www.davinpearson.com New Zealanders making it harder to hate computers     Main Menu     Research Projects      Photo Album      Curriculum Vitae   Greatest Artists     Email Address   Computer Games       Web Design          Java Tutorials         Other Links      Debugging Macros String Class I Linked List System I Java for C Programmers Naming Convention String Class II How I use m4 Strings III Symmetrical I/O Linked List System II Run-Time Type Info Virtual Methods An Array System Science & Religion Submodes Nested Packages Memory Leaks Garbage Collection Internet & Poverty What is Knowledge? Limits of Evolution Emacs Additions Function Plotter

#ifndef ALREADY_INCLUDED_RCGCS_BOOL_HH
#define ALREADY_INCLUDED_RCGCS_BOOL_HH

class Bool : public Ref_Count
{
private:
   explicit Bool(bool v) : Ref_Count(DCODE_BOOL)
   {
      this->v = v;
   }

public:
   bool v;

   ///
   /// NOTE: replacement for a constructor prevents "new Bool" from
   /// occurring which might wreck the smart pointer system.
   ///
   static Bool* ctor(bool b)
   {
      return new Bool(b);
   }

   static Bool* ctor()
   {
      return new Bool(0);
   }

   friend bool operator == (const Bool& b1, const Bool& b2)
   {
      if ((&b1 == null) && (&b2 == null)) {
         return true;
      } else if ((&b1 == null) || (&b2 == null)) {
         return false;
      } else {
         return b1.v == b2.v;
      }
   }

   ///
   /// NOTE: apologies for the non-standard I/O system here:
   ///
   friend Writer& operator << (Writer& w, const Bool& b)
   {
      w << (b.v? "true" : "false");
      return w;
   }
};

#endif /* ALREADY_INCLUDED_RCGCS_BOOL_HH */