Re: Near-simplest route to learn D
On 5/12/21 12:37 PM, Berni44 wrote: > Even if it is a few years old, I would still use the book from Ali. Most > is still valid and maybe, the online version is even updated Yes, the online version is more up-to-date than the print version. (By the way, the more-up-to-date online PDF is what would go to the printer anyway. I am to blame for not followin up on that.) The book is behind a little bit but there is nothing that's horribly wrong. I can think of post-blit as being out-of-date because I should have replaced it with copy constructors, which D gained more recently. Ali
Re: Near-simplest route to learn D
On Wednesday, 12 May 2021 at 18:37:55 UTC, NonNull wrote: Some documents/books seem to be out of date. If an intuitive person competent in several other programming languages and in abstract reasoning wanted to take the fastest route to learn pretty much the whole of D as it stands now, having already learned and used a core of the language, what is the best way to proceed? And how long would this likely take? Even if it is a few years old, I would still use the book from Ali. Most is still valid and maybe, the online version is even updated, but I'm not sure on this. A completely other approach is to try to help fixing bugs. I learned a lot about D, when I started doing so. I don't know, if that is, what you wanted to hear, but I thought, it wont hurt telling you. :-)
Near-simplest route to learn D
Hello, Some documents/books seem to be out of date. If an intuitive person competent in several other programming languages and in abstract reasoning wanted to take the fastest route to learn pretty much the whole of D as it stands now, having already learned and used a core of the language, what is the best way to proceed? And how long would this likely take?
Re: Good repos to learn D
On Saturday, 19 September 2020 at 08:26:36 UTC, Imperatorn wrote: What are some good examples of pretty large/medium size, good structured repos in D? I'm looking for examples to learn from Thanks! I would include vibe.d in there of course! https://github.com/vibe-d/vibe.d Some legacy cruft regarding the module separation, but otherwise really solid and tons of stuff just working.
Re: Good repos to learn D
On Saturday, 19 September 2020 at 08:26:36 UTC, Imperatorn wrote: What are some good examples of pretty large/medium size, good structured repos in D? I'm looking for examples to learn from Thanks! I often looked into the D std source code: C:\D\dmd2\src\phobos\std
Re: Good repos to learn D
On Sunday, 20 September 2020 at 04:27:59 UTC, H. S. Teoh wrote: On Sat, Sep 19, 2020 at 08:26:36AM +, Imperatorn via Digitalmars-d-learn wrote: What are some good examples of pretty large/medium size, good structured repos in D? I'm looking for examples to learn from [...] Phobos itself. I have to say, it's the most readable programming language standard library that I've come across. I've tried to read glibc code before, and I will never ever do that again(!). Phobos, by contrast, is a pleasure to read (except for a small number of dark corners). T Thanks! I'll take a look 🌈
Re: Good repos to learn D
On Sat, Sep 19, 2020 at 08:26:36AM +, Imperatorn via Digitalmars-d-learn wrote: > What are some good examples of pretty large/medium size, good > structured repos in D? I'm looking for examples to learn from [...] Phobos itself. I have to say, it's the most readable programming language standard library that I've come across. I've tried to read glibc code before, and I will never ever do that again(!). Phobos, by contrast, is a pleasure to read (except for a small number of dark corners). T -- Unix was not designed to stop people from doing stupid things, because that would also stop them from doing clever things. -- Doug Gwyn
Re: Good repos to learn D
On Saturday, 19 September 2020 at 13:13:58 UTC, Jacob Carlborg wrote: On Saturday, 19 September 2020 at 08:26:36 UTC, Imperatorn wrote: [...] Here are some examples of large projects: [...] Thanks, I'll check them out! /Forsberg
Re: Good repos to learn D
On Saturday, 19 September 2020 at 08:26:36 UTC, Imperatorn wrote: What are some good examples of pretty large/medium size, good structured repos in D? I'm looking for examples to learn from Thanks! Here are some examples of large projects: * DWT [1]. This is one of the largest D projects I'm aware of. It's a port from Java so it's structured like a Java project. I think it works pretty well for D projects as well. But it's not common to have the reverse domain name package structure like in Java. It's more common to have the top level package be named after the project. * Mecca [2]. This one is not as large as DWT, but I think it nicely shows how to separate the platform specific code from the platform independent code. Instead of having `version` statements sprinkled all over the code most platform specific code is located in the `platform` packages. Then it provides a common interface that is used by the rest of the project. * Ocean [3]. This one is quite large as well. [1] https://github.com/d-widget-toolkit/dwt [2] https://github.com/weka-io/mecca [3] https://github.com/sociomantic-tsunami/ocean -- /Jacob Carlborg
Good repos to learn D
What are some good examples of pretty large/medium size, good structured repos in D? I'm looking for examples to learn from Thanks!
Re: To learn D
On Friday, 5 July 2019 at 13:56:18 UTC, Craig Dillabaugh wrote: Ali's book is targeted at beginners (see link below). I don't see why D wouldn't make a good first language. If your objective is to learn D, then I don't think learning C or Python is going to be help that much. Obviously if you know C/Python you can learn D more quickly, but I doubt the effort is worth it if D is the ultimate goal. http://ddili.org/ders/d.en/index.html I will second Craig's recommendation to spend some time going through Ali's book. It strikes a good balance between being an introduction to programming in general, and to D in particular. While I have dabbled in half a dozen languages or so over the years, I find D to be a lot more accessible than many of the other languages I've tried. Part of that comes do the language design (similarities to C and Python) but mostly to the helpful community you will find here. Good luck!
Re: To learn D
On Friday, 5 July 2019 at 12:00:15 UTC, Binarydepth wrote: I've considering learning full D. I remembered that D is not recommended as a first language, So I read time ago. So my question, is learning C and Python a good intro before learning D? TY Ali's book is targeted at beginners (see link below). I don't see why D wouldn't make a good first language. If your objective is to learn D, then I don't think learning C or Python is going to be help that much. Obviously if you know C/Python you can learn D more quickly, but I doubt the effort is worth it if D is the ultimate goal. http://ddili.org/ders/d.en/index.html
Re: To learn D
On Friday, 5 July 2019 at 12:00:15 UTC, Binarydepth wrote: I've considering learning full D. I remembered that D is not recommended as a first language, So I read time ago. So my question, is learning C and Python a good intro before learning D? TY Both C and Python provide valuable and complementary experience no matter what you want to do. If your goal is specifically to learn D then I'd learn C up to structures. That way you'll have basic tools and vocabulary that you can reuse in D and you can learn the rest as you go. The things that will be hard if you want to learn D directly: - not as many examples and tutorials on the internet (although there are some very good ones) - lots of concepts and vocabulary (always remember that you *don't* have to know every detail of the language, learn what you need to solve the problem at hand, one thing at a time) - not as many libraries, which means that it can be harder to solve a problem that not many people have had yet (popular things like web applications will be alright) I think D isn't that bad of a first language. Once you've passed the vocabulary barrier you'll get the benefit of having a language that'll fit most of your tasks from little scripting or web applications to low-level programming and big projects. You will be confronted to many concepts and ideas without having to learn a new language each time and this knowledge is useful even if you decide to use another language later on.
To learn D
I've considering learning full D. I remembered that D is not recommended as a first language, So I read time ago. So my question, is learning C and Python a good intro before learning D? TY
Re: Keen to learn D
On Sunday, 4 September 2016 at 20:12:09 UTC, Abhishek Mishra wrote: Hi! I am a newbie and I would like to know more about D language. I have prior knowledge of C++(12th Grade/ Pre-University College Level). How should I start? What more do I need to learn. Thanks in advance. :) in addition to the link already provided by others https://p0nce.github.io/d-idioms/ is a useful list of the way things are done in d, and other insights.
Re: Keen to learn D
On Sunday, 4 September 2016 at 20:12:09 UTC, Abhishek Mishra wrote: Hi! I am a newbie and I would like to know more about D language. I have prior knowledge of C++(12th Grade/ Pre-University College Level). How should I start? What more do I need to learn. Thanks in advance. :) Ali's book can be viewed online (or purchased) and it makes for a good introduction to the language. http://ddili.org/ders/d.en/index.html There are three other D books that you'd need to purchase, and they walk you through practical examples, allowing you to see the language in action. They are D Cookbook https://www.packtpub.com/application-development/d-cookbook Learning D https://www.packtpub.com/application-development/learning-d D Web Development https://www.packtpub.com/web-development/d-web-development And of course there is always looking at a project that does something you find interesting, which you can find at http://code.dlang.org/
Re: Keen to learn D
You should take a look at this: http://tour.dlang.io/
Keen to learn D
Hi! I am a newbie and I would like to know more about D language. I have prior knowledge of C++(12th Grade/ Pre-University College Level). How should I start? What more do I need to learn. Thanks in advance. :)
Re: I'll like to learn D
On Saturday, 19 September 2015 at 17:42:50 UTC, uNknow123 wrote: On Saturday, 19 September 2015 at 15:09:38 UTC, WhatMeWorry wrote: On Saturday, 19 September 2015 at 13:41:03 UTC, uNknow123 wrote: Hi! I'll like to learn D Lang. I knew some Pawn, it is pretty similar, but not so similar, if you understan me. In Pawn we have to write just some words, and the Plugin is done, why Plugin, 'cuse Pawn = Scripting for Cs 1.6 and Sa:Mp. So, I am a rookie, can you help me please? That is a very open ended question. I'd start with http://ddili.org/ders/d.en/index.html It will get your feet wet and you can wade in as deep as you want. Thanks man, and there is'nt any interactive website?! Like CodeAcademy just for be a better proggramer, thanks anyway man! I'll read that book! http://www.tutorialspoint.com/d_programming/index.htm
Re: I'll like to learn D
On Saturday, 19 September 2015 at 15:09:38 UTC, WhatMeWorry wrote: On Saturday, 19 September 2015 at 13:41:03 UTC, uNknow123 wrote: Hi! I'll like to learn D Lang. I knew some Pawn, it is pretty similar, but not so similar, if you understan me. In Pawn we have to write just some words, and the Plugin is done, why Plugin, 'cuse Pawn = Scripting for Cs 1.6 and Sa:Mp. So, I am a rookie, can you help me please? That is a very open ended question. I'd start with http://ddili.org/ders/d.en/index.html It will get your feet wet and you can wade in as deep as you want. Thanks man, and there is'nt any interactive website?! Like CodeAcademy just for be a better proggramer, thanks anyway man! I'll read that book!
Re: I'll like to learn D
On Saturday, 19 September 2015 at 13:41:03 UTC, uNknow123 wrote: Hi! I'll like to learn D Lang. I knew some Pawn, it is pretty similar, but not so similar, if you understan me. In Pawn we have to write just some words, and the Plugin is done, why Plugin, 'cuse Pawn = Scripting for Cs 1.6 and Sa:Mp. So, I am a rookie, can you help me please? That is a very open ended question. I'd start with http://ddili.org/ders/d.en/index.html It will get your feet wet and you can wade in as deep as you want.
I'll like to learn D
Hi! I'll like to learn D Lang. I knew some Pawn, it is pretty similar, but not so similar, if you understan me. In Pawn we have to write just some words, and the Plugin is done, why Plugin, 'cuse Pawn = Scripting for Cs 1.6 and Sa:Mp. So, I am a rookie, can you help me please?
Re: Novice web developer trying to learn D
On Monday, 8 September 2014 at 21:17:40 UTC, ketmar via Digitalmars-d-learn wrote: On Mon, 08 Sep 2014 21:05:53 + Gary Willoughby via Digitalmars-d-learn wrote: I would agree but that little C book is an amazing read and full of valuable lessons. and pointer arithmetic, and memory leaks, and zero-terminated strings, and writing generic algoritms with ugly casting, and... bad habits die hard. Maybe only to know, what to avoid. https://github.com/D-Programming-Language/phobos/pull/2459 But books on D can already propose a good programming style. That should be enough. Also it can be better for a php programmer to start with high level D and go lower if and as needed.
Re: Novice web developer trying to learn D
On Monday, 8 September 2014 at 20:58:20 UTC, ketmar via Digitalmars-d-learn wrote: On Mon, 08 Sep 2014 20:47:19 + AsmMan via Digitalmars-d-learn wrote: Before go to D I recomend you to take a look at the C programming language (as Gary Willoughby already mentioned). I think it's really fundamental. do you really want him to drop programming? there is no need to start with "Ford Model T" to drive "Lamborghini Estoque". *conceptions* are fundamental, not languages. and D is much better starting point than C. i know it, i have almost two decades of C expirience. +1 If you really want background before moving on to D, go with assembly instead. C is no more a prerequisite for D than is lambda calculus.
Re: Novice web developer trying to learn D
On Mon, 08 Sep 2014 21:05:53 + Gary Willoughby via Digitalmars-d-learn wrote: > I would agree but that little C book is an amazing read and full > of valuable lessons. and pointer arithmetic, and memory leaks, and zero-terminated strings, and writing generic algoritms with ugly casting, and... bad habits die hard. signature.asc Description: PGP signature
Re: Novice web developer trying to learn D
On Monday, 8 September 2014 at 20:58:20 UTC, ketmar via Digitalmars-d-learn wrote: On Mon, 08 Sep 2014 20:47:19 + AsmMan via Digitalmars-d-learn wrote: Before go to D I recomend you to take a look at the C programming language (as Gary Willoughby already mentioned). I think it's really fundamental. do you really want him to drop programming? there is no need to start with "Ford Model T" to drive "Lamborghini Estoque". *conceptions* are fundamental, not languages. and D is much better starting point than C. i know it, i have almost two decades of C expirience. I would agree but that little C book is an amazing read and full of valuable lessons.
Re: Novice web developer trying to learn D
On Mon, 08 Sep 2014 20:47:19 + AsmMan via Digitalmars-d-learn wrote: > Before go to D I recomend you to take a look at the C programming > language (as Gary Willoughby already mentioned). I think it's > really fundamental. do you really want him to drop programming? there is no need to start with "Ford Model T" to drive "Lamborghini Estoque". *conceptions* are fundamental, not languages. and D is much better starting point than C. i know it, i have almost two decades of C expirience. signature.asc Description: PGP signature
Re: Novice web developer trying to learn D
On Sunday, 7 September 2014 at 21:06:48 UTC, zuzuleinen wrote: Hello, First, here is my Linkedin profile http://www.linkedin.com/in/andreiboar in order to make an image of my professional background. I do realise here are really good programmers for which this background might sound like a joke, but this is what I did so far. After watching some presentantions from DConf, and trying the language I decided to give it a try in the future. Currrently I'm reading the Programming in D book by Ali Çehreli, and then The D Programming Language by Andrei Alexandrescu in order to learn more. The reason I post this is to ask you what other books do you think I should try in order to become hireable in the next 2 years? As a web developer I know I lack a lot of information, but I'm willing to do the hard work. So if anyone has any other books/things I need to know and is willing to make me like a small roadmap to become a good D developer I would really appreciate. Thanks a lot, Andrei Before go to D I recomend you to take a look at the C programming language (as Gary Willoughby already mentioned). I think it's really fundamental.
Re: Novice web developer trying to learn D
Thank you all for all your suggestions, I really appreciate them :) Now it's time to dive in, you gave me good resources :)
Re: Novice web developer trying to learn D
On Sunday, 7 September 2014 at 21:06:48 UTC, zuzuleinen wrote: Hello, First, here is my Linkedin profile http://www.linkedin.com/in/andreiboar in order to make an image of my professional background. I do realise here are really good programmers for which this background might sound like a joke, but this is what I did so far. After watching some presentantions from DConf, and trying the language I decided to give it a try in the future. Currrently I'm reading the Programming in D book by Ali Çehreli, and then The D Programming Language by Andrei Alexandrescu in order to learn more. The reason I post this is to ask you what other books do you think I should try in order to become hireable in the next 2 years? As a web developer I know I lack a lot of information, but I'm willing to do the hard work. So if anyone has any other books/things I need to know and is willing to make me like a small roadmap to become a good D developer I would really appreciate. Thanks a lot, Andrei Hi and welcome. I find it great that you want to learn and grow as a developer, many web devs don't and yet still think they're awesome. Using a language like D is a complete departure from what you've been doing so far because it compiles to native code and with that brings quite a few things to learn. So where to start. First, i would take time to learn about pointers. These are pretty fundamental when dealing with native code and there's no real way of getting around that. Here's a five minute guide: http://denniskubes.com/2012/08/16/the-5-minute-guide-to-c-pointers/ After that i would probably familiarise myself with the compiler and linker: http://dlang.org/dmd-windows.html http://dlang.org/dmd-linux.html http://www.lurklurk.org/linkers/linkers.html You're already reading Ali's and Andrei's books so that's good. Try reading the phobos documentation to familiarise yourself with the library: http://dlang.org/phobos/index.html Maybe controversial but i would also consider reading the C book for a good grounding in pointers and memory allocation, etc. A lot of this is relevant in D. http://en.wikipedia.org/wiki/The_C_Programming_Language It's nice to know these basics and you'll appreciate D a whole lot more coming from C. ;) Remember to ask questions here as you go.
Re: Novice web developer trying to learn D
On Sunday, 7 September 2014 at 21:06:48 UTC, zuzuleinen wrote: The reason I post this is to ask you what other books do you think I should try in order to become hireable in the next 2 years? See http://forum.dlang.org/thread/sgtnnyvmhxzexupgw...@forum.dlang.org
Re: Novice web developer trying to learn D
On Sunday, 7 September 2014 at 21:06:48 UTC, zuzuleinen wrote: Hello, First, here is my Linkedin profile http://www.linkedin.com/in/andreiboar in order to make an image of my professional background. I do realise here are really good programmers for which this background might sound like a joke, but this is what I did so far. After watching some presentantions from DConf, and trying the language I decided to give it a try in the future. Currrently I'm reading the Programming in D book by Ali Çehreli, and then The D Programming Language by Andrei Alexandrescu in order to learn more. The reason I post this is to ask you what other books do you think I should try in order to become hireable in the next 2 years? As a web developer I know I lack a lot of information, but I'm willing to do the hard work. So if anyone has any other books/things I need to know and is willing to make me like a small roadmap to become a good D developer I would really appreciate. Thanks a lot, Andrei I would also recommend for you to investigate my work on: Cmsed[0] Dakka[1] Dvorm[2] livereload[3] skeleton[4] Please note next version of Cmsed which will support livereload/skeleton/Dakka is currently not ready to go on github. [0] https://github.com/rikkimax/Cmsed [1] https://github.com/rikkimax/dakka [2] https://github.com/rikkimax/Dvorm [3] https://github.com/rikkimax/livereload [4] https://github.com/rikkimax/skeleton
Re: Novice web developer trying to learn D
There's Adam Ruppe's excellent "D Cookbook" available here: https://www.packtpub.com/application-development/d-cookbook And since you specifically said "web developer" I hope you're looking at vibe.d: http://vibed.org/
Novice web developer trying to learn D
Hello, First, here is my Linkedin profile http://www.linkedin.com/in/andreiboar in order to make an image of my professional background. I do realise here are really good programmers for which this background might sound like a joke, but this is what I did so far. After watching some presentantions from DConf, and trying the language I decided to give it a try in the future. Currrently I'm reading the Programming in D book by Ali Çehreli, and then The D Programming Language by Andrei Alexandrescu in order to learn more. The reason I post this is to ask you what other books do you think I should try in order to become hireable in the next 2 years? As a web developer I know I lack a lot of information, but I'm willing to do the hard work. So if anyone has any other books/things I need to know and is willing to make me like a small roadmap to become a good D developer I would really appreciate. Thanks a lot, Andrei
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
On Thu, 01 May 2014 09:56:49 +0100, FrankLike <1150015...@qq.com> wrote: On Monday, 14 April 2014 at 17:13:56 UTC, FrankLike wrote: My advice - use ODBC, it is the fastest way you may connect to the SQL server, and you already have everything you need for that. :) Regards I have test the d\dmd2\windows\lib\odbc32.lib,the size is 4.5kb, I test it by test.d(build :dmd test.d) but find the error: Error 42:Symbol Undefined _SQLFreeHandle@8 Error 42:Symbol Undefined _SQLSetEnvAttr@16 Error 42:Symbol Undefined _SQLAllocHandle@12 Error 42:Symbol Undefined _SQLGetDiagRec@32 -- errorlevel 4 I have fixed the errors. The exe file only 210kb,it works very good. Where the errors is ? In the odbc32.def file. must set the all used function names. such as: _SQLFreeHandle@8 = SQLFreeHandle That's interesting. Those functions are _stdcall, so should be exported from the lib as _@. How did you declare them in arsd.mssql? You should use extern(Windows) e.g. extern(Windows) SQLRETURN SQLFreeHandle(SQLSMALLINT HandleType, SQLHANDLE Handle); The extern(Windows) tells DMD to look for _stdcall. extern(C) tells it to look for _cdecl. The difference boils down to who is responsible for cleaning up the stack after a function call. _stdcall assumes the callee will cleanup the stack, _cdecl assumes the caller will. R -- Using Opera's revolutionary email client: http://www.opera.com/mail/
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
On Monday, 14 April 2014 at 17:13:56 UTC, FrankLike wrote: My advice - use ODBC, it is the fastest way you may connect to the SQL server, and you already have everything you need for that. :) Regards I have test the d\dmd2\windows\lib\odbc32.lib,the size is 4.5kb, I test it by test.d(build :dmd test.d) but find the error: Error 42:Symbol Undefined _SQLFreeHandle@8 Error 42:Symbol Undefined _SQLSetEnvAttr@16 Error 42:Symbol Undefined _SQLAllocHandle@12 Error 42:Symbol Undefined _SQLGetDiagRec@32 -- errorlevel 4 I have fixed the errors. The exe file only 210kb,it works very good. Where the errors is ? In the odbc32.def file. must set the all used function names. such as: _SQLFreeHandle@8 = SQLFreeHandle Ok. Frank.
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
There is another option. Using OpenDBX[0]. My binding here[1]. Its not exactly tested but since OpenDBX is a c library there shouldn't be any issues as long as you can grab the appropriate shared library version. [0] http://www.linuxnetworks.de/doc/index.php/OpenDBX/Support [1] https://github.com/rikkimax/Derelict_Extras---OpenDBX Hi,Rikki Cattermole, Thank you,very much. It's a very good work. Frank.
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
On Monday, 14 April 2014 at 15:21:33 UTC, FrankLike wrote: Hello,everyone: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D? So lots of people want to use D,who can help them? They want to connect MS SQL Server in D,then they will connect other DataBase, because it's a good idea that nice thing come from the small and familiar things always. Sql driver or ODBC driver, for win7 in D, who can help them? Thank you,everyone. There is another option. Using OpenDBX[0]. My binding here[1]. Its not exactly tested but since OpenDBX is a c library there shouldn't be any issues as long as you can grab the appropriate shared library version. [0] http://www.linuxnetworks.de/doc/index.php/OpenDBX/Support [1] https://github.com/rikkimax/Derelict_Extras---OpenDBX
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
First thing a D programmer MUST do is 1) To port FreeTDS to D, or write a binding/wrapper for it (should not be too difficult). or 2) Use ODBC directly, or maybe also write some wrapper around it. or 3) Implement D connector to MS SQL server directly (I would advise against that, such project would probably be 10x bigger than the DMD project itself) My advice - use ODBC, it is the fastest way you may connect to the SQL server, and you already have everything you need for that. :) Regards Thank you. 1) I have used the binding/wrapper for FreeTDS,I have tested , but can't get the OMF lib,and can't get the ctlib's dll,so no end. 2) I test the ODBC32 ON WIN7,but not have the right OMF lib, I test the implib , but do not get the right OMF lib ,then I not get any thing. Maybe my implib tool is error? The implib tool's created time is 2000-05-05,I know it's old,but I can't get any lastest. Hope you can help to me, Thank again.
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
My advice - use ODBC, it is the fastest way you may connect to
the SQL server, and you already have everything you need for
that. :)
Regards
I have test the d\dmd2\windows\lib\odbc32.lib,the size is 4.5kb,
I test it by test.d(build :dmd test.d)
but find the error:
Error 42:Symbol Undefined _SQLFreeHandle@8
Error 42:Symbol Undefined _SQLSetEnvAttr@16
Error 42:Symbol Undefined _SQLAllocHandle@12
Error 42:Symbol Undefined _SQLGetDiagRec@32
-- errorlevel 4
build mssql.lib :dmd -lib mssql.d database.d -Itrunk/win32/sql.d
-Itrunk/win32/sqlext.d -IODBC32.lib -Iwin32.lib
build test.exe :dmd test.d
-module test.d
module test;
import std.stdio;
import arsd.mssql;
pragma(lib,"mssql");
void main() {
try{
//auto db = new MsSql("Driver={SQL
Server};Server=[\\]>;Database=dbtest;Trusted_Connection=Yes");
auto db = new MsSql("Driver={SQL Server Native Client
10.0};Server=127.0.0.1;Database=test;Trusted_Connection=Yes");
//db.query("INSERT INTO users (id, name) values (30, 'hello
mang')");
db.query("SELECT top 10 * FROM testa");
}
catch(Exception e){
auto f = new File("err.text","w");
scope(exit)f.close();
f.writeln(e.info);
}
}
module
mssql.d---
// NOTE: I haven't even tried to use this for a test yet!
// It's probably godawful, if it works at all.
module arsd.mssql;
pragma(lib, "odbc32");
public import arsd.database;
import std.string;
import std.exception;
import win32.sql;
import win32.sqlext;
class MsSql : Database {
// dbname = name is probably the most common connection string
this(string connectionString) {
SQLAllocHandle(SQL_HANDLE_ENV, cast(void*)SQL_NULL_HANDLE,
&env);
enforce(env !is null);
scope(failure)
SQLFreeHandle(SQL_HANDLE_ENV, env);
SQLSetEnvAttr(env, SQL_ATTR_ODBC_VERSION, cast(void *)
SQL_OV_ODBC3, 0);
SQLAllocHandle(SQL_HANDLE_DBC, env, &conn);
scope(failure)
SQLFreeHandle(SQL_HANDLE_DBC, conn);
enforce(conn !is null);
auto ret = SQLDriverConnect(
conn, null, cast(ubyte*)connectionString.ptr, SQL_NTS,
null, 0, null,
SQL_DRIVER_NOPROMPT );
if ((ret != SQL_SUCCESS_WITH_INFO) && (ret != SQL_SUCCESS))
throw new DatabaseException("Unable to connect to ODBC object:
" ~ getSQLError(SQL_HANDLE_DBC, conn)); // FIXME: print error
//query("SET NAMES 'utf8'"); // D does everything with utf8
}
~this() {
SQLDisconnect(conn);
SQLFreeHandle(SQL_HANDLE_DBC, conn);
SQLFreeHandle(SQL_HANDLE_ENV, env);
}
override void startTransaction() {
query("START TRANSACTION");
}
ResultSet queryImpl(string sql, Variant[] args...) {
sql = escapedVariants(this, sql, args);
// this is passed to MsSqlResult to control
SQLHSTMT statement;
auto returned = SQLAllocHandle(SQL_HANDLE_STMT, conn,
&statement);
enforce(returned == SQL_SUCCESS);
returned = SQLExecDirect(statement, cast(ubyte*)sql.ptr,
SQL_NTS);
if(returned != SQL_SUCCESS)
throw new DatabaseException(error());
return new MsSqlResult(statement);
}
string escape(string sqlData) { // FIXME
return ""; //FIX ME
//return ret.replace("'", "''");
}
string error() {
return null; // FIXME
}
private:
SQLHENV env;
SQLHDBC conn;
}
class MsSqlResult : ResultSet {
// name for associative array to result index
int getFieldIndex(string field) {
if(mapping is null)
makeFieldMapping();
if (field !in mapping)
return -1;
return mapping[field];
}
string[] fieldNames() {
if(mapping is null)
makeFieldMapping();
return columnNames;
}
// this is a range that can offer other ranges to access it
bool empty() {
return isEmpty;
}
Row front() {
return row;
}
void popFront() {
if(!isEmpty)
fetchNext;
}
int length()
{
return 1; //FIX ME
}
this(SQLHSTMT statement) {
this.statement = statement;
SQLSMALLINT info;
SQLNumResultCols(statement, &info);
numFields = info;
fetchNe
Re: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
On Monday, 14 April 2014 at 15:21:33 UTC, FrankLike wrote: Hello,everyone: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D? So lots of people want to use D,who can help them? They want to connect MS SQL Server in D,then they will connect other DataBase, because it's a good idea that nice thing come from the small and familiar things always. Sql driver or ODBC driver, for win7 in D, who can help them? Thank you,everyone. First thing a D programmer MUST do is 1) To port FreeTDS to D, or write a binding/wrapper for it (should not be too difficult). or 2) Use ODBC directly, or maybe also write some wrapper around it. or 3) Implement D connector to MS SQL server directly (I would advise against that, such project would probably be 10x bigger than the DMD project itself) My advice - use ODBC, it is the fastest way you may connect to the SQL server, and you already have everything you need for that. :) Regards
A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D?
Hello,everyone: A lot of people want to use D,but they only know MS SQL Server,what will help them to Learn D? So lots of people want to use D,who can help them? They want to connect MS SQL Server in D,then they will connect other DataBase, because it's a good idea that nice thing come from the small and familiar things always. Sql driver or ODBC driver, for win7 in D, who can help them? Thank you,everyone.
Re: Is it reasonable to learn D
On 2011-06-07 23:33, Jonathan M Davis wrote: On 2011-06-07 14:02, Fabian wrote: The community does not grow if people stay away because it is small. Thank you for your answer. - You've got a big point! I don't know about this but I think QtD and DWT are still being maintained? I can't see any changes on this web page: http://www.dsource.org/projects/dwt/wiki That's too bad :-( http://hg.dsource.org/projects/dwt2 DWT was recently ported to D2. Also, QtD is definitely under active development. But I'm sure that there's still plenty of work to be done. - Jonathan M Davis There is a lot of work to be done (for DWT) : * Fixing bugs * Finish porting the Mac version * Update to later versions of SWT * Port 64bit versions -- /Jacob Carlborg
Re: Is it reasonable to learn D
On 2011-06-07 23:02, Fabian wrote: > The community does not grow if people stay away because it is small. Thank you for your answer. - You've got a big point! > I don't know about this but I think QtD and DWT are still being > maintained? I can't see any changes on this web page: http://www.dsource.org/projects/dwt/wiki There's currently no reason to update the wiki, please see http://hg.dsource.org/projects/dwt2 for changelog. -- /Jacob Carlborg
Re: Is it reasonable to learn D
On 2011-06-07 22:45, Timon Gehr wrote: Fabian wrote: - There are no maintained GUI libraries I don't know about this but I think QtD and DWT are still being maintained? DWT is still maintained, although very slowly. -- /Jacob Carlborg
Re: Is it reasonable to learn D
Too late! :P I have been inspired by the simplicity of D and DGui. Never happened before with earlier C++ experiments... my loss! "Jose Armando Garcia" wrote in message news:mailman.906.1308016642.14074.digitalmars-d-le...@puremagic.com... On Mon, Jun 13, 2011 at 6:33 AM, Lloyd Dupont wrote: Let's learn together then! :P http://galador.net/codeblog/?tag=/D While my blog post are only about setting up the environment so far.. I have delved in the code for 2 weeks now! (Although I had some day off (work and programing) in Darwin) I'm right into it now, should have a new blog post soon! About programing this time! My verdict: it's frustrating yes. But D has a couple of advantages and 2 that you might like: - D has event / delegate, just like C# (and unlike C++, or maybe C++ has them, (it has method pointer, right!?) but it's not taken advantage of!) - the above point is probably what makes the C++ GUI so... difficult. Whereas I found a GUI API for D just like WinForm! (DGui!) Boost, GTK+ and QT have signals. E.g. http://www.boost.org/doc/libs/1_46_1/doc/html/signals.html
Re: Is it reasonable to learn D
On Mon, Jun 13, 2011 at 6:33 AM, Lloyd Dupont wrote: > Let's learn together then! :P > http://galador.net/codeblog/?tag=/D > > While my blog post are only about setting up the environment so far.. I have > delved in the code for 2 weeks now! (Although I had some day off (work and > programing) in Darwin) I'm right into it now, should have a new blog post > soon! About programing this time! > > My verdict: it's frustrating yes. But D has a couple of advantages and 2 > that you might like: > - D has event / delegate, just like C# (and unlike C++, or maybe C++ has > them, (it has method pointer, right!?) but it's not taken advantage of!) > - the above point is probably what makes the C++ GUI so... difficult. > Whereas I found a GUI API for D just like WinForm! (DGui!) > Boost, GTK+ and QT have signals. E.g. http://www.boost.org/doc/libs/1_46_1/doc/html/signals.html
Re: Is it reasonable to learn D
Let's learn together then! :P http://galador.net/codeblog/?tag=/D While my blog post are only about setting up the environment so far.. I have delved in the code for 2 weeks now! (Although I had some day off (work and programing) in Darwin) I'm right into it now, should have a new blog post soon! About programing this time! My verdict: it's frustrating yes. But D has a couple of advantages and 2 that you might like: - D has event / delegate, just like C# (and unlike C++, or maybe C++ has them, (it has method pointer, right!?) but it's not taken advantage of!) - the above point is probably what makes the C++ GUI so... difficult. Whereas I found a GUI API for D just like WinForm! (DGui!) In short summary I found these cool things: VisualD 0.3.24 (plugin for programing from Visual Studio) http://www.dsource.org/projects/visuald VisualD NOTE: (system tweaks)(required) : edit sc.ini http://www.dsource.org/projects/visuald/wiki/KnownIssues#Librarysearchpathnotpassedtolinker DGui 02052011 (WinForm like API) http://code.google.com/p/dgui/ Doost (r88) (serialization) http://www.dsource.org/projects/doost Windows API r371 http://dsource.org/projects/bindings/wiki/WindowsApi "Fabian" wrote in message news:islvgf$1b61$1...@digitalmars.com... Dear D Community, is it reasonable to learn D? I've found a lot of good points for D but I've found a lot of negative points too. I believe that I needn't to list all the point for D but I want to give a few examples against learning D I've read in some German and English boards: - The D compiler has only bad code optimization - There are no maintained GUI libraries - The development of the compiler is very slow - Only a small community => no real German community So I ask you - Is it reasonable to learn D? I'm looking forward to your answers. Greetings Fabian PS: If you want to contact me you are allowed to write an Email to me. contact-...@freemail.de
Re: Is it reasonable to learn D
Trass3r Wrote: > >> http://h3.gd/code/nucleus/ > > > > I lol'd at the suggestion to upgrade my FF4 to a modern HTML5-compliant > > browser. > > ^^ No problems with Opera. I mean, it's ok that it doesn't work, it's just diagnostic message is wrong.
Re: Is it reasonable to learn D
Andrej Mitrovic Wrote: > No problem with FF3. You should upgrade FF4 to FF3 I guess. :P Your FF3 seems to use Adobe Flash instead of HTML5 video.
Re: Is it reasonable to learn D
Das ist ja klasse. Deutschland, Österreich, Schweiz - alle da
Re: Is it reasonable to learn D
On 6/8/11 9:16 PM, Don wrote: Trass3r wrote: - The D compiler has only bad code optimization Yep, but there is LDC and GDC which use LLVM and GCC as backends respectively. - There are no maintained GUI libraries I wouldn't agree with that. Some people are still working on GtkD, QtD and DWT. - The development of the compiler is very slow More and more people are contributing patches so development has definitely become faster. Also Don has more or less taken over development of the CTFE functionality. Nice trend. - Only a small community => no real German community There is no separate German community but there are plenty of Germans here. Manchmal sieht man sie nur nicht sofort ^^ z.B. Don wohnt in Deutschland. Ein paar Österreicher sind auch mit von der Partie. :) David
Re: Is it reasonable to learn D
I'm very surprised that there are so many Germans who use D. Maybe the German D book is a reason for that. I don't know but it's pretty cool.
Re: Is it reasonable to learn D
Trass3r wrote: - The D compiler has only bad code optimization Yep, but there is LDC and GDC which use LLVM and GCC as backends respectively. - There are no maintained GUI libraries I wouldn't agree with that. Some people are still working on GtkD, QtD and DWT. - The development of the compiler is very slow More and more people are contributing patches so development has definitely become faster. Also Don has more or less taken over development of the CTFE functionality. Nice trend. - Only a small community => no real German community There is no separate German community but there are plenty of Germans here. Manchmal sieht man sie nur nicht sofort ^^ z.B. Don wohnt in Deutschland.
Re: Is it reasonable to learn D
No problem with FF3. You should upgrade FF4 to FF3 I guess. :P
Re: Is it reasonable to learn D
http://h3.gd/code/nucleus/ I lol'd at the suggestion to upgrade my FF4 to a modern HTML5-compliant browser. ^^ No problems with Opera.
Re: Is it reasonable to learn D
Trass3r Wrote: > http://h3.gd/code/nucleus/ I lol'd at the suggestion to upgrade my FF4 to a modern HTML5-compliant browser.
Re: Is it reasonable to learn D
> Is D1.x still supported and under development? Yes, though it almost never gets new features anymore, just bug fixes about once a month. See the changelog here: http://www.digitalmars.com/d/1.0/changelog.html
Re: Is it reasonable to learn D
Is D1.x still supported and under development?
Re: Is it reasonable to learn D
Okay - Thank you. Greetings Fab
Re: Is it reasonable to learn D
Fabian wrote: > By the way: I've read that Digital Mars C++ compiler has got a bad > code optimization. Is that true? In general, no. There's some benchmarks where it loses, but there's also some that win. Overall, it isn't as good at optimizing as gcc and visual studio, but it still isn't bad. (The two places where it does the worst from what I've seen is floating point, which is bad, and inlining, which is ok but not great. Everything else it does pretty well.)
Re: Is it reasonable to learn D
Hi I'm using D on Windows so I'm not able to use LDC. But I believe DMD should be a good alternative too. If the garbage collection makes trouble I can disable it - or? http://stackoverflow.com/questions/472133/turning-off-the-d-garbage-collector By the way: I've read that Digital Mars C++ compiler has got a bad code optimization. Is that true? In comparison with the Microsoft Visual Studio compiler. Greetings Fabian
Re: Is it reasonable to learn D
On Wed, 08 Jun 2011 07:11:03 -0400, Fabian wrote: Calling all: Thank you. I want to use Tango because a friend has lent me a book about learning D and using the Tango Software Library. So I'm forced to use D 1.x, aren't I? At the moment, yes. I believe there are ports to D2 in the works. At the moment I just want to learn D - I'm not going to code any big project with D next time so I think DMD is OK at the beginning. But I'm no coding newbie - I've already experiences with Delphi and I'm able to find a solution (also object orientated) for more or less complicated problems. (Network, Graphics, Threading, ...). This is a good way to start. But if you are planning on using Tango, why not use LDC (assuming you are on Linux)? LDC is built *expecting* Tango to be the runtime library, whereas DMD expects phobos to be the runtime (Tango is designed to work with both). Just remember if you need help, you can ask any questions here! D's community is usually very eager to help out newbies. But if I want to start a bigger project like a small game (Jump 'n' Run, ...) I would be very glad to know that my compiler has got a good code optimization. Code optimization is likely not going to be an issue, DMD and LDC both are based on C++ compilers, so they have a lot of the same optimizations. I'd worry more about the GC for performance. -Steve
Re: Is it reasonable to learn D
Calling all: Thank you. I want to use Tango because a friend has lent me a book about learning D and using the Tango Software Library. So I'm forced to use D 1.x, aren't I? At the moment I just want to learn D - I'm not going to code any big project with D next time so I think DMD is OK at the beginning. But I'm no coding newbie - I've already experiences with Delphi and I'm able to find a solution (also object orientated) for more or less complicated problems. (Network, Graphics, Threading, ...). But if I want to start a bigger project like a small game (Jump 'n' Run, ...) I would be very glad to know that my compiler has got a good code optimization. Greetings Fabian PS: I believe that's no big problem that there's no German community because my English is understandable - I think. But it's more comfortable to communicate in German.
Re: Is it reasonable to learn D
Oh - yeah. Thank you - English can be so easy :D
Re: Is it reasonable to learn D
- The D compiler has only bad code optimization Yep, but there is LDC and GDC which use LLVM and GCC as backends respectively. - There are no maintained GUI libraries I wouldn't agree with that. Some people are still working on GtkD, QtD and DWT. - The development of the compiler is very slow More and more people are contributing patches so development has definitely become faster. Also Don has more or less taken over development of the CTFE functionality. Nice trend. - Only a small community => no real German community There is no separate German community but there are plenty of Germans here. Manchmal sieht man sie nur nicht sofort ^^ So I ask you - Is it reasonable to learn D? Yeah, learning D is definitely worth it, if only to know why C++ and especially C++0x sucks ass ;) The language and its potential is just great. In my experience you shouldn't use D for a particular project though if you - have pressing deadlines, cause compiler bugs might become very painful. - depend on C++ libraries or have to code a module for a big C++ framework. I tried using SFML but wasted a lot of time writing the wrapper code instead of actual application code. Apart from that it's perfectly possible to accomplish non-trivial projects with D, be it against all odds like http://h3.gd/code/nucleus/
Re: Is it reasonable to learn D
Fabian wrote: > > The community does not grow if people stay away because it is small. > > Thank you for your answer. - You've got a big point! > > > I don't know about this but I think QtD and DWT are still being > > maintained? > > I can't see any changes on this web page: > http://www.dsource.org/projects/dwt/wiki > > That's too bad :-( > > How do you use D? What are your fields of application? I am quite new to D myself. I have been using D mostly for solving small algorithmic problems. I'd like to improve that situation though, I will definitely use D for some small/medium project soon. What are you looking for? Do you have any specific use in mind? > > Greetings Fabian > > PS: Are you a native German speaker? Yes. Timon
Re: Is it reasonable to learn D
Am 07.06.2011, 23:02 Uhr, schrieb Fabian : I can't see any changes on this web page: http://www.dsource.org/projects/dwt/wiki That doesn't mean anything. Development sometimes takes place behind the scenes or in forks at github or bitbucket.
Re: Is it reasonable to learn D
On 07/06/2011 20:47, Fabian wrote: Dear D Community, is it reasonable to learn D? I've found a lot of good points for D but I've found a lot of negative points too. I believe that I needn't to list all the point for D but I want to give a few examples against learning D I've read in some German and English boards: - The D compiler has only bad code optimization You must be thinking of dmd! There's also ldc and gdc using the llvm and gcc backends respectively, they're capable of producing code roughly as fast as the equivalent C/C++ applications. - There are no maintained GUI libraries I don't know what the state of GUI libraries is in D, but I have used both GtkD and QtD without problem before now. There are also a couple of others which have recently had updates. - The development of the compiler is very slow Very slow? dmd gets a new release about once a month with a huge of bug fixes - http://www.digitalmars.com/d/2.0/changelog.html - scroll down the page, there's a lot in each release. And, since the move the github, there's even more going on - https://github.com/D-Programming-Language/dmd/commits/master at least a few commits a day, by an increasing number of developers. The speed of development has increased a lot in the past months. - Only a small community Well that's a catch-22 - if people chose not to learn it because it has a small community, the community will stay small! There's an increasing amount of awareness and adoption of D, particularly since Andrei released his book "The D Programming Language". => no real German community You'd be surprised - while I don't think there's a dedicated German forum for D (perhaps you'd like to start one?) there are a lot of people from Germany using D - about 10% of the people in D's IRC channel on freenode are German, and there's probably more using the newsgroups. I think a lot of people chose to use English anyway as it's the language most of the people on the forums speak. So I ask you - Is it reasonable to learn D? Definitely yes! Even if you don't end up using it as a primary language, it's a fantastic language with lots of great ideas - I find myself missing features from D when I use other languages. I'm looking forward to your answers. Greetings Fabian PS: If you want to contact me you are allowed to write an Email to me. contact-...@freemail.de -- Robert http://octarineparrot.com/
Re: Is it reasonable to learn D
On 2011-06-07 14:02, Fabian wrote: > > The community does not grow if people stay away because it is small. > > Thank you for your answer. - You've got a big point! > > > I don't know about this but I think QtD and DWT are still being > > maintained? > > I can't see any changes on this web page: > http://www.dsource.org/projects/dwt/wiki > > That's too bad :-( http://hg.dsource.org/projects/dwt2 DWT was recently ported to D2. Also, QtD is definitely under active development. But I'm sure that there's still plenty of work to be done. - Jonathan M Davis
Re: Is it reasonable to learn D
On 06/07/2011 01:55 PM, Fabian wrote: >> D is still a young language, >> which I think accounts for all of the negative feedback you've listed. > What does "think accounts" mean? I rephrase with apology: D is still a young language. I think that fact accounts for all of the negative feedback that you've listed. Ali
Re: Is it reasonable to learn D
> The community does not grow if people stay away because it is small. Thank you for your answer. - You've got a big point! > I don't know about this but I think QtD and DWT are still being > maintained? I can't see any changes on this web page: http://www.dsource.org/projects/dwt/wiki That's too bad :-( How do you use D? What are your fields of application? Greetings Fabian PS: Are you a native German speaker?
Re: Is it reasonable to learn D
I think your question is highly subjective. D is still a young language, which I think accounts for all of the negative feedback you've listed. I believe D isn't so young anymore. Version 1.0 was released 2007 and I believe 4 years are long enough to bring out some maintained GUI libraries. If someone says D doesn't aim at GUI development I must say that's not true because D is designed as a new object orientated language basing on C. And as a consequence of that D should support all the areas of application which C already supports. I hope you can understand my bad English. Connecting to that (my bad English) I have another stupid question: What does "think accounts" mean? Greetings Fabian
Re: Is it reasonable to learn D
Fabian wrote: > Dear D Community, > is it reasonable to learn D? > I've found a lot of good points for D but I've found a lot of negative > points too. I believe that I needn't to list all the point for D but I > want to give a few examples against learning D I've read in some German > and English boards: > > - The D compiler has only bad code optimization It is not very bad, but does not match the sophisticatedness of modern C++ compilers. I think the optimizations on integer arithmetics are quite okay, but unfortunately the compiler cannot create floating point register variables. You can always resort to inline assembly/link in C or C++ if some part of your code is very performance-critical. D code can already outperform C++ code on similar tasks if you make smart use of D features. (without making your code ugly or unmaintainable). But it is true that this could be improved. (To the point where a D compiler could make MORE optimizations than C++, because it has immutable and pure). > - There are no maintained GUI libraries I don't know about this but I think QtD and DWT are still being maintained? Also, D is fully binary compatible with C/(C++) You can also do your GUI programming in C or C++ and use D for some program logic until the situation improves. > - The development of the compiler is very slow Have a look at the last changelog. The development is not lightning fast but quite steady. Also keep in mind that there is no big company behind D, all the compiler development is basically volunteering work. > - Only a small community > => no real German community The community does not grow if people stay away because it is small. ;) *I* speak German btw. > > So I ask you - Is it reasonable to learn D? > I'm looking forward to your answers. > > Greetings Fabian > > PS: If you want to contact me you are allowed to write an Email to me. > contact-...@freemail.de I think it is very reasonable. But it depends on what you want to use it for. There are already companies out there that use D. If you have some time to spend, it is certainly valuable. D has some very nice design decisions. The _language_ itself is imho superior to the alternatives. Where D is arguably somewhat lacking (as you have already figured out.) is support/native libraries. It does make up some of that by being easily linkable with C libraries, but you often will have to write the bindings yourself. But again that does not get better if people don't learn D because of lack of support or native libraries. There are also some upsides to a language being less mature: You can still submit patches and get some of your very own code into the reference compiler implementation! ;) Timon
Re: Is it reasonable to learn D
On 06/07/2011 01:47 PM, Fabian wrote: Dear D Community, is it reasonable to learn D? I've found a lot of good points for D but I've found a lot of negative points too. I believe that I needn't to list all the point for D but I want to give a few examples against learning D I've read in some German and English boards: - The D compiler has only bad code optimization - There are no maintained GUI libraries - The development of the compiler is very slow - Only a small community => no real German community So I ask you - Is it reasonable to learn D? I'm looking forward to your answers. Greetings Fabian PS: If you want to contact me you are allowed to write an Email to me. contact-...@freemail.de I think your question is highly subjective. D is still a young language, which I think accounts for all of the negative feedback you've listed.
Is it reasonable to learn D
Dear D Community, is it reasonable to learn D? I've found a lot of good points for D but I've found a lot of negative points too. I believe that I needn't to list all the point for D but I want to give a few examples against learning D I've read in some German and English boards: - The D compiler has only bad code optimization - There are no maintained GUI libraries - The development of the compiler is very slow - Only a small community => no real German community So I ask you - Is it reasonable to learn D? I'm looking forward to your answers. Greetings Fabian PS: If you want to contact me you are allowed to write an Email to me. contact-...@freemail.de
