MemoryCell.h - MemoryCell class interface (Fig 1.20)
	
	#ifndef MEMORY_CELL_H
        #define MEMORY_CELL_H

        /**
         * A class for simulating a memory cell.
         */
        template <class Object>
        class MemoryCell
        {
          public:
            explicit MemoryCell( const Object & initialValue = Object( ) );
            const Object & read( ) const;
            void write( const Object & x );
          private:
            Object storedValue;
        };

        #include "MemoryCell.cpp"  // Because sep. compilation doesn't always work

        #endif
