Re: How to compare object types in C++?

Several people asked why I was doing this so Ill try to explain:

I have the following Cell class:
class Cell
{
...
    CellType m_type;
}

Where CellType is like this:
class AntigenPresentingCellType : public CellType {};
class DendriticCellType : public AntigenPresentingCellType {};
class MacrophageCellType : public AntigenPresentingCellType {};
class BLymphocyteCellType : public AntigenPresentingCellType {};

class LymphocyteCellType : public CellType {};
class CD4CellType : public LymphocyteCellType {};
class CD8CellType : public LymphocyteCellType {};

class GenericCellType : public CellType {};

Now I can use the type objects to determine easily if a Cell object is
of type CD4 like so:
m_type.IsKindOf(RUNTIME_CLASS(CD4CellType))

or if this same object is a type of LymphocyteCellType, etc.

I liked this because I can use the inheritance of this type with
IsKindOf() to see what class or subclass my objects are in. Way
better than enums.

So now I want to see if I have two cells if cell1.m_type ==
cell2.m_type. I was thinking that I just need to know if cell1.m_type
is an object of the same class as cell2.type.

But maybe my thinking is wrong here and I should not be doing this?

Thoughts?