Function that "returns" an array of structs

things.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

struct Thing { char *name; };

void get_things(int *number_of_things, struct Thing **things)
{
  int num = 10;
  struct Thing *tmp = malloc(sizeof(struct Thing) * num);

  for (int i = 0; i < num; i++) {
    tmp[i].name = malloc(sizeof(char) * 8);
    sprintf(tmp[i].name, "Hello #%d", i);
  }

  *things = tmp;
  *number_of_things = num;
}

int main(int argc, const char *argv[])
{
  struct Thing *things;
  int number_of_things;
  get_things(&number_of_things, &things);

  for (int i = 0; i < number_of_things; i++) {
    printf("%s\n", things[i].name);
    free(things[i].name);
  }

  free(things);
  return 0;
}