[Scip] New Solution Callback

[Jakob Breier]

Hi,

with the help of your reply I got it to work that night, thanks :) .

For those that are interested in a C++-ish solution I attached my class 
files. The SCIPcatchEvent and SCIPdropEvent calls are essentially in the 
same place as in Stefan Heinz' example.

Regards,
Jakob Breier


On 07/16/2010 10:43 PM, Stefan Vigerske wrote:
> Hi,
>
> Jakob Breier wrote:
>    
>> SolFoundEventHandler::SolFoundEventHandler() :
>> ObjEventhdlr("SOLFOUND","desc")
>> // As far as I understand the interface the above line should tell
>> // scip that I want to catch the SOLFOUND event.
>> {
>>
>> }
>>      
> No, "SOLFOUND" is just the name of your eventhandler.
> I think you need to catch and drop the solfound event by call something like
> SCIP_CALL( SCIPcatchEvent(scip, SCIP_EVENTTYPE_SOLFOUND, eventhdlr,
> eventdata, NULL) );
> in scip_initsol and
> SCIP_CALL( SCIPdropEvent(scip, SCIP_EVENTTYPE_SOLFOUND, eventhdlr,
> eventdata, -1) );
> in scip_exitsol.
>
> Stefan
>
>    
>>
>> SCIP_RETCODE SolFoundEventHandler::scip_exec(
>>           SCIP*              scip,
>>           SCIP_EVENTHDLR*    eventhdlr,
>>           SCIP_EVENT*        event,
>>           SCIP_EVENTDATA*    eventdata
>>           )
>> {
>>
>>           SCIPerrorMessage("This message will never be printed.");
>>           SCIPABORT();
>>
>>           return SCIP_OKAY;
>>
>>
>> }
>>
>> Also "SCIP_CALL_ABORT(SCIPincludeObjEventhdlr(scip_,
>> &solFoundEventHandler, false));" is called before the solving begins
>> (solFoundEventHandler is of course an object of type
>> SolFoundEventHandler). Yet SCIP_RETCODE SolFoundEventHandler::scip_exec
>> is never called.
>> Do you know what I do wrong?
>>
>> Regards,
>> Jakob Breier
>> _______________________________________________
>> Scip mailing list
>> Scip at zib.de
>> http://listserv.zib.de/mailman/listinfo/scip
>>
>>      
>
>    

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