#include <iostream>
#include <fstream>
#include <stdlib.h>
int main( void )
{
        char ch;
        std::ifstream fin( "abc.txt" );
        std::ofstream fout( "mmm.txt" );
        if ( ! fin || ! fout ) {
            std::cerr << "Problem opening files\n";
            exit( 1 );
        }
        // The following skips white space:
        // while ( fin >> ch )
        //    fout << ch;
        while ( fin.get( ch ) )
                fout.put( ch );
}