c++ - class with a pointer member -

class block  {     block *on;     char *name;     bool white;     bool clear;     bool ontable; public:     block(char *nm);     block(const block &ob);     void setname(char *nm);     char *getname() const ;     bool isclear();     void setcolor(int colour);     bool iswhite()const;     bool isontable();     block *geton();     void puton(block &block);     void putontable();     void takefromtable();     void makeclear();     void flipcolor();     void print(); }; 

i have class this. why declaration of *on pointer block *on? don't have write int, float or first? purpose?

block *geton() function out of class declaration this;

block *block::geton() {     return on; } 

i need return on pointer in code. there other way that?

block * on declares on pointer object of type block. when write class definition (in case defining class block), you're inventing a whole new datatype (in case block), describing kind of data contains operations possible.

your geton() code looks correct.