Question

Let’s say I have a function in C++ that can return either a pointer to either an int, string, or double. What would be the return type for this function?

I would also like a variable that can store that return value once the function returns it. Should I just use the same type for that?

Answer 1

The only match is void*.

 void* pResult = foo();

To use the value later, you will have to cast to int*, string* or double*. So you need to keep track of the actual type in some way.