How many bytes will sizeof return on structs? Why are they bigger than their real size?

How do I share structure types among several files in a program?

Can there be a “hole” at the beginning of a structure?

Why isn’t == a valid operator on 2 Compatible structs?

Why does C provide Tags & typedef to name structure types?

Can a structure have a typedef definition while having a tag?

Is it legal to pass pointers to struct compound literals to function calls?

Can values of an enumerated type be used as Subscripts for arrays?