Is there any way to loop through a struct with elements of different types in C?

Question

my struct is some like this

typedef struct {
  type1 thing;
  type2 thing2;
  ...
  typeN thingN;
} my_struct 

how to enumerate struct chil

Answer 1

There is no safe way to enumerate a struct's members, unless the exact contents of the struct is known, and even in that case you have to be careful of things like struct alignment/padding.

Depending on your problem, it might be safer to have an array of your struct.