14-13.cpp

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#include<fstream.h>
#include<ctype.h>
main()
{
  fstream in;
  in.open("file1.txt",ios::in);
  if(! in)
  {
    cerr<<"Error open file.";
	return(0);
  }
  fstream out;
  out.open("file2.txt",ios::out);
  if(! out)
  {
    cerr<<"Error open file.";
	return(0);
  }
  char ch;
  while ((ch=in.get())!=EOF)
    out<<char(toupper(ch));
  return 0;
}