Virus Protection Software Blocking My Programs

[GoranGaming]

So I was programming a calculator, this was the beginning of my code:

int main(){
    vector<double> emil;
    cout << "-= Emil's Calculator =-\n\nGive me your first number: "; cin >> emil[0];
    return(0);
}

It works fine, but as soon as I define the length of my vector, like this:

int main(){
    vector<double> emil(1);
    cout << "-= Emil's Calculator =-\n\nGive me your first number: "; cin >> emil[0];
    return(0);
}

the program won't run. My virus protection software says that it has discovered a threat and asks if I want to remove it or not. If I ignore, nothing happens, the console screen stays black and nothing gets written. If I tell it to remove the threat it loads for a few seconds, but still nothing gets written. And if I run the program again, the same thing happens all over again. What should I do? How do I tell the software, in this case AVG, to stop protecting me from this obviously harmless program of mine? And why does it fuck up as soon as I define the length of my vector?

[crimsonzero2]

I have read on this once I saw your question. Based on what I'm seeing, to make it a certain size you got to do this:

vector<double> emil;
emil.resize(1);  //resize makes it stay at a certain size that is requested within its field 

Hope this helps. I'm not much familiar with this too much.

[GoranGaming]

Yeah, in some strange way that did the trick. It works now. I don't get why it didn't work before though...