Use ifstream and ofstream to copy file : file utilities « File Stream « C++ Tutorial

1. C++ Tutorial
2. File Stream
3. file utilities

#include <iostream.h>
#include <fstream.H>

main(void)
{
       char ch;

       ifstream f1("test.txt");
       ofstream f2("text1.txt");
       
       if(!f1) 
          cerr <<"Can't open IN file\n";
       if(!f2) 
          cerr << "Can't open OUT file\n";
       
       while(f1 && f1.get(ch) ) 
          f2.put(ch);
       return (0);
}