Soooooo..... my word recognition isn't right i think

I'm trying to get my program to count the occurences of vector in a file in the same directory as the program. Basic stuff, I just don't know how to get the for(int i = 0; word == "vector"; i++) right i think anyone got advice.

Code:

---

#include <iostream>
#include <fstream>
#include <vector>
#include <string>


using namespace std;


int main()
{
    vector<string> lookfor
    vector<string> words;
    ifstream in("occurence.txt");
    string word;
    int number = 0;
    while(in >> word)
        lookfor.push_back(word);
    for(int i = 0;word == "vector"; i++)
        number = number + 1;
    cout << endl << "The document has " << number << " occurences of the word 'vector'." << endl;
}

---

How about comparing with each word in your vector?

As in
if ( lookfor[i] == "vector" ) count++;

o bawls! thank you man! it worked like a charm, I'm really noob to C++. Reading out of thinking in C++ by Bruce Eckel and was needing help figuring out one of the examples.