Write formatted output to a text file. : Text file write « File Stream « C++ Tutorial






  1. C++ Tutorial
  2. File Stream
  3. Text file write
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
  ofstream fout("test.dat");

  if(!fout) {
    cout << "Cannot open file.\n";
    return 1;
  }

  fout << 10 << " " << -20 << " " << 30.2 << "\n";
  fout << "This is a test.";

  fout.close();

  if(!fout.good()) {
    cout << "A file error occurred.";
    return 1;
  }
}








12.2.Text file write
12.2.1.Write to file
12.2.2.Save string double pair to file
12.2.3.Use put() to write to a file
12.2.4.Output a text file character by character
12.2.5.Write formatted output to a text file.
12.2.6.Use ofstream to write text to a file
12.2.7.Output string and decimal in hexadecimal format to a file with ostrstream
12.2.8.Output to file line by line
12.2.9.writing on a text file
12.2.10.file output with strings
12.2.11.file output with characters