(TYPE *)array_concat((const void *)(A), (An), (const void *)(B), (Bn), sizeof(TYPE));

void *array_concat(const void *a, size_t an,
                   const void *b, size_t bn, size_t s)
{
  char *p = malloc(s * (an + bn));
  memcpy(p, a, an*s);
  memcpy(p + an*s, b, bn*s);
  return p;
}


const int a[] = { 1, 2, 3, 4, 5 };
const int b[] = { 6, 7, 8, 9, 0 };

int main(void)
{
  unsigned int i;

  int *c = ARRAY_CONCAT(int, a, 5, b, 5);

  for(i = 0; i < 10; i++)
    printf(, c[i]);

  free(c);
  return EXIT_SUCCCESS;
}