[CoinMp] CoinMP cbc memory leak?

[Rod Frowd]

Stuart:

I have run this on an LP and it does not generate an error.

Deleting a pointer that is NULL is just a noop.

Thanks

Rod

Stuart Mitchell wrote:
> Note your solution will probably cause an error if the user wishes to 
> solve a linear (not integer) programing problem.
>
> I think I generated a ticket for this and some other problems I have 
> found.
>
> Note I have produced a new version of CoinMP (I have also had to 
> change the externals so I compiles properly, and some other bug fixes)
>
> This can be found on the in the svn source code of pulp-or on 
> http://code.google.com/p/pulp-or/source/browse
> Rod Frowd wrote:
>> I have been running the CBC MIP repetitively from CoinMP.dll and it 
>> seems to be leaking memory and growing in size.
>>
>> I have added a delete of the cbc object into CoinMP.cpp as follows. 
>> It looks like this will also delete the cut generator objects created 
>> as its destructor includes deletion of the cut generators.
>>
>> SOLVAPI int CoinUnloadProblem(HPROB hProb)
>> {
>>   PCOIN pCoin = (PCOIN)hProb;
>>      if (pCoin) {
>>        delete pCoin->clp;
>>        if (pCoin->RowLower) free(pCoin->RowLower);
>>        if (pCoin->RowUpper) free(pCoin->RowUpper);
>>        if (pCoin->IsInt) free(pCoin->IsInt);
>>        delete pCoin->cbc;
>>        pCoin->cbc = NULL;
>>    }
>>    free(pCoin);
>>    pCoin = NULL;
>>    return SOLV_SUCCESS;
>> }
>>
>>
>> Rod Frowd
>> _______________________________________________
>> CoinMp mailing list
>> CoinMp at list.coin-or.org
>> http://list.coin-or.org/mailman/listinfo/coinmp
>>   
>
>
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