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Function Classes and Objects

  • Overload operator ()
  • Any parameters suitable for functions may be used
  • Any return value suitable for functions may be used
  • Class may have other methods and/or data -- "smart" functions
  • Example:
  • class MakeUpperCase
    {
      public:
        void operator () (char& c) const  // operator name
        {
          c = toupper(c);
        }
    } ;
    

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