PRODUCT  :  Borland C++                           NUMBER  :  1544
  VERSION  :  All
       OS  :  All
     DATE  :  October 25, 1993                         PAGE  :  1/2

    TITLE  :  Creating an ostream manipulator





  // Making an ostream manipulator with BC 3.1 (works for
  // previous C++ compilers as well)

  #include <iomanip.h>
  #include <iostream.h>

  typedef char * charptr;

  // the function that will be called for the title() manipulator

  ostream& makeTitle(ostream& os, charptr string)
  {
      return os << "Dr. " << string << " (PhD)";
  }

  // get a declaration for charptr (we can't simply use char *
  // because the space in that type name would confuse the
  // macro pasting.)

  IOMANIPdeclare(charptr);

  OMANIP(charptr) title(charptr string)
  {
      return OMANIP(charptr) (makeTitle, string);
  }

  // if the manipulator doesn't take any parameters, we don't
  // need to pass anything back to a separate function, so it's
  // a good deal simpler.

  ostream& greet(ostream &os)
  {
      return os << "Good Day, ";
  }

  int main()
  {
      cout << greet << title("Doolittle") ;
      return 0;
  }















  PRODUCT  :  Borland C++                           NUMBER  :  1544
  VERSION  :  All
       OS  :  All
     DATE  :  October 25, 1993                         PAGE  :  2/2

    TITLE  :  Creating an ostream manipulator




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