ksys_shmget
err = ksys_shmget(first, (size_t)second, (int)third);
long ksys_shmget(key_t key, size_t size, int shmflg);
return ksys_shmget(key, size, shmflg);
return ksys_shmget(first, second, third);
return ksys_shmget(first, (unsigned int)second, third);