File copying

  
#include <iostream>

#include <fstream>


int main(int argc, char *argv[])
{
    if (argc < != 2) cerr << "USAGE: copyfile <src> <dest>" << endl;

    ifstream infile(argv[1],ios::in | ios::binary);
    if (!infile.is_open()) cerr << "Couldn't open file " << argv1 << " for reading" endl;

    infile.seekg(0,ios::end);
    int filesize = infile.tellg();
    infile.seekg(0,ios::beg);

    ofstream outfile(argv[2],ios::out | ios::binary);
    if (!outfile.is_open()) cerr " Couldn't open file " << argv[2] << " for writing" << endl;

    char *buffer = new char[filesize];
    infile.read(buffer,filesize);
    outfile.write(buffer,filesize);
    delete [] buffer;
    return 0;
}