Table of Contents
Note that the core of the Single Unix Specification, Version 3 is also ISO/IEC 9945:2003 and IEEE Std 1003.1-2001 (POSIX.1-2001).
FD_CLR
FD_ISSET
FD_SET
FD_ZERO
_Exit
_exit
_longjmp
_setjmp
_tolower
_toupper
a64l
abort
abs
accept
access
acos
acosf
acosh
acoshf
alarm
asctime
asctime_r
asin
asinf
asinh
asinhf
atan
atan2
atan2f
atanf
atanh
atanhf
atexit
atof
atoff
atoi
atol
atoll
basename
bcmp
bcopy
bind
bsearch
btowc
bzero
cabs
cabsf
calloc
catclose (available in external "catgets" library)
catgets (available in external "catgets" library)
catopen (available in external "catgets" library)
cbrt
cbrtf
ceil
ceilf
cfgetispeed
cfgetospeed
cfsetispeed
cfsetospeed
chdir
chmod
chown
chroot (see chapter "Implementation Notes")
clearerr
clock
clock_getres (see chapter "Implementation Notes")
clock_gettime (see chapter "Implementation Notes")
clock_setres (see chapter "Implementation Notes")
close
closedir
closelog
confstr
connect
copysign
copysignf
cos
cosf
cosh
coshf
creat
crypt (available in external "crypt" library)
ctermid
ctime
ctime_r
daylight
dbm_clearerr (available in external "libgdbm" library)
dbm_close (available in external "libgdbm" library)
dbm_delete (available in external "libgdbm" library)
dbm_error (available in external "libgdbm" library)
dbm_fetch (available in external "libgdbm" library)
dbm_firstkey (available in external "libgdbm" library)
dbm_nextkey (available in external "libgdbm" library)
dbm_open (available in external "libgdbm" library)
dbm_store (available in external "libgdbm" library)
difftime
dirname
div
dlclose
dlerror
dlopen
dlsym
drand48
dup
dup2
ecvt
encrypt (available in external "crypt" library)
endgrent
endhostent
endprotoent
endpwent
endservent
endutxent
environ
erand48
erf
erfc
erfcf
erff
errno
execl
execle
execlp
execv
execve
execvp
exit
exp
exp2
exp2f
expf
expm1
expm1f
fabs
fabsf
fchdir
fchmod
fchown
fclose
fcntl
fcvt
fdatasync
fdim
fdimf
fdopen
feof
ferror
fflush
ffs
fgetc
fgetpos
fgets
fileno
flockfile
floor
floorf
fma
fmaf
fmax
fmaxf
fmin
fminf
fmod
fmodf
fnmatch
fopen
fork
fpathconf
fpclassify (see chapter "Implementation Notes")
fprintf
fputc
fputs
fread
free
freeaddrinfo
freopen
frexp
frexpf
fscanf
fseek
fseeko
fsetpos
fstat
fstatvfs
fsync
ftell
ftello
ftime
ftok
ftruncate
ftrylockfile
ftw
funlockfile
futimes
fwrite
gai_strerror
gcvt
getaddrinfo
getc
getc_unlocked
getchar
getchar_unlocked
getcwd
getdelim
getdomainname
getegid
getenv
geteuid
getgid
getgrent
getgrgid
getgrgid_r
getgrnam
getgrnam_r
getgroups
gethostbyaddr
gethostbyname
gethostid
gethostname
getitimer (see chapter "Implementation Notes")
getlogin
getlogin_r
getnameinfo
getopt
getpeername
getpgid
getpgrp
getpid
getppid
getpriority
getprotobyname
getprotobynumber
getprotoent
getpwent
getpwnam
getpwnam_r
getpwuid
getpwuid_r
getrlimit
getrusage
gets
getservbyname
getservbyport
getservent
getsid
getsockname
getsockopt
getsubopt
gettimeofday
getuid
getutxent
getutxid
getutxline
getwd
glob
globfree
gmtime
gmtime_r
grantpt
h_errno
hcreate
hdestroy
hsearch
hstrerror
htonl
htons
hypot
hypotf
iconv (available in external "libiconv" library)
iconv_close (available in external "libiconv" library)
iconv_open (available in external "libiconv" library)
if_freenameindex
if_indextoname
if_nameindex
if_nametoindex
ilogb
ilogbf
imaxabs
imaxdiv
index
inet_addr
inet_ntoa
inet_ntop
inet_pton
initstate
insque
ioctl
isalnum
isalpha
isascii
isatty
isblank
iscntrl
isdigit
isfinite (see chapter "Implementation Notes")
isgraph
isgreater (see chapter "Implementation Notes")
isgreaterequal (see chapter "Implementation Notes")
isinf (see chapter "Implementation Notes")
isless
islessequal (see chapter "Implementation Notes")
islessgreater (see chapter "Implementation Notes")
islower
isnan (see chapter "Implementation Notes")
isnormal (see chapter "Implementation Notes")
isprint
ispunct
isspace
isunordered (see chapter "Implementation Notes")
isupper
iswalnum
iswalpha
iswblank
iswcntrl
iswctype
iswdigit
iswgraph
iswlower
iswprint
iswpunct
iswspace
iswupper
iswxdigit
isxdigit
j0
j1
jn
jrand48
kill
killpg
l64a
labs
lchown
lcong48
ldexp
ldexpf
ldiv
lfind
lgamma
lgammaf
link
listen
llabs
lldiv
llrint
llrintf
llrintl
localeconv
localtime
localtime_r
lockf
log
log10
log10f
log1p
log1pf
logb
logbf
logf
longjmp
lrand48
lrint
lrintf
lrintl
lround
lroundf
lsearch
lseek
lstat
malloc
mblen
mbrlen
mbrtowc
mbsinit
mbsrtowcs
mbstowcs
mbtowc
memccpy
memchr
memcmp
memcpy
memmove
memset
mkdir
mkfifo
mknod
mkstemp
mktemp
mktime
mlock
mmap
modf
modff
mprotect
mq_close
mq_getattr
mq_notify
mq_open
mq_receive
mq_send
mq_setattr
mq_timedreceive
mq_timedsend
mq_unlink
mrand48
msgctl (see chapter "Implementation Notes")
msgget (see chapter "Implementation Notes")
msgrcv (see chapter "Implementation Notes")
msgsnd (see chapter "Implementation Notes")
msync
munlock
munmap
nan
nanf
nanosleep
nearbyint
nearbyintf
nextafter
nextafterf
nftw
nice
nl_langinfo
nrand48
ntohl
ntohs
open
opendir
openlog
optarg
opterr
optind
optopt
pathconf
pause
pclose
perror
pipe
poll
popen
posix_fadvise
posix_fallocate
posix_madvise
posix_memalign
posix_openpt
pow
powf
pread
printf
pselect
pthread_atfork
pthread_attr_destroy
pthread_attr_getdetachstate
pthread_attr_getinheritsched
pthread_attr_getschedparam
pthread_attr_getschedpolicy
pthread_attr_getscope
pthread_attr_getstacksize
pthread_attr_init
pthread_attr_setdetachstate
pthread_attr_setinheritsched
pthread_attr_setschedparam
pthread_attr_setschedpolicy
pthread_attr_setscope
pthread_attr_setstacksize
pthread_cancel
pthread_cond_broadcast
pthread_cond_destroy
pthread_cond_init
pthread_cond_signal
pthread_cond_timedwait
pthread_cond_wait
pthread_condattr_destroy
pthread_condattr_getpshared
pthread_condattr_init
pthread_condattr_setpshared
pthread_create
pthread_detach
pthread_equal
pthread_exit
pthread_getconcurrency
pthread_getschedparam
pthread_getspecific
pthread_join
pthread_key_create
pthread_key_delete
pthread_kill
pthread_mutex_destroy
pthread_mutex_getprioceiling
pthread_mutex_init
pthread_mutex_lock
pthread_mutex_setprioceiling
pthread_mutex_trylock
pthread_mutex_unlock
pthread_mutexattr_destroy
pthread_mutexattr_getprioceiling
pthread_mutexattr_getprotocol
pthread_mutexattr_getpshared
pthread_mutexattr_gettype
pthread_mutexattr_init
pthread_mutexattr_setprioceiling
pthread_mutexattr_setprotocol
pthread_mutexattr_setpshared
pthread_mutexattr_settype
pthread_once
pthread_rwlock_destroy
pthread_rwlock_init
pthread_rwlock_rdlock
pthread_rwlock_tryrdlock
pthread_rwlock_trywrlock
pthread_rwlock_unlock
pthread_rwlock_wrlock
pthread_rwlockattr_destroy
pthread_rwlockattr_getpshared
pthread_rwlockattr_init
pthread_rwlockattr_setpshared
pthread_self
pthread_setcancelstate
pthread_setcanceltype
pthread_setconcurrency
pthread_setschedparam
pthread_setspecific
pthread_sigmask
pthread_testcancel
ptsname
putc
putc_unlocked
putchar
putchar_unlocked
putenv
puts
pututxline
pwrite
qsort
raise
rand
rand_r
random
read
readdir
readdir_r
readlink
readv
realloc
realpath
recv
recvfrom
recvmsg
regcomp
regerror
regexec
regfree
remainder
remainderf
remove
remque
remquo
remquof
rename
rewind
rewinddir
rindex
rint
rintf
rintl
rmdir
round
roundf
scalb
scalbln
scalblnf
scalbn
scalbnf
scandir
scanf
sched_get_priority_max
sched_get_priority_min
sched_getparam
sched_getscheduler
sched_rr_get_interval
sched_setparam
sched_setscheduler
sched_yield
seed48
seekdir
select
sem_close
sem_destroy
sem_getvalue
sem_init
sem_open
sem_post
sem_timedwait
sem_trywait
sem_unlink
sem_wait
semctl (see chapter "Implementation Notes")
semget (see chapter "Implementation Notes")
semop (see chapter "Implementation Notes")
send
sendmsg
sendto
setbuf
setegid
setenv
seteuid
setgid
setgrent
sethostent
setitimer (see chapter "Implementation Notes")
setjmp
setkey (available in external "crypt" library)
setlocale
setlogmask
setpgid
setpgrp
setpriority
setprotoent
setpwent
setregid
setreuid
setrlimit
setservent
setsid
setsockopt
setstate
setuid
setutxent
setvbuf
shm_open
shm_unlink
shmat (see chapter "Implementation Notes")
shmctl (see chapter "Implementation Notes")
shmdt (see chapter "Implementation Notes")
shmget (see chapter "Implementation Notes")
shutdown
sigaction
sigaddset
sigdelset
sigemptyset
sigfillset
sighold
sigignore
siginterrupt
sigismember
siglongjmp
signal
signbit (see chapter "Implementation Notes")
signgam
sigpause
sigpending
sigprocmask
sigqueue
sigrelse
sigset
sigsetjmp
sigsuspend
sigwait
sigwaitinfo
sin
sinf
sinh
sinhf
sleep
snprintf
socket
socketpair
sprintf
sqrt
sqrtf
srand
srand48
srandom
sscanf
stat
statvfs
stderr
stdin
stdout
strcasecmp
strcat
strchr
strcmp
strcoll
strcpy
strcspn
strdup
strerror
strerror_r
strftime
strlen
strncasecmp
strncat
strncmp
strncpy
strpbrk
strptime
strrchr
strspn
strstr
strtod
strtof
strtoimax
strtok
strtok_r
strtol
strtoll
strtoul
strtoull
strtoumax
strxfrm
swab
symlink
sync
sysconf
syslog
system
tan
tanf
tanh
tanhf
tcdrain
tcflow
tcflush
tcgetattr
tcgetpgrp
tcsendbreak
tcsetattr
tcsetpgrp
tdelete
telldir
tempnam
tfind
tgamma
tgammaf
time
timer_create
timer_delete
timer_gettime
timer_settime
times
timezone
tmpfile
tmpnam
toascii
tolower
toupper
towctrans
towlower
towupper
trunc
truncate
truncf
tsearch
ttyname
ttyname_r
twalk
tzname
tzset
ualarm
umask
uname
ungetc
unlink
unlockpt
unsetenv
usleep
utime
utimes
va_arg
va_copy
va_end
va_start
vfork (see chapter "Implementation Notes")
vfprintf
vfscanf
vprintf
vscanf
vsnprintf
vsprintf
vsscanf
wait
waitpid
wcrtomb
wcscat
wcschr
wcscmp
wcscoll
wcscpy
wcscspn
wcslen
wcsncat
wcsncmp
wcsncpy
wcspbrk
wcsrchr
wcsrtombs
wcsspn
wcsstr
wcstol
wcstoll
wcstombs
wcstoul
wcstoull
wcswidth
wcsxfrm
wctob
wctomb
wctrans
wctype
wcwidth
wmemchr
wmemcmp
wmemcpy
wmemmove
wmemset
wprintf
write
writev
y0
y1
yn