create file c 2b 2b

1// reading a text file
2#include <iostream>
3#include <fstream>
4#include <string>
5using namespace std;
6
7int main () {
8  string line;
9  ifstream myfile ("example.txt");
10  if (myfile.is_open())
11  {
12    while ( getline (myfile,line) )
13    {
14      //use line here
15    }
16    myfile.close();
17  }
18
19  else cout << "Unable to open file"; 
20
21  return 0;
22}

1#include <iostream>
2#include <fstream>
3using namespace std;
4
5int main() {
6  // Create and open a text file
7  ofstream MyFile("filename.txt");
8
9  // Write to the file
10  MyFile << "Files can be tricky, but it is fun enough!";
11
12  // Close the file
13  MyFile.close();
14

1// using ofstream constructors.
2#include <iostream>
3#include <fstream>  
4
5std::ofstream outfile ("test.txt");
6
7outfile << "my text here!" << std::endl;
8
9outfile.close();
10