modred team mailing list archive

[Scott Lawrence <bytbox@xxxxxxxxx>]

The header needs to precisely define our interface.  Not what our
interface is attempting to mimic.  Thus, every header needs to be
created, pretty much from scratch, by us, carefully.

We aren't in general, going to reimplement the C/C++ standard library.
 Almost all of it, even the memory allocation parts, are going to be
exactly the same, except the underlying syscalls will have different
implementations (they'll call our own syscalls). Eventually we might
tweak stuff to speed it up by reducing the number of crazy syscalls.

But: can we agree that the C standard library could do with a few more
features? Avoiding bloatware, couldn't we still make a slightly more
comprehensive math library, perhaps with indefinite precision support
or something similar?


On 1/3/10, Frederic Koehler <fkfire@xxxxxxxxx> wrote:
> Uh...why do we need to reimplement the C/C++ standard library? The math
> functions, at least, in standard C are totally fine for a base.
>
> I don't see why modred headers would need anything except the stuff directly
> relevant to the cluster's operation.
>
> On Sunday 03 January 2010 15:14:45 Scott Lawrence wrote:
>> I've started working on the headers that C programs can access. We
>> should create the POSIX headers after creating native modred headers,
>> since they'll likely have several includes (like including the math
>> libraries).
>>
>> The headers are in /include/c of the repo. An explanation is in README
>> there. Try to maintain good documentation, generated with doxygen.
>>
>> Question: what stuff should our math headers support, and what other
>> general (non-memoryalloc, i/o type stuff) headers should we have?  I
>> guess data structures, but what else? What sorts of algorithms are
>> there that could possibly be of use? (Yes, by the way, I'm
>> deliberately implementing stuff that's generally implemented in the
>> STL in C. I think that's appropriate, and should have been done long
>> ago?)
>>
>> It'd be nice if the functionality our headers/libraries had was
>> significantly superior to the standard UNIX equivalents.
>>
>
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-- 
Scott Lawrence

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Montgomery Blair High School