[c++] Looking for a way to create a "uni variable"

[Samael88]

As the title says, I am looking for a way to create an "uni variable".

kind of that works like this:

int integer = 0;
char character = a;
uni univar[2];

univar[0] = integer;
univar[1] = character;

I don't believe that there is a variable which I can do this with, but it would be nice to know a way to do so, any suggestions?

 

[Lyerae]

So you want to create a variable of variables?

 

[Samael88]

So you want to create a variable of variables?

Not really, just a way to put different types of variables in the same list or array^^

I could put them into a 2d char array, but I wanted to know if there is an easier way to do it first^^

I need it so that I can make a system to easier save and load data from files.
I want to be able to just point to the necessary variables and then the system does the rest with as few commands as possible

 

[Romek]

Use the 'object' type instead?
Click (.NET)

 

[Darthfett]

Not really, just a way to put different types of variables in the same list or array^^

I could put them into a 2d char array, but I wanted to know if there is an easier way to do it first^^

I need it so that I can make a system to easier save and load data from files.
I want to be able to just point to the necessary variables and then the system does the rest with as few commands as possible

I don't know if there's a native way, but...

class Uni {};

class Int extends Uni {

    private:
        int which

    public:
        Int(char whichInt) {which = whichInt;}

};

class Char extends Uni{

    private:
        char which

    public:
        Char(char whichChar) {which = whichChar;}

};

Char character = Character('b');
Int integer = Int(4);
Uni univar[2];

univar[0] = character;
univar[1] = integer;

Seems like it would be the proper method of doing it.

 

[TheDamien]

The simplest solution is to use a tagged union.

struct Uni {
   union {
      char charValue;
      int intValue;
      bool boolValue;
   };

   enum {
      CHAR,
      BOOL,
      INT,
   } tag;
};

/* 

Uni uni;

uni.tag = Uni::BOOL;
uni.boolValue = true;

uni.tag = Uni::INT;
uni.intValue = 42;

*/