Writing numbers to a file : ofstream « File Stream « C++ Tutorial






  1. C++ Tutorial
  2. File Stream
  3. ofstream
#include <fstream>                             
#include <iomanip>

int main() {
  std::ofstream outFile("test.txt");

  for(int i = 0 ; i < 100 ; i++) {
    if(i  5 == 0)
      outFile << std::endl;
    outFile << std::setw(10) << i;
  }

  return 0;
}








12.10.ofstream
12.10.1.Save char array to a file
12.10.2.Read char array from a file
12.10.3.Writing on a text file
12.10.4.Writing numbers to a file
12.10.5.ofstream: seek from beginning
12.10.6.Save and read double array in a binary file
12.10.7.Save and read structure
12.10.8.Save chars to a binary file
12.10.9.Demonstrate peek(), unget(), and ignore().
12.10.10.Create a sequential file.