FileIO - Ein Copy-Programm für Textdateien

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

void error(char *s, char *s2="")
{
  cerr << s << ' ' << s2 << '\n';
  exit(1);
}

void main(int argc, char *argv[])
{
  char buf[1024];
  ifstream in; ofstream out;
  
  in.open(argv[1], ios::in);
  if (!in) error("Can't read from", argv[1]);

  out.open(argv[2], ios::out);
  if (!out) error("Can't write to", argv[2]);

  while(in.getline(buf, 1024, '\n') && !in.eof())
  {
    out << buf << endl;
  }
  in.close(); out.close();
}