C++/File/Append

Appending to the End of a File

<source lang="cpp">

1. include <iostream>
2. include <fstream>

using namespace std; int main(){

  char fileName[80];
  char buffer[255];
  cout << "Please re-enter the file name: ";
  cin >> fileName;
  ifstream fin(fileName);
  if (fin){
     char ch;
     while (fin.get(ch))
        cout << ch;
  }
  fin.close();
  cout << "in append mode...\n";
  ofstream fout(fileName,ios::app);
  if (!fout)
  {
     cout << "Unable to open for appending.\n";
     return(1);
  }
  cout << "\nEnter text for the file: ";
  cin.ignore(1,"\n");
  cin.getline(buffer,255);
  fout << buffer << "\n";
  fout.close();
  fin.open(fileName);
  if (!fin)
  {
     cout << "Unable to open for reading.\n";
     return(1);
  }
  char ch;
  while (fin.get(ch))
     cout << ch;
  fin.close();
  return 0;

}

 </source>