overload operator<< within a class in c++

Question

I have a class that uses a struct, and I want to overload the << operator for that struct, but only within the class:

typedef struct my_struct_t {
  in         


        

Answer 1

If by "only overloaded in the My_Class" you mean only visible / usable by my class you could use a non-member overload that's only visible to My_Class. E.g.

   struct my_struct {
      int a;
      char c;
   };

   class My_Class
   {
      publiC:
         My_Class();
   }

Then in My_Class.cpp:

namespace {
    ostream& operator(ostream& os, const my_struct& mystruct ) {
         os << mystruct.a << mystruct.c;
    }
}