Question

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

using namespace std;

class Dict
{
public:
    string line;
    int wordcount;
    string word;
    vector<string> words;
    Dict(string f)
    {
        ifstream myFile;
        myFile.open(f.c_str());
        if (myFile.is_open())
        {
            while(!myFile.eof())
            {
                myFile >> word;
                words.push_back(word);
            }
            cout << endl << "Wordcount: " << wordcount << endl;
        }
        else
            cout << "ERROR couldn't open file" << endl;
        myFile.close();
    }
};

int main()
{
    Dict d("test.txt");
    cout << words.size() << endl;
    return 0;
}

I get an error that words vector was not declared in main().

How can I make this visible to the compiler, since I already defined it in the class. Once an object is instantiated and the constructor is invoked, shouldn’t words vector be created? But the compiler doesn’t notice this.

How would I fix this?

Answer 1

words is a member in your Dict object d:

int main() {
    Dict d("test.txt");
    cout << d.words.size();
    return 0;
}