Table – Remove Virtual Function

The remove function is called to remove a reference to a dictionary entry for the operand of a code, possibly removing the entry if there are no more references to it.  This function is used by the program model dereference function called when program lines are removed or replaced.  This function had to check if the code had an operand (using the is code with operand access function) before the virtual function could be called.

The program model dereference function was modified to use a program line reader instance.  The remove function function was modified to check if the remove function pointer is not null before calling the remove function of the table entry.  By default, for codes without operands, the remove function will do nothing.

The operand argument of the remove virtual functions was changed to a reference to a program line reader instance.  The remove functions were modified to use the program line reader instance to obtain the operand to pass to the desired dictionary to remove the reference to the item.

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