rtti & virtual

[chameleon]

Is there a way to avoid this ugly rtti?
integer dimension needed in make().

class Relation
{
   void make() { ..... ; if (dimensions() == 2) .... ; ..... }
   virtual int dimensions() = 0;
};

class Relation1D : public Relation
{
   virtual int dimensions() { return 1; }
};

class Relation2D : public Relation
{
   virtual int dimensions() { return 2; }
};

.........

[Peter87]

I don't know what you mean. Do you want to get rid of the virtual functions? In that case why not store dimensions a member variable that you set to whatever you want it to be?

[helios]

Can you give more details about what you need Relation to do? Just from what you've posted, there doesn't seem to be any need for inheritance at all, here.

[chameleon]

Ooops...
Yeah you right.
What I am thinking?