Arto's Notes re: macOS

Missing POSIX Features

  • [POSIX.1-2008] Directory-relative operations: fdopendir(3), openat(2), etc.
  • [POSIX.1-2008] Memory streams: fmemopen(3), open_memstream(3)
  • [POSIX.1-2001] Message queues: mq_open(3), mq_send(3), mq_receive(3), etc.
  • [POSIX.1-2001] Unnamed semaphores: sem_init(3), sem_destroy(3)

Missing GNU Features

  • fopencookie(3) (substitute funopen(3) instead)