Declaring class objects in a header file

Question

Greetings everyone.

I seem to be snagging on a fundimental but I cant find the solution anywhere. Anywho, will go ahead and explain.

I have a program consist

Answer 1

Use extern keyword. Declare these public objects as extern in header, then define instances in one of the cpps.

Like this:

extern SA Obj1; // in header

SA Obj1;// in any one (no more than one) cpp