D programming

bioinfornatics · #1 11th June 2012, 11:48 PM

Just to highlight fedora user

Fedora 17 provides a D programming environnement
- D is much more better than C++11
- D has same perf than C++
- D do not use a virtual machine
- Its syntax is said to be clear and expressive

if your script is biger than 1000 lines maybe switch to D (instead to use python, ruby, perl .... )
you need speed, security, easy to maintain it, choose D

you are welcome

Install

Code:

$ su -c 'yum install ldc*'

Test

Code:

import std.stdio;
void main(){
  writeln("hello world");
}

Code:

$ ldc2 test.d
./test
hello world

RupertPupkin · #2 12th June 2012, 07:03 PM

I like your enthusiasm.

I tried getting into D several years ago, and one thing that always confused me was the two competing runtimes and standard libraries, Phobos and Tango. I get the feeling that that confused (and turned off) a lot of programmers because it wasn't clear which one to use. Has that split been resolved now? I think D would have caught on more by now if that split could have been avoided. Because while that confusion was going on it seems like many (but not all) of the complaints that C++ programmers had with C++ were getting fixed in C++11, which finally came out last year. It's a shame, because I do think that D is a nice language.

By the way, what is the difference between the LDC packages in the Fedora repos and the DMD compiler available here? I see that LDC uses LLVM as the backend, so what does DMD use? Also, what happened to GDC, the GNU version? I thought it used to be in the Fedora repos, but it's definitely not there now for F17. I'd prefer to use a GCC backend instead of LLVM.

I've been playing with Rust, another language that's advertised as an alternative/successor to C++, and it seems pretty good (though still in beta stage). It doesn't seem as fast as D, but one thing it has that I like is type safety. From what I've seen D doesn't have that, which has always been one of the complaints against C++, so in that regard D doesn't improve on C++. I'll keep playing with Rust, but I'll play with D again as well. I'm glad that there's a D mode for Emacs

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bioinfornatics · #3 13th June 2012, 12:16 AM

Quote:

Originally Posted by RupertPupkin

I like your enthusiasm.

Thanks

Yes you are right some time ago they was 2 standard library Tango / Phobos because each one provides his garbage collector. Now the standard library is Phobos. In more you can now to use Tango with Phobos without any problem.

Dmd is not all free: they are the frontend (free), backend (non free) for this reason this compiler can not go to offical fedora repo.
In more it seem binary executable generated by ldc is more faster than dmd.
About D compiler into gcc this should come with gcc 4.8.

Rust is an interisting language.
One advantage of D over Rust is that you know Java, C, Python and C++, then it doesn't take too much time to learn D. While Rust contains several less commonly known things (typeclasses, region inference, etc).

bioinfornatics · #4 20th June 2012, 10:25 PM

you can now use D directly in your browser: http://dpaste.dzfl.pl/

Example of use: http://dpaste.dzfl.pl/a8dc9212

Have fun :-)