27.1. <arpa/inet.h>#

The following methods and variables in <arpa/inet.h> are supported:

• htonl()

• htons()

• inet_ntop()

• inet_pton()

• ntohl()

• ntohs()

27.2. <ctype.h>#

The following methods and variables in <ctype.h> are supported:

• isalnum()

• isalpha()

• isblank()

• iscntrl()

• isdigit()

• isgraph()

• islower()

• isprint()

• ispunct()

• isspace()

• isupper()

• isxdigit()

• tolower()

• toupper()

27.3. <devctl.h>#

The following methods and variables in <devctl.h> are supported:

• posix_devctl()

27.4. <errno.h>#

The following methods and variables in <errno.h> are supported:

• errno

27.5. <math.h>#

The following methods and variables in <math.h> are supported:

• acos()

• acosh()

• asin()

• asinh()

• atan()

• atan2()

• atanh()

• ceil()

• cos()

• cosh()

• exp()

• exp2()

• fabs()

• floor()

• fmod()

• frexp()

• isinf()

• isnan()

• ldexp()

• log()

• log10()

• log2()

• modf()

• pow()

• round()

• sin()

• sinh()

• sqrt()

• tan()

• tanh()

• trunc()

27.6. <netdb.h>#

The following methods and variables in <netdb.h> are supported:

• freeaddrinfo()

• getaddrinfo()

• getnameinfo()

27.7. <pthread.h>#

The following methods and variables in <pthread.h> are supported:

• pthread_attr_destroy()

• pthread_attr_getinheritsched()

• pthread_attr_getschedparam()

• pthread_attr_getschedpolicy()

• pthread_attr_getscope()

• pthread_attr_getstack()

• pthread_attr_init()

• pthread_attr_setinheritsched()

• pthread_attr_setschedparam()

• pthread_attr_setschedpolicy()

• pthread_attr_setscope()

• pthread_attr_setstack()

• pthread_create()

• pthread_equal()

• pthread_getschedparam()

• pthread_mutex_init()

• pthread_mutex_lock()

• pthread_mutex_timedlock()

• pthread_mutex_trylock()

• pthread_mutex_unlock()

• pthread_mutexattr_destroy()

• pthread_mutexattr_getprioceiling()

• pthread_mutexattr_getprotocol()

• pthread_mutexattr_init()

• pthread_mutexattr_setprioceiling()

• pthread_mutexattr_setprotocol()

• pthread_once()

• pthread_self()

• pthread_setschedparam()

• pthread_setschedprio()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

• pthread_getcpuclockid()

27.8. <sched.h>#

The following methods and variables in <sched.h> are supported:

• sched_get_priority_max()

• sched_get_priority_min()

• sched_yield()

27.9. <semaphore.h>#

The following methods and variables in <semaphore.h> are supported:

• sem_close()

• sem_getvalue()

• sem_init()

• sem_open()

• sem_post()

• sem_timedwait()

• sem_trywait()

• sem_wait()

27.10. <signal.h>#

The following methods and variables in <signal.h> are supported:

• pthread_sigmask()

• sigaction()

• sigaddset()

• sigdelset()

• sigemptyset()

• sigfillset()

• sigismember()

• sigpending()

• sigqueue()

• sigsuspend()

• sigtimedwait()

• sigwait()

• sigwaitinfo()

27.11. <stddef.h>#

The following methods and variables in <stddef.h> are supported:

• offsetof()

27.12. <stdint.h>#

The following methods and variables in <stdint.h> are supported:

• INTMAX_C()

• INTN_C()

• UINTMAX_C()

• UINTN_C()

27.13. <stdlib.h>#

The following methods and variables in <stdlib.h> are supported:

• abs()

• atof()

• atoi()

• atol()

• div()

• labs()

• ldiv()

• malloc()

• rand_r()

• strtod()

• strtol()

• strtoul()

27.14. <string.h>#

The following methods and variables in <string.h> are supported:

• memchr()

• memcmp()

• memcpy()

• memmove()

• memset()

• strcat()

• strchr()

• strcmp()

• strcpy()

• strcspn()

• strlen()

• strncat()

• strncmp()

• strncpy()

• strpbrk()

• strrchr()

• strspn()

• strstr()

• strtok_r()

27.15. <sys/mman.h>#

The following methods and variables in <sys/mman.h> are supported:

• mmap()

• shm_open()

27.16. <sys/socket.h>#

The following methods and variables in <sys/socket.h> are supported:

• bind()

• connect()

• getpeername()

• getsockname()

• getsockopt()

• recv()

• recvfrom()

• send()

• sendto()

• setsockopt()

• socket()

27.17. <sys/stat.h>#

The following methods and variables in <sys/stat.h> are supported:

• stat()

27.18. <time.h>#

The following methods and variables in <time.h> are supported:

• clock_getres()

• clock_gettime()

• clock_nanosleep()

• clock_settime()

• nanosleep()

• timer_create()

• timer_getoverrun()

• timer_gettime()

• timer_settime()

27.19. <unistd.h>#

The following methods and variables in <unistd.h> are supported:

• alarm()

• ftruncate()

• pause()