Can i use D for OS develop.

[Sean Kelly]

kris wrote:
> knott wrote:
>> Paul Collier Wrote:
>>
>>> knott wrote:
>>>> Hello. Before i start, i must apologize for my poor English.
>>>>
>>>> Can i use D language for OS development(Non-core - user mode devel)?
>>> If you're talking about OS development, there are at least two 
>>> projects to write a kernel in D. You can see them at dsource.org. If 
>>> you're talking userspace development, I think you'll find that 95% of 
>>> D projects already run in userspace ;) If you're talking about 
>>> something in the middle, you can always bind D code to C APIs and 
>>> disable the garbage collector if needed.
>>
>> Im talking about a userspace development in system which in early 
>> stage of development.
>> I want to write program on system which have only small(not full) C 
>> library.
> 
> Tango would rather not have the full C lib either. It rather 
> deliberately uses only a handful of clib calls, and a (small) 
> replacement for those has been on the cards for years. We just never got 
> the time to do that.
> 
> We'd be very interested in a lightweight replacement for those few clib 
> calls, written in D

For what it's worth, the only standard C lib call of note used by the 
Tango runtime is malloc/free.  A few others are used for convenience 
(memset, memmove), but could easily be removed.

By the way, the Tango runtime is designed in a way to makes replacing 
the "standard library" portion quite easy, which may be of interest to 
you if you're thinking about writing your own.  I'll be discussing the 
design at the D conference next week.


Sean