C++ vector performance test

//Visit http://pastebin.com/BYpW7dcR to get the original "tVector".
//Subject : performance test (tVector vs vector)

double PCFreq = 0.0;
__int64 CounterStart = 0;

bool StartCounter()
{
    LARGE_INTEGER li;
    if(!QueryPerformanceFrequency(&li))return false;

    PCFreq = double(li.QuadPart);

    QueryPerformanceCounter(&li);
    CounterStart = li.QuadPart;
}
double GetCounter()
{
    LARGE_INTEGER li;
    QueryPerformanceCounter(&li);
    return double(li.QuadPart-CounterStart)/PCFreq;
}

int main()
{

#define __USE_TVECTOR

    int i, j;
    double fTimeTotal = 0;
    std::cout <<  "  Vector performance test" << std::endl;
    std::cout << "----------------------------------------" << std::endl;
#ifdef  __USE_TVECTOR
    tVector<int> vec;
    std::cout <<  "  vector custom version." << std::endl;
    std::cout << "+ tVector<int> time record : " << std::endl;
#else
    vector<int> vec;
    std::cout <<  "  vector standard version." << std::endl;
    std::cout << "+ vector<int> time record : " << std::endl;
#endif

    system("pause");
    std::cout << "----------------------------------------" << std::endl;

///////////////////////////push_back() test////////////////////////////////////////////////
    std::cout << "\tpush_back() test : ";
    StartCounter();
    for(i = 0;i < 25000000;i++) // requires 100 Mb memory
    {
            vec.push_back(100);
    }

    fTimeTotal += GetCounter();
    std::cout << GetCounter() << " sec" << std::endl;

    std::cout <<  std::endl;
    std::cout << "\tpop_back() test : ";

    StartCounter();
    for(i = 0;i < 25000000;i++) // Clean up
    {
            vec.pop_back();
    }

    fTimeTotal += GetCounter();
    std::cout << GetCounter() << " sec" << std::endl;

    std::cout <<  std::endl;
///////////////////////////insert() test////////////////////////////////////////////////
    std::cout << "\tinsert() test : ";
    vec.resize(1);
    StartCounter();
    for(i = 0;i < 1000;i++)
    {
        for(j = 0;j < 100;j++)
            vec.push_back(10 * (rand() % 5));

        for(j = 0;j < 50;j++)
            vec.insert(vec.begin() + 10, 100); // Try inserting some elements

            vec.insert(vec.begin() + 10, 20, 100);  // Try inserting multiple elements at a time
    }

    fTimeTotal += GetCounter();
    std::cout  << GetCounter() << " sec" << std::endl;
    //std::cout << "vector size = " << vec.size() << std::endl << std::endl;

    std::cout <<  std::endl;
///////////////////////////access() test////////////////////////////////////////////////
    std::cout << "\taccess() test : (sum all values)" << std::endl;
    unsigned int temp = 0;
    StartCounter();
    for(i = 0;i < vec.size();i++) //170001 elements total
    {
        temp += vec[i];
        temp += vec.at(i);
        temp += *(vec.begin() + i);
        temp += *(vec.end() - (vec.size() - i));
    }

    std::cout << "\tFinal value = " << temp << std::endl;
    fTimeTotal += GetCounter();
    std::cout  << "\tTime : " << GetCounter() << " sec" << std::endl;

    std::cout <<  std::endl;
    std::cout << "\terase() test : ";
///////////////////////////erase() test////////////////////////////////////////////////
    StartCounter();
    while(vec.size())
    {
            vec.erase(vec.begin());
    }

    fTimeTotal += GetCounter();
    std::cout  << GetCounter() << " sec" << std::endl;
    std::cout << "----------------------------------------" << std::endl;
    std::cout << "Total time = " << fTimeTotal << " sec" << std::endl;

getch();
return 0;
}