// file:    bcp.C
// author:  Brian Buhman
// date:    17 March 1997
//
// This program copies the file specified in the first of the 
// command line argument to the file specified by the second command 
// line argument.  The idea is to illustrate some simple file I/O.
// Just for fun, I'll make all of the destination file's output 
// uppercase.  Beware!!  The program will overwrite the file listed 
// as the second argument

#include <iostream.h>
#include <fstream.h>
#include <stdio.h>
#include <ctype.h>

// argc number of arguments on the command line, including the exe name.
// argv array of the argument character strings.

int main( int argc, char * argv[] )
{
  if ( argc != 3 )
    {
      cerr << "usage: bcp infile outfile\n";
      exit( -99 );
    }
  
  // open the first arg as the input file.
  ifstream infile( argv[1], ios::in );
  if ( !infile )
    {
      cerr << argv[1] << " could not be opened for reading\n";
      exit( -1 );
    }

  // open the second arg as the output file.
  ofstream outfile( argv[2], ios::out );
  if ( !outfile )
    {
      cerr << argv[2] << " could not be opened for writing\n";
      exit( -1 );
    }
  
  char ch;

  // Keep reading chars until the end of the file is reached.
  
  while ( infile.get( ch ) )
    {
      if ( isalpha( ch ) )
	outfile << (char) toupper( ch );
      else
	outfile << ch;
    }

  // close the files!

  infile.close();
  outfile.close();
  return( 0 );
}