Question

Provide a C++ code segment that reads data from a text file using a while loop.

Answer 1

Here is a simple program ... hope it helps.

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    ifstream myFile;
 
    myReadFile.open("text.txt");
 
    char outputBuffer[100];
 
    if (myFile.is_open())
    {
        while (!myReadFile.eof())
        {
            myFile >> output;
            cout << output;
        }
    }
    
    myFile.close();

    return 0;
}

Comments

//better with same names

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    ifstream myReadFile;
 
    myReadFile.open("text.txt");
 
    char outputBuffer[100];
 
    if (myReadFile.is_open())
    {
        while (!myReadFile.eof())
        {
            myReadFile >> outputBuffer;
            cout << outputBuffer;
        }
    }
    
    myReadFile.close();

    return 0;
}