How can I replicate the above behavior

[IgazHarcos]

Hello c++.com!

I used Game Maker, but the limitations anoyying, so I decided to switch to c++. There is great tutorials, and I can replicate most of the behavior, but I lack the knowledge to do two things:

1. How GM can make variables story any type?
2. How ds_grid-s working (they are similar to 2D arrays, but can hold any type of value and vary in size dinamically)

Is there anybody, who know, how I can do this?

Thanks for your help!

[Golden Lizard]

1. templates, unions or void pointers

template<typename T>
class wrapper
{
   public:
      //ctors, dctor, functions and overloaded operators
   private:
      T data;
};

union variable
{
    int short _int_16;
    int long  _int_32;
    int long long _int_64_;
    float decimal;
    double _d_decimal;
    char character;
    wchar_t wide_character;
};

int number=new int(500);
void * ptr=number; //can point to any variable 

2. vectors (dynamic arrays)

std::vector<int> numbers;
numbers.push_back(50); //adds number in the vector 

[IgazHarcos]

Thanks for the quick answer.
I'll look into it, uninons and vectors are not new ,but never used them, but void pointers are entirelly new!

Thanks for your help again!

[mbozzi]

Templates should be strongly preferred over unions and void pointers.