Question

I already figured out to use polymorphism and have the list store the pointer to the baseClass, but after successfully placing it there, I would like to know what class the object was originally. I am using templates for the classes, and wanted to have an another field which would be an enum of basic types.

Now the question: is there a way to check (during runtime or during compilation) an

(if T == int)  
   field = INT

I though maybe something with the preprocessor but I’m not familiar with that.

Answer 1

You can use operator typeid.

For example, if T is a pointer to a base class:

if (typeid(SomeDerivedClass) == typeid(*T))
...

(It is somewhat unclear for me why you speak about int in connection with polymorphism. int cannot be derived from.)