D as a prototyping language (for C/C++ projects)

[simendsjo]

On Tuesday, 26 February 2013 at 15:26:17 UTC, Craig Dillabaugh 
wrote:
> I am a novice D programmer and use C++ in my work. One thing I
> find myself doing when I need to implement some non-trivial
> algorithm is that I will originally code it in D and perform
> testing from there to make sure I have the logic right.
> Once I have everything working in D I simply port it over to 
> C++.
(...)

I'm surprised to see many people doing this. But I'm wondering..
If you already got the code working in D, why not let it stay 
there and write a C interface?
Company policy? Missing dynamic loading? Some build issues?

If the code could stay in D, it would seem like a good way to 
slowly integrate D into a company.