🚀 go-pugleaf

dataman@cyberdude.com wrote:
> 
> 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;
>            }
> }
> 

All your methods (except the direct access) depend
on copying the complete structure. Why not giving
away a pointer to data.

   inline const DATA* GetData() { return &data; };

for accessing, everybody can get a pointer to your structure
but nobody is allowed to change the contents of the structure.

-----------------------------------------------------------
Karl Heinz Buchegger
kbuchegg@gascad.at
++43 7258 7545 23
Fuer sehr grosse Werte von 2 gilt: 2 + 2 = 5