[Gambas-devel] Needed Info

[Randall Morgan]

Hi Benoit,

I do understand that some of the function are provided by Gambas natively.
I included them in an effort to keep the GSL class as complete as possible.
Someone experienced with using GSL from Ada or C/C++ may expect those
function to be included. Therefore, I decided to include them. Also, the
GSL library provides "known" levels of accuracy in function like Pow and
ArcTan, which may be expected by the component user.



2012/2/11 Benoît Minisini <gambas at ...1...>

> Le 11/02/2012 02:01, Randall Morgan a écrit :
> > Hi Benoit,
> >
> > Can you expand on the purpose of the following:
> >
> > /* The following symbols must be declared with EXPORT in a component:
> >     - GB
> >     - GB_INIT()
> >     - GB_EXIT()
> > */
> >
> > I have started the documentation as promised though I still have a lot
> > to learn. But while waiting for replies from you I figured I could at
> > least start on the documentation for what i do know... But there is
> > nothing written on these items except that they must be declared extern.
> >
> > My guess is: GB is the master Gamabs object.
> >
> > GB_INIT() is used for initialization of a class, something like a
> > constructor?
> >
> > GB_EXIT() is used to shut down the class cleanly like a destructor?
> >
> > Any confirmation or additional information would be very helpful.
> >
> > Thanks
> >
>
> GB_INIT() and GB_EXIT() are two mandatory exported functions:
> - GB_INIT() is called by the interpreter to initialize the component.
> - GB_EXIT() is called by the interpreter to uninitialize the component.
>
> GB is a structure (GB_INTERFACE) that is filled by the interpreter with
> the interpreter API when the component is loaded. So the GB symbol must
> be exported too.
>
> Look at the source of any component to see how they are declared.
>
> Another unrelated point now: as soon as I find time, I will tell you
> what to remove and clean-up in your component. Some GSL functions are
> not useful in Gambas (mainly because they already exist in the
> interpreter), so they should not be implemented in the component.
>
> Regards,
>
> --
> Benoît Minisini
>
>
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