Source of binary_file1.cpp

Structures and functions

  1: //binary_file1.cpp

  3: #include <iostream>
  4: #include <fstream>
  5: using namespace std;

  7: int main()
  8: {
  9:     cout << "\nThis program reads in a single integer, then writes "
 10:         "that integer out to both\na textfile and a binary file, thus "
 11:         "allowing the user to easily compare the two\noutputs. The two "
 12:         "files should be compared for both size and content. Try the "
 13:         "\nvalues 3, 7, 1234 and 1234567, for example.";
 14:     cout << "\nPress Enter to continue ... ";  cin.ignore(80, '\n');

 16:     int i;
 17:     cout << "\nEnter your integer value here: ";
 18:     cin >> i;  cin.ignore(80, '\n');

 20:     ofstream outFileText("binary_file1.txt");
 21:     fstream outFileBinary("binary_file1.bin",
 22:         ios::trunc | ios::out | ios::binary);

 24:     ////An alternative to the above two lines is:
 25:     //ofstream outFileText;
 26:     //outFileText.open("binary_file1.txt");
 27:     //fstream outFileBinary;
 28:     //outFileBinary.open("binary_file1.bin",
 29:     //    ios::trunc | ios::out | ios::binary);

 31:     outFileText << i;
 32:     outFileBinary.write((char *)&i, sizeof(i));

 34:     outFileText.close();
 35:     outFileBinary.close();
 36:     cout << "\nThe integer " << i << " has now been written to both "
 37:         "files.\nCheck the size and content of binary_file1.txt and "
 38:         "binary_file1.bin.";
 39:     cout << "\nPress Enter to continue ... ";  cin.ignore(80, '\n');
 40: }