Exceptions "try, catch, and throw Statements" ???

Hi all, I wanted to create a program that will tell me how items I can push onto a string vector before the computer runs out of memory and crashes. Now I remember at uni we touched on Exceptions. And I think that that is what I need to be using. But I cant remember how to use them… below I have what I have tried to do so far, but it doesn’t seem to work.

Code:

vector<string> wordlist;
unsigned long long int count = 0;
try{
    for(;;){
        wordlist.push_back("wordblahhello");
        count++;
        throw count;
    }
}
catch(unsigned long long int count){
    cout << count << endl;
}

I suspect that it should be something like this:

Code:

vector<string> wordlist;
unsigned long int count = 0;
try {
    for (;;) {
        wordlist.push_back("wordblahhello");
        ++count;
    }
}
catch (const std::bad_alloc& e) {
    cout << count << endl;
}

Thanks laserlight, that worked perfectly