C++ Program to Make a File Read-Only

// C++ program to make the file
// in read-only mode using ifstream
#include <fstream>
#include <iostream>
using namespace std;
int main()
{
    // creating an input stream
    ifstream in;
  
    // opening a file in read mode using in
    in.open("Geeks for Geeks.txt");
    if (!in)
        cout << "No file found";
    else {
        char c;
        while (1) {
            in >> c;
            if (in.eof())
                break;
            cout << c;
        }
    }
    in.close();
    return 0;
}

// C++ program to make the file
// in read-only mode using fstream
#include <fstream>
#include <iostream>
using namespace std;
int main()
{
    fstream readFile;
    // opening a file in read mode
    readFile.open("Geeks for Geeks.txt", ios::in);
    if (!readFile)
        cout << "No such file exist";
    else {
        char c;
        while (1) {
            readFile >> c;
            if (readFile.eof())
                break;
            cout << c;
        }
    }
    // closing the file
    readFile.close();
    return 0;
}