C - freeing structs

Question

Let\'s say I have this struct

typedef struct person{
    char firstName[100], surName[51]
} PERSON;

and I am allocating space by malloc and

Answer 1

This way you only need to free the structure because the fields are arrays with static sizes which will be allocated as part of the structure. This is also the reason that the addresses you see match: the array is the first thing in that structure. If you declared the fields as char * you would have to manually malloc and free them as well.