Copy a file

// Copy a file

#include <fstream>

using namespace std;

int main () {

  char * buffer;

  long size;

  ifstream infile ("test.txt",ifstream::binary);

  ofstream outfile ("new.txt",ofstream::binary);

  // get size of file

  infile.seekg(0,ifstream::end);

  size=infile.tellg();

  infile.seekg(0);

  // allocate memory for file content

  buffer = new char [size];

  // read content of infile

  infile.read (buffer,size);

  // write to outfile

  outfile.write (buffer,size);

  

  // release dynamically-allocated memory

  delete[] buffer;

  outfile.close();

  infile.close();

  return 0;

}