Материал из C\C++ эксперт
Appending to the End of a File
#include <iostream>
#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;
}
