[Coin-ipopt] Using UserDataPtr

Andreas Waechter andreasw at watson.ibm.com
Fri Apr 14 13:03:58 EDT 2006

Hi Amit,

You could have a look at the C example from the older Fortran version of 
Ipopt.  Even though that interface is different, it uses the UserData in a 
very similar way.  The URL directly to the code for the Example is:


I hope this helps,


On Mon, 10 Apr 2006, Amit Partani wrote:

> Hi,
> I donot know how to use UserDataPtr because it is a void* as opposed to
> regular type definitions. I would appreciate if anyone can send a simple
> example how to use void * pointers..
> Thanks,
> Amit
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