Classes and Structs

Classes and structs are the same in C++, except the default access of a struct is public, whereas it is private in classes.

Creating Classes/Structs

1. Direct (automatic) instantiation
   • Allocated on the stack
   • Disappear at then end of defining scope (like normal variables)
   • We can access fields with dots

   Coord c {};  
   c.x = 10;  
   c.y = 20;
   

2. Dynamic instantiation
   • className* cPtr= new className;
   • Space allocated on the heap, and persists until deleted by the programmer
   • Use the arrow to access (pointer)

   Coord* p = new Coord {};  
   p->x = 10;  
   p->y = 20;  
   
   delete p;