Questionnaire

[Arun Chandrasekaran via Digitalmars-d-announce]

On Wednesday, 8 February 2017 at 18:27:57 UTC, Ilya Yaroshenko 
wrote:
> 1. Why your company uses  D?
>
>   a. D is the best
>   b. We like D
>   c. I like D and my company allowed me to use D
>   d. My head like D
>   e. Because marketing reasons
>   f. Because my company can be more efficient with D for some 
> tasks then with any other system language

We don't use D. But IMO, D is the best PL with it's amazing 
compile time features (templates, templates everywhere and still 
it can be maintainable).

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

C, C++, C#, Java

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

1. For algorithms: We develop biometric algorithms and create 
shared objects and DLLs. We need these to be used on variety of 
platforms interfacing with various languages like C++, C#, Java, 
Go. D makes it impossible to convince teams that develop 
algorithms.

2. For applications/solutions: An year ago we evaluated D (to 
replace C++) for one of our large scale distributed solution 
(map-reduce for biometrics). But ended up developing it in C++ 
for the following reasons:
a) Lack of high quality libraries like Boost/Qt. With the 
horrible template syntax of C++, people created Boost and helped 
shape C++ what it is now. D is pleasant to program with and I'm 
wondering why there is no such comprehensive set of libraries in 
D.
b) GC. We fill pretty much the entire RAM (>=128 GB) with data 
and operate on it. The end-to-end system latency must be in 
milliseconds and also provide high throughput. Not really an 
option with D's current state of GC.
c) IDE support.
d) We have already got used to the warts of C++, Java and we know 
how to avoid them. It is fair for us to ask the team to learn D, 
but not *ignore X and get used to it* as well.

D tries to compete and satisfy all paradigms (recently trying to 
catch-up with Rust's safety feature) which is good from a 
language point of view. But it could also focus on fixing it's 
base.

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

No.

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

No.

> 5. What D misses to be commercially successful languages?

a) Good quality libraries
b) Cross platform IDE
c) Corporate backup
c) Vibrant community. IMHO, the lack of good quality libraries 
can be directly attributed to the lack of critical mass of 
topnotch brains in the community.

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

a) Good quality libraries
b) Small run-time
c) Cross platform IDE
d) People are already familiar with C/C++