Communication between objects in C++ -

i have 2 classes , b defines follows:

class {     public:     void *connector; };  class b {     public:     void *connector1;     void *connector2; }; 

to start, let assume create 3 objects c1, c2 , c3 based on these classes,

a c1; b c2; c3; 

and use following code connect them

c1.connector = &c2; c2.connector1 = &c1; c2.connector2 = &c3; c3.connector = &c2; 

so @ moment have this: c1 <-> c2 <-> c3 (first example).

important: reason using void pointers inside classes because cannot predict right start how objects connect. example,the answer question should valid if create fourth object , make these connections (c1 , c2 same before):

b c3;     c4;  c1.connector = &c2; c2.connector1 = &c1; c2.connector2 = &c3; c3.connector1 = &c2; c3.connector2 = &c4; c4.connector = &c3; 

which corresponds c1 <-> c2 <-> c3 <-> c4 (second example).

i tried , searched everywhere simple solution implement communication between these objects. there several questions same name not find similarity between asked , respective answers problem trying solve. maybe because not approaching correctly right start. anyway, communication mean simple way c2 can call method in c1 , vice versa.

1) tried templates not figure out how it. classes templates , seamed contrived , complicated (hard read, maintain , implement).

2) tried use casting of pointers since don't know right form start class connect not it.

important: although cannot warranty connections can live fact that, example, object of class b knows name of method execute in object connected connectors.

to make clear, let assume introduce method

int get_value();  

in both class , class b (but implementation different in each class). so, in second example above, c2 may call on c1 , c3 may call method on c2. note c2 , c3 objects of same class.

ok, explained problem, ask simple solution communication in problem. example, working piece of code implements communication between c2 , c1 between c3 , c2 (see example 2 above).

to specific think example in object c2/c3 can call get_value method in c1/c2, such c2/c3 can store value in private/public variable perfect.

i realize way trying implement may not best , answers solve problem on different approach welcome. if possible please show me code , little explanation because main target , expertise not programming skills.

thank in advance.

basically, void* isn't way go.

one alternative approach use inhertiance:

class obj  { public:       virtual string getvalue()=0;  };  class : public obj  { public:     obj *connector;     string getvalue(); };  class b : public obj { public:     obj *connector1;     obj *connector2;     string getvalue(); }; 

the objects "communicate" refering common members of base obj class.

c1.connector->getvalue();  c1.connector->connector2->getvalue();