C++ Searching for a word in a CSV file - c++

Question

I am trying to create a program that stores data from a CSV file and then searches it for key words.
I have this code, and there are no errors shown, but it wont run the program past asking for 'Enter word: '
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
int main(){
vector<string> student(860);
vector<string> question(860);
vector<string> answer(860);
int count = 0;
string word;
ifstream file("data2.csv");
if (!file.is_open())
cerr << "File not found" << endl;
while (file.good()){
for (int i = 0; i < 860; i++){
getline(file, student[i], ',');
getline(file, question[i], ',');
getline(file, answer[i], ',');
}
}
cout << "Enter word: ";
cin >> word;
for (int j = 0; j < 860; j++){
if (answer[j].find(word) != std::string::npos){
cout << student[j] << question[j] << answer[j] << endl;
count++;
}
}
cout << count;
return 0;
}

Answer 1

In order to get std::cin to contain the exact string (multiple words?) that the user inputs, you can use std::getline() which will support more than one word specified by the user. It's not clear from your problem statement if this is what you want or not. Otherwise I don't see a problem with just using std::cin if all you're looking for is a single word of input.
std::string match;
std::cout << "Enter the exact string to search for: ";
std::getline(std::cin, match);
std::cout << "\nSearching for \"" << match << "\"" << std::endl;
Also, in your for loop for searching the answer strings, you should prefer to use the built in size of the vector you're looping through as opposed to a hard coded value.
for ( size_t j = 0; j < answer.size(); ++j )
{
std::size_t found = answer[j].find(match);
if (found != std::string::npos)
{
std::cout << "found \"" << match
<< "\" starting at character " << found << std::endl;
count++;
}
}
std::cout << "occurrences of match criteria: " << count << std::endl;

Answer 2

the error is in getline, the first call to it, extracts the word until the comma the second call until the 2nd comma, the 3r call to third comma past the to the next new line (the next student's name).
So the next iteration in the getline call, will fetch the question as the students name then the answer as the question then the next students name as the answer, a total mess!!! ;) So you will never find the word you are looking for, thus no result. Get it?
to fix this, try to change the last getline to getline(file, answer[i]);

Answer 3

So, I know this is not the best way to solve the problem. But, in a time crunch I was able to fix these few errors and add a system("pause"); at the end of my code so that it would let me see the results.
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
int main(){
vector<string> student(860);
vector<string> question(860);
vector<string> answer(860);
int count = 0;
string word;
ifstream file("data2.csv");
if (!file.is_open())
cerr << "File not found" << endl;
while (file.good()){
for (int i = 0; i < 860; i++){
getline(file, student[i], ',');
getline(file, question[i], ',');
getline(file, answer[i], '\n');
}
}
cout << "Enter word: ";
cin >> word;
for (int j = 0; j < 860; j++){
if (answer[j].find(word) != std::string::npos){
cout << student[j] << question[j] << answer[j] << endl;
count++;
}
}
cout << count << endl;
system("pause");
return 0;
}