Re: shared_ptr throw error: pointer being freed was not allocated

On Friday, July 25, 2014 4:18:38 AM UTC-4, TZhang wrote:


Thanks Marcel. I was doing this because recently I was working on a code base that is implemented in the following way:

#include <memory>
#include <vector>
using namespace std;

shared_ptr<int> tmpfunc1(int* p)
{
    return shared_ptr<int>(p);
}

void tmpfunc2(int * px)
{
    shared_ptr<int> ptr1 = tmpfunc1(px);
}

class A
{
public:
    vector<int*> ptrvec;
    vector<shared_ptr<int> > shrptrvec;
    A() {};
    ~A() {};
};

int main()
{
    A a;
    for (int i = 0; i < 100; ++i)
    {
        shared_ptr<int> tmpptr(new int);
        a.ptrvec.push_back(tmpptr.get());
        a.shrptrvec.push_back(tmpptr);
    }
    tmpfunc2(a.ptrvec[0]);
}

The code will still crash though the integers were allocated on heap. ennnnn