Question

What is forward reference in C with respect to pointers?

Can I get an example?

Answer 1

See this page on forward references. I don’t see how forward referencing would be different with pointers and with other PoD types.

Note that you can forward declare types, and declare variables which are pointers to that type:

struct MyStruct; struct MyStruct *ptr; struct MyStruct var;  // ILLEGAL ptr->member;  // ILLEGAL  struct MyStruct {     // ... };  // Or:  typedef struct MyStruct MyStruct; MyStruct *ptr; MyStruct var;  // ILLEGAL ptr->member;  // ILLEGAL  struct MyStruct {     // ... }; 

I think this is what you’re asking for when dealing with pointers and forward declaration.