[Coin-discuss] CoinRowCut and Sbb problems in MSVS 6.0

[Alan King]

I ran into the same problem on Win32.   I just commented out the "delete[] 
A" line and it compiles and runs.  Laci says he's going to run it all 
through purify anyway.

Alan King
Mathematical Sciences, IBM Research
http://www.research.ibm.com/
http://www.research.ibm.com/people/k/kingaj/

University Relations: University of Washington
http://www.washington.edu
http://www.ibm.com/university




Yan Xu <yax2 at lehigh.edu>
Sent by: coin-discuss-admin at www-124.southbury.usf.ibm.com
06/19/2003 05:27 PM
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        Subject:        [Coin-discuss] CoinRowCut  and Sbb problems in 
MSVS 6.0


Hi, I encounted some problems when using Sbb in Windows, compiler is 
MSVS6.0

Question 1: Why following code crashes when delete [] A, but declaring A 
as many other types (I tried int, char, ..., and some user-defined 
class) is fine? Is there a problem in OsiRowCut ?

#include <iostream>
#include "OsiRowCut.hpp"
using namespace std;

int main()
{
    int num = 0;

    OsiRowCut* A = new OsiRowCut [num];
//  int* A = new int [num];                          // OTHER TYPE IS FINE

    cout << "num = " << num << endl;
    delete [] A;                                            // CRASH HERE
    return 0;
}


Question 2:  When running Sbb with input data file: fiber, dcmutli, it 
crashes. The place cause crash is line 1880 of SbbModel.cpp

                    delete [] addCuts;

After  print numberToAdd, something like:
.......
numberToAdd = 15
numberToAdd = 25
numberToAdd = 6
numberToAdd = 3
numberToAdd = 4
numberToAdd = 5
numberToAdd = 0  // CRASH AFTER THIS LINE

I found when numberToAdd is 0, 'delete' crashes, which brings the first 
question.

Anyone have some idea, thanks. By the way, I don't have these problems 
in my Linux machine.

Yan







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