🚀 go-pugleaf

What is the fastest way for  accessing a member  in  a class.

DATA is a structure;

class A
{
  public:
            //directly by having access to the member ?
            DATA data;

            //by return value
            DATA GetData()
            {
              return data;
            }

           //by reference
           void GetData(DATA& d)
           {
              d=data;
           }

           //by pointer
           void GetData(DATA* pD)
           {
            *pData=data;
           }
}

I am programing a real time application (a 3D game) , that access very
often the DATA (several times per second) in the class A .
So, i need the fastest access to it , even if the OOP may suffer (like
accessing directly DATA without  a method) .

You can give me the + and - of every method (speed , memory ..etc.) , so
i can have a best look.

Thank you.

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