1. Why your company uses  D?


My company does not use D. If I had the time, I really think I could integrate D into our build system, probably forcing it a bit: "Oh and by the way, that new library I wrote happens to be written in D..." (We have Vala in our build system, how worse could it be?).

I use it for personal projects.

2. Does your company uses C/C++, Java, Scala, Go, Rust?

We use C/C++/assembly for system stuff. And Java for Android applications. We run Linux or Android on ARM embedded systems.

3. If yes, what the reasons to do not use D instead?

Nobody knows about D. Most system developers use C here, half of them don't like C++ and scorn Java. And most of them don't know about D apart from my close colleagues which probably must hate it without having even used it, just because I always bring it up in any unrelated conversation at lunch.

2. Have you use one of the following Mir projects in production:

No, but it could be very useful for DSP routines. I hope Mir (and D) to have the success it deserves.

4. Have you use one of the following Tamedia projects in your production:

No.

5. What D misses to be commercially successful languages?

I don't know, I'm not a sales-person at all.
I also like D because it's got that "made by developers for developers" thing. I'm an idealist, I'd prefer D to be successful because of its cheer intrinsic value as a programing language, rather than because we throw big money at it.

6. Why many topnotch system projects use C programming language nowadays?

For history reasons. And because of its simplicity (and tooling etc), and its "system" trait. I don't buy the "C compiles bugs" argument. Every languages in the world produce bugs [1].

I noticed the hardest and most insiduous bugs could always be avoided if the software was more carefully designed upfront, especially for real-time or concurrent software.

I use C a lot, it's my favorite language with D, though I'm not a proselyte. I use C++ only as "C with class".

[1] http://jonathanwhiting.com/writing/blog/games_in_c/

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