C/C++ overloading

#include <cstdio>

void printMe(int i) {
  printf("%d\n", i);
}

void printMe(const char * str) {
  printf("%s\n", str);
}

typedef struct person_s {
  char const * firstName;
  char const * lastName;
  int yearOfBirth;
} person_t;

typedef struct book_s {
  char const * title;
  person_s const * author;
  int numOfPages;
} book_t;

void printMe(person_t const * person) {
  printf("person.firstName   : %s\n", person->firstName);
  printf("person.lastName    : %s\n", person->lastName);
  printf("person.yearOfBirth : %d\n", person->yearOfBirth);
}

void printMe(book_s const * book) {
  printf("book.title      : %s\n", book->title);
  printf("book.numOfPages : %d\n", book->numOfPages);
  printf("book.author     : \n");
  printMe(book->author);
}

// -----------------
int main() {
  printMe(42);
  printMe("hello");

  person_t johnDoe = { .firstName = "John", .lastName = "Doe",
    .yearOfBirth = 1900 };
  printMe(&johnDoe);

  person_t melville = { .firstName = "Herman", .lastName = "Melville",
    .yearOfBirth = 1819 };
  book_t mobyDick = { .title = "Moby Dick", .author = &melville,
    .numOfPages = 500 };
  printMe(&mobyDick);

  return 0;
}