STL Vector of Vector Insertion Problem by ozgurcolpankan

The code is working normally on Visual Studio 2005. However, in visual studio 2010 with new rvalue reference feature vector class has been upgraded. So in this code it is throwing exception.

#include <vector>
#include <iostream>

using namespace std;

int main()
{
    vector<vector<int>> testVec;
    vector<int> vec;
    
    //if this is included code is working successfully, otherwise throws exception.
    //testVec.reserve(2);

    testVec.push_back(vec);
    testVec.insert(testVec.end(), testVec.at(0)); //exception is throwed here

    return 0;
}