone, versus writing with some character and spirit and offending the sensitive. It's a personal choice, but not easy to criticize another for theirs. I personally find the world too bland these days. One cannot police the forms of expression of people who do not speak for a community or claim to be acting as such (apologies if I am mistaken and he does have an official position within D). And perhaps one ought not to try. Laeeth.
Re: Gary Willoughby: "Why Go's design is a disservice to intelligent programmers"
That kind of articles are bad for the image of the D community Nick S: No. Just...no. I'm honestly *really* tired of general society's (seemingly?) increasing intolerance FOR intolerance. Some things ARE bad. Some ideas are dumb ideas (ie without merit). Some features are bad features. Some products really are crappy products. Calling it out when you see it, using a frank explanation of your reasoning, isn't bad, it's productive. Excellence is incompatible with tolerating mediocrity or what is appalling, and what I have seen is that there are aesthetic aspects to creative endeavours not conventionally thought of as having an aesthetic element, and it is in the nature of such things that one cannot and should not tolerate what one perceives to be ugly in a creative endeavour. If one is driven mostly by ROI rather than high feelings, one doesn't get to excellence. So it is my belief that dealing with creative people means dealing with a certain ... intensity. That (on the aesthetic aspects of technical fields) is not just my opinion, but also (I think) that of a certain Mr W Bright, judging by his comments on how good code should look and on good aircraft design, although he presented this in his usual low-key manner. I was looking for a language that was beautiful, as well as powerful, and for whatever it is worth, this was a factor of high appeal with D. It's also the view of Feynman, not to mention many great minds of the past. Ie it is limiting to insist on data before forming a strong opinion about something (which is not to say that one may not change one's mind in the face of contrary data). "You can recognize truth by its beauty and simplicity. When you get it right, it is obvious that it is right—at least if you have any experience—because usually what happens is that more comes out than goes in. ...The inexperienced, the crackpots, and people like that, make guesses that are simple, but you can immediately see that they are wrong, so that does not count. Others, the inexperienced students, make guesses that are very complicated, and it sort of looks as if it is all right, but I know it is not true because the truth always turns out to be simpler than you thought." - Feynman via Wikiquote (but the same idea comes across in his books). To discourage dissent, objections, or complaints is to rob ourselves of potential improvement. *That's* what critique and complaints and objections ARE: Recognition of the potential for improvement. There *cannot* be progress and improvement without first identifying existing faults. If nobody ever identified and voiced criticism of punchcards, for example, we'd all still be stuck in the world of 1950's computing. Excellently put. (And, I would add, a constructive draw towards what is generative - not just fault-finding). It's not as if "the D crowd" doesn't critique itself and it's own language just plenty, so it's not like there's any hypocrisy here. And I'm certainly not willing to accept that programmers should be viewed as being part of distinct mutually-exclusive factions based on some single-language allegiance. I'm a D guy. I also happen to be a fan of Nemerle. And both languages have things I hate. So scratch the "it's the D crowd" idea. Interesting - what should I read about Nemerle, and what is it best at ? And seriously, the article in question barely mentions D at all. So no, this is NOT some sort of "D community piece attacking another language" as some comments seem to imply. It is merely an isolated critique of one language by someone who happens to be *using* the given language. There are some very interesting psychological dynamics in the reaction to this kind of piece. For me it was key that although it was clearly written in a humorous tone, and hurriedly, he seemed to speak from the heart - it is refreshing to see such work even when one doesn't agree with it. BTW since when has linking to something been an endorsement of it?
Re: Gary Willoughby: "Why Go's design is a disservice to intelligent programmers"
On Thursday, 26 March 2015 at 19:37:30 UTC, Ola Fosheim Grøstad wrote: On Thursday, 26 March 2015 at 19:16:54 UTC, bachmeier wrote: You're making a big assumption about which programmers and projects count and which don't. I wonder if outside of Google It doesn't matter what the programmers think, what matters is how the development environment affects the project in measurable terms. Having all kinds of features does not necessarily benefit projects. That's the difference between a fun toy language and one aiming for production and maintenance. Programming is - for now - still a human activity, and what is important in human activities may not always be measured, and what may be easily measured is not always important. That doesn't mean one should throw away the profiler and go back to guessing, but it does suggest caution about adopting the prestigious techniques of the natural sciences and applying them to a domain where they don't necessarily fully belong. I say this as someone coming from the financial markets, where we have all experienced quite recently the effects of mistaking being quantitative for thinking soundly - what happened ought not to have been a surprise, and of those who saw 2008 coming and spoke publicly about it, I don't think a single one based their view on the quant especially. Yet the field of macroeconomics is much more fully developed than that of assessing programmer productivity and quality of output. It is not scientific to depend on an approach that has not yet proven itself in practical terms over the course of time and in different environments. http://en.wikipedia.org/wiki/Scientism http://plato.stanford.edu/entries/feyerabend/ Laeeth.
Re: Gary Willoughby: "Why Go's design is a disservice to intelligent programmers"
On Friday, 27 March 2015 at 04:35:17 UTC, Walter Bright wrote: On 3/26/2015 8:53 PM, Laeeth Isharc wrote: It's also the view of Feynman, not to mention many great minds of the past. Ie it is limiting to insist on data before forming a strong opinion about something (which is not to say that one may not change one's mind in the face of contrary data). Feynman's books are all worth reading, even if you have no interest in physics. His attitude about things is just a marvel. I once had a roundtable discussion with the question "if you could resurrect any historical figure, who would it be?" I nominated Feynman, and that pretty much ended the discussion :-) nobody could think of anyone more appropriate. So yeah, I definitely take inspiration from him. Richard P. Feynman “Well, Mr. Frankel, who started this program, began to suffer from the computer disease that anybody who works with computers now knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is you *play* with them. They are so wonderful. You have these switches - if it's an even number you do this, if it's an odd number you do that - and pretty soon you can do more and more elaborate things if you are clever enough, on one machine. After a while the whole system broke down. Frankel wasn't paying any attention; he wasn't supervising anybody. The system was going very, very slowly - while he was sitting in a room figuring out how to make one tabulator automatically print arc-tangent X, and then it would start and it would print columns and then bitsi, bitsi, bitsi, and calculate the arc-tangent automatically by integrating as it went along and make a whole table in one operation. Absolutely useless. We *had* tables of arc-tangents. But if you've ever worked with computers, you understand the disease - the *delight* in being able to see how much you can do. But he got the disease for the first time, the poor fellow who invented the thing.” ― Richard P. Feynman, Surely You're Joking, Mr. Feynman!: Adventures of a Curious Character tags: computers, humor, programming ;)
