Programming :: Wrapping Around Functions With Different Return Types?

I have functions which return different data like: int, char*, double...

I also have a list of datatypes (INTEGER, TEXT, REAL...) which can be returned.

I need to map a datatype with function, which purpose is to return it. Therefore, when I determine a datatype, I would like to call the required function without doing switch all the time.

My idea is to have an array of structs like this:

Code:
struct type_func_map
{
int type;
void (*func_wrapper_int)(void); //void (*func_wrapper_text)(void); void (*func_wrapper_real)(void);
};

[Code].....