#define PROTECTED_SPACE '@'
#define PROTECTED_NEWLINE '$'
#define BUFFER_MAX 1000

struct person {
  char *name;
  int age;
  char sex;
};

typedef struct person person;

/* Make and return a person */
person *make_person(const char *name, const int age, const char sex);

/* pretty print person on standard output */
void prnt_person(person *b);

/* print person for storage purposed on ofp */
void print_person(person *p, FILE *ofp);

/* retrieve person from ifp and return a pointer to it */
person *read_peson(FILE *ifp);