OpenEuphoria

Re: define_c_func/proc question

• Posted by Robert Craig <rds at RapidEuphoria.com> Dec 26, 2005
• 661 views

CChris wrote:
> If define_c_func() is called several times for the same {dll,name} or 
> {{},address} pair, will the same routine_id be returned? 

No, you'll get a different routine id each time.

In contrast, routine_id() will give you the same id
each time for the same Euphoria routine. In the case of
Euphoria routines, it was easy to check if a routine already
had an id assigned to it.

For most programs, it doesn't matter, because the routine id
is only derived once.
 
> RC: could you include this precision in the docs? It's useful to know
> when you want a custom message to call an user-supplied callback to pass the
> 
> results back.

OK. 
I'm always a bit leary of documenting minor details like this,
since it more or less commits me to never changing how it
works in the future, but I guess I can commit to this.

> Also, could you consider extending allocate() and free() to sequences? The 
> extended routines would return or free a sequence of addresses.

I really don't see much demand for this.
It would be easy for you to make your own routines for this,
or just write a simple for-loop.

Regards,
   Rob Craig
   Rapid Deployment Software
   http://www.RapidEuphoria.com