Next: Past POSIX Function Substitutes, Previous: ISO C and POSIX Header File Substitutes, Up: GNU Gnulib [Contents][Index]
This chapter describes which functions and function-like macros specified by ISO C (including ISO TS 18661-1) or POSIX are substituted by Gnulib, which portability pitfalls are fixed by Gnulib, and which (known) portability problems are not worked around by Gnulib.
The notation “Gnulib module: —” means that Gnulib does not provide a
module providing a substitute for the function. When the list
“Portability problems not fixed by Gnulib” is empty, such a module is
not needed: No portability problems are known. Otherwise, it indicates
that such a module would be useful but is not available: No one so far
found this function important enough to contribute a substitute for it.
If you need this particular function, you may write to
<bug-gnulib at gnu dot org>
.
FD_CLR
FD_ISSET
FD_SET
FD_ZERO
_Exit
_exit
_longjmp
_setjmp
_tolower
_toupper
a64l
abort
abs
accept
access
acos
acosf
acosh
acoshf
acoshl
acosl
aio_cancel
aio_error
aio_fsync
aio_read
aio_return
aio_suspend
aio_write
alarm
aligned_alloc
alphasort
asctime
asctime_r
asin
asinf
asinh
asinhf
asinhl
asinl
assert
atan
atan2
atan2f
atan2l
atanf
atanh
atanhf
atanhl
atanl
atexit
atof
atoi
atol
atoll
basename
bind
bsearch
btowc
c8rtomb
c16rtomb
c32rtomb
cabs
cabsf
cabsl
cacos
cacosf
cacosh
cacoshf
cacoshl
cacosl
calloc
call_once
canonicalize
canonicalizef
canonicalizel
carg
cargf
cargl
casin
casinf
casinh
casinhf
casinhl
casinl
catan
catanf
catanh
catanhf
catanhl
catanl
catclose
catgets
catopen
cbrt
cbrtf
cbrtl
ccos
ccosf
ccosh
ccoshf
ccoshl
ccosl
ceil
ceilf
ceill
cexp
cexpf
cexpl
cfgetispeed
cfgetospeed
cfsetispeed
cfsetospeed
chdir
chmod
chown
cimag
cimagf
cimagl
clearerr
clock
clock_getcpuclockid
clock_getres
clock_gettime
clock_nanosleep
clock_settime
clog
clogf
clogl
close
closedir
closelog
cnd_broadcast
cnd_destroy
cnd_init
cnd_signal
cnd_timedwait
cnd_wait
confstr
conj
conjf
conjl
connect
copysign
copysignf
copysignl
cos
cosf
cosh
coshf
coshl
cosl
cpow
cpowf
cpowl
cproj
cprojf
cprojl
creal
crealf
creall
creat
crypt
csin
csinf
csinh
csinhf
csinhl
csinl
csqrt
csqrtf
csqrtl
ctan
ctanf
ctanh
ctanhf
ctanhl
ctanl
ctermid
ctime
ctime_r
daddl
daylight
dbm_clearerr
dbm_close
dbm_delete
dbm_error
dbm_fetch
dbm_firstkey
dbm_nextkey
dbm_open
dbm_store
ddivl
dfmal
difftime
dirfd
dirname
div
dlclose
dlerror
dlopen
dlsym
dmull
dprintf
drand48
dsqrtl
dsubl
dup
dup2
duplocale
encrypt
endgrent
endhostent
endnetent
endprotoent
endpwent
endservent
endutxent
environ
erand48
erf
erfc
erfcf
erfcl
erff
erfl
errno
execl
execle
execlp
execv
execve
execvp
exit
exp
exp2
exp2f
exp2l
expf
expl
expm1
expm1f
expm1l
fabs
fabsf
fabsl
faccessat
fadd
faddl
fattach
fchdir
fchmod
fchmodat
fchown
fchownat
fclose
fcntl
fdatasync
fdetach
fdim
fdimf
fdiml
fdiv
fdivl
fdopen
fdopendir
feclearexcept
fegetenv
fegetexceptflag
fegetmode
fegetround
feholdexcept
feof
feraiseexcept
ferror
fesetenv
fesetexcept
fesetexceptflag
fesetmode
fesetround
fetestexcept
fetestexceptflag
feupdateenv
fexecve
fflush
ffma
ffmal
ffs
fgetc
fgetpos
fgets
fgetwc
fgetws
fileno
flockfile
floor
floorf
floorl
fma
fmaf
fmal
fmax
fmaxf
fmaximum
fmaximumf
fmaximuml
fmaximum_mag
fmaximum_magf
fmaximum_magl
fmaximum_mag_num
fmaximum_mag_numf
fmaximum_mag_numl
fmaximum_num
fmaximum_numf
fmaximum_numl
fmaxl
fmaxmag
fmaxmagf
fmaxmagl
fmemopen
fmin
fminf
fminimum
fminimumf
fminimuml
fminimum_mag
fminimum_magf
fminimum_magl
fminimum_mag_num
fminimum_mag_numf
fminimum_mag_numl
fminimum_num
fminimum_numf
fminimum_numl
fminl
fminmag
fminmagf
fminmagl
fmod
fmodf
fmodl
fmtmsg
fmul
fmull
fnmatch
fopen
fork
fpathconf
fpclassify
fprintf
fputc
fputs
fputwc
fputws
fread
free
freeaddrinfo
freelocale
freopen
frexp
frexpf
frexpl
fromfp
fromfpf
fromfpl
fromfpx
fromfpxf
fromfpxl
fscanf
fseek
fseeko
fsetpos
fsqrt
fsqrtl
fstat
fstatat
fstatvfs
fsub
fsubl
fsync
ftell
ftello
ftok
ftruncate
ftrylockfile
ftw
funlockfile
futimens
fwide
fwprintf
fwrite
fwscanf
gai_strerror
getaddrinfo
getc
getc_unlocked
getchar
getchar_unlocked
getcwd
getdate
getdate_err
getdelim
getegid
getenv
geteuid
getgid
getgrent
getgrgid
getgrgid_r
getgrnam
getgrnam_r
getgroups
gethostent
gethostid
gethostname
getitimer
getline
getlogin
getlogin_r
getmsg
getnameinfo
getnetbyaddr
getnetbyname
getnetent
getopt
getpayload
getpayloadf
getpayloadl
getpeername
getpgid
getpgrp
getpid
getpmsg
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
getwc
getwchar
glob
globfree
gmtime
gmtime_r
grantpt
hcreate
hdestroy
hsearch
htonl
htons
hypot
hypotf
hypotl
iconv
iconv_close
iconv_open
if_freenameindex
if_indextoname
if_nameindex
if_nametoindex
ilogb
ilogbf
ilogbl
imaxabs
imaxdiv
inet_addr
inet_ntoa
inet_ntop
inet_pton
initstate
insque
ioctl
isalnum
isalnum_l
isalpha
isalpha_l
isascii
isastream
isatty
isblank
isblank_l
iscntrl
iscntrl_l
isdigit
isdigit_l
isfinite
isgraph
isgraph_l
isgreater
isgreaterequal
isinf
isless
islessequal
islessgreater
islower
islower_l
isnan
isnormal
isprint
isprint_l
ispunct
ispunct_l
isspace
isspace_l
isunordered
isupper
isupper_l
iswalnum
iswalnum_l
iswalpha
iswalpha_l
iswblank
iswblank_l
iswcntrl
iswcntrl_l
iswctype
iswctype_l
iswdigit
iswdigit_l
iswgraph
iswgraph_l
iswlower
iswlower_l
iswprint
iswprint_l
iswpunct
iswpunct_l
iswspace
iswspace_l
iswupper
iswupper_l
iswxdigit
iswxdigit_l
isxdigit
isxdigit_l
j0
j1
jn
jrand48
kill
killpg
l64a
labs
lchown
lcong48
ldexp
ldexpf
ldexpl
ldiv
lfind
lgamma
lgammaf
lgammal
link
linkat
lio_listio
listen
llabs
lldiv
llogb
llogbf
llogbl
llrint
llrintf
llrintl
llround
llroundf
llroundl
localeconv
localtime
localtime_r
lockf
log
log10
log10f
log10l
log1p
log1pf
log1pl
log2
log2f
log2l
logb
logbf
logbl
logf
logl
longjmp
lrand48
lrint
lrintf
lrintl
lround
lroundf
lroundl
lsearch
lseek
lstat
malloc
mblen
mbrlen
mbrtoc8
mbrtoc16
mbrtoc32
mbrtowc
mbsinit
mbsnrtowcs
mbsrtowcs
mbstowcs
mbtowc
memccpy
memchr
memcmp
memcpy
memmove
memset
memset_explicit
mkdir
mkdirat
mkdtemp
mkfifo
mkfifoat
mknod
mknodat
mkstemp
mktime
mlock
mlockall
mmap
modf
modff
modfl
mprotect
mq_close
mq_getattr
mq_notify
mq_open
mq_receive
mq_send
mq_setattr
mq_timedreceive
mq_timedsend
mq_unlink
mrand48
msgctl
msgget
msgrcv
msgsnd
msync
mtx_destroy
mtx_init
mtx_lock
mtx_timedlock
mtx_trylock
mtx_unlock
munlock
munlockall
munmap
nan
nanf
nanl
nanosleep
nearbyint
nearbyintf
nearbyintl
newlocale
nextafter
nextafterf
nextafterl
nextdown
nextdownf
nextdownl
nexttoward
nexttowardf
nexttowardl
nextup
nextupf
nextupl
nftw
nice
nl_langinfo
nl_langinfo_l
nrand48
ntohl
ntohs
open
openat
opendir
openlog
open_memstream
open_wmemstream
optarg
opterr
optind
optopt
pathconf
pause
pclose
perror
pipe
poll
popen
posix_fadvise
posix_fallocate
posix_madvise
posix_mem_offset
posix_memalign
posix_openpt
posix_spawn
posix_spawn_file_actions_addclose
posix_spawn_file_actions_adddup2
posix_spawn_file_actions_addopen
posix_spawn_file_actions_destroy
posix_spawn_file_actions_init
posix_spawnattr_destroy
posix_spawnattr_getflags
posix_spawnattr_getpgroup
posix_spawnattr_getschedparam
posix_spawnattr_getschedpolicy
posix_spawnattr_getsigdefault
posix_spawnattr_getsigmask
posix_spawnattr_init
posix_spawnattr_setflags
posix_spawnattr_setpgroup
posix_spawnattr_setschedparam
posix_spawnattr_setschedpolicy
posix_spawnattr_setsigdefault
posix_spawnattr_setsigmask
posix_spawnp
posix_trace_attr_destroy
posix_trace_attr_getclockres
posix_trace_attr_getcreatetime
posix_trace_attr_getgenversion
posix_trace_attr_getinherited
posix_trace_attr_getlogfullpolicy
posix_trace_attr_getlogsize
posix_trace_attr_getmaxdatasize
posix_trace_attr_getmaxsystemeventsize
posix_trace_attr_getmaxusereventsize
posix_trace_attr_getname
posix_trace_attr_getstreamfullpolicy
posix_trace_attr_getstreamsize
posix_trace_attr_init
posix_trace_attr_setinherited
posix_trace_attr_setlogfullpolicy
posix_trace_attr_setlogsize
posix_trace_attr_setmaxdatasize
posix_trace_attr_setname
posix_trace_attr_setstreamfullpolicy
posix_trace_attr_setstreamsize
posix_trace_clear
posix_trace_close
posix_trace_create
posix_trace_create_withlog
posix_trace_event
posix_trace_eventid_equal
posix_trace_eventid_get_name
posix_trace_eventid_open
posix_trace_eventset_add
posix_trace_eventset_del
posix_trace_eventset_empty
posix_trace_eventset_fill
posix_trace_eventset_ismember
posix_trace_eventtypelist_getnext_id
posix_trace_eventtypelist_rewind
posix_trace_flush
posix_trace_get_attr
posix_trace_get_filter
posix_trace_get_status
posix_trace_getnext_event
posix_trace_open
posix_trace_rewind
posix_trace_set_filter
posix_trace_shutdown
posix_trace_start
posix_trace_stop
posix_trace_timedgetnext_event
posix_trace_trid_eventid_open
posix_trace_trygetnext_event
posix_typed_mem_get_info
posix_typed_mem_open
pow
powf
powl
pread
printf
pselect
psiginfo
psignal
pthread_atfork
pthread_attr_destroy
pthread_attr_getdetachstate
pthread_attr_getguardsize
pthread_attr_getinheritsched
pthread_attr_getschedparam
pthread_attr_getschedpolicy
pthread_attr_getscope
pthread_attr_getstack
pthread_attr_getstacksize
pthread_attr_init
pthread_attr_setdetachstate
pthread_attr_setguardsize
pthread_attr_setinheritsched
pthread_attr_setschedparam
pthread_attr_setschedpolicy
pthread_attr_setscope
pthread_attr_setstack
pthread_attr_setstacksize
pthread_barrier_destroy
pthread_barrier_init
pthread_barrier_wait
pthread_barrierattr_destroy
pthread_barrierattr_getpshared
pthread_barrierattr_init
pthread_barrierattr_setpshared
pthread_cancel
pthread_cleanup_pop
pthread_cleanup_push
pthread_cond_broadcast
pthread_cond_destroy
pthread_cond_init
pthread_cond_signal
pthread_cond_timedwait
pthread_cond_wait
pthread_condattr_destroy
pthread_condattr_getclock
pthread_condattr_getpshared
pthread_condattr_init
pthread_condattr_setclock
pthread_condattr_setpshared
pthread_create
pthread_detach
pthread_equal
pthread_exit
pthread_getconcurrency
pthread_getcpuclockid
pthread_getschedparam
pthread_getspecific
pthread_join
pthread_key_create
pthread_key_delete
pthread_kill
pthread_mutex_consistent
pthread_mutex_destroy
pthread_mutex_getprioceiling
pthread_mutex_init
pthread_mutex_lock
pthread_mutex_setprioceiling
pthread_mutex_timedlock
pthread_mutex_trylock
pthread_mutex_unlock
pthread_mutexattr_destroy
pthread_mutexattr_getprioceiling
pthread_mutexattr_getprotocol
pthread_mutexattr_getpshared
pthread_mutexattr_getrobust
pthread_mutexattr_gettype
pthread_mutexattr_init
pthread_mutexattr_setprioceiling
pthread_mutexattr_setprotocol
pthread_mutexattr_setpshared
pthread_mutexattr_setrobust
pthread_mutexattr_settype
pthread_once
pthread_rwlock_destroy
pthread_rwlock_init
pthread_rwlock_rdlock
pthread_rwlock_timedrdlock
pthread_rwlock_timedwrlock
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_setschedprio
pthread_setspecific
pthread_sigmask
pthread_spin_destroy
pthread_spin_init
pthread_spin_lock
pthread_spin_trylock
pthread_spin_unlock
pthread_testcancel
ptsname
putc
putc_unlocked
putchar
putchar_unlocked
putenv
putmsg
putpmsg
puts
pututxline
putwc
putwchar
pwrite
qsort
quick_exit
raise
rand
rand_r
random
read
readdir
readdir_r
readlink
readlinkat
readv
realloc
realpath
recv
recvfrom
recvmsg
regcomp
regerror
regexec
regfree
remainder
remainderf
remainderl
remove
remque
remquo
remquof
remquol
rename
renameat
rewind
rewinddir
rint
rintf
rintl
rmdir
round
roundeven
roundevenf
roundevenl
roundf
roundl
scalbln
scalblnf
scalblnl
scalbn
scalbnf
scalbnl
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
semget
semop
send
sendmsg
sendto
setbuf
setegid
setenv
seteuid
setgid
setgrent
sethostent
setitimer
setjmp
setkey
setlocale
setlogmask
setnetent
setpayload
setpayloadf
setpayloadl
setpayloadsig
setpayloadsigf
setpayloadsigl
setpgid
setpgrp
setpriority
setprotoent
setpwent
setregid
setreuid
setrlimit
setservent
setsid
setsockopt
setstate
setuid
setutxent
setvbuf
shm_open
shm_unlink
shmat
shmctl
shmdt
shmget
shutdown
sigaction
sigaddset
sigaltstack
sigdelset
sigemptyset
sigfillset
sighold
sigignore
siginterrupt
sigismember
siglongjmp
signal
signbit
signgam
sigpause
sigpending
sigprocmask
sigqueue
sigrelse
sigset
sigsetjmp
sigsuspend
sigtimedwait
sigwait
sigwaitinfo
sin
sinf
sinh
sinhf
sinhl
sinl
sleep
snprintf
sockatmark
socket
socketpair
sprintf
sqrt
sqrtf
sqrtl
srand
srand48
srandom
sscanf
stat
statvfs
stdc_bit_ceil
stdc_bit_floor
stdc_bit_width
stdc_count_ones
stdc_count_zeros
stdc_first_leading_one
stdc_first_leading_zero
stdc_first_trailing_one
stdc_first_trailing_zero
stdc_has_single_bit
stdc_leading_ones
stdc_leading_zeros
stdc_trailing_ones
stdc_trailing_zeros
stderr
stdin
stdout
stpcpy
stpncpy
strcasecmp
strcasecmp_l
strcat
strchr
strcmp
strcoll
strcoll_l
strcpy
strcspn
strdup
strerror
strerror_l
strerror_r
strfmon
strfmon_l
strfromd
strfromf
strfroml
strftime
strftime_l
strlcat
strlcpy
strlen
strncasecmp
strncasecmp_l
strncat
strncmp
strncpy
strndup
strnlen
strpbrk
strptime
strrchr
strsignal
strspn
strstr
strtod
strtof
strtoimax
strtok
strtok_r
strtol
strtold
strtoll
strtoul
strtoull
strtoumax
strxfrm
strxfrm_l
swab
swprintf
swscanf
symlink
symlinkat
sync
sysconf
syslog
system
tan
tanf
tanh
tanhf
tanhl
tanl
tcdrain
tcflow
tcflush
tcgetattr
tcgetpgrp
tcgetsid
tcsendbreak
tcsetattr
tcsetpgrp
tdelete
telldir
tempnam
tfind
tgamma
tgammaf
tgammal
thrd_create
thrd_current
thrd_detach
thrd_equal
thrd_exit
thrd_join
thrd_sleep
thrd_yield
time
timegm
timer_create
timer_delete
timer_getoverrun
timer_gettime
timer_settime
times
timespec_getres
timezone
tmpfile
tmpnam
toascii
tolower
tolower_l
totalorder
totalorderf
totalorderl
totalordermag
totalordermagf
totalordermagl
toupper
toupper_l
towctrans
towctrans_l
towlower
towlower_l
towupper
towupper_l
trunc
truncate
truncf
truncl
tsearch
tss_create
tss_delete
tss_get
tss_set
ttyname
ttyname_r
twalk
tzname
tzset
ufromfp
ufromfpf
ufromfpl
ufromfpx
ufromfpxf
ufromfpxl
ulimit
umask
uname
ungetc
ungetwc
unlink
unlinkat
unlockpt
unsetenv
uselocale
utime
utimensat
utimes
va_arg
va_copy
va_end
va_start
vdprintf
vfprintf
vfscanf
vfwprintf
vfwscanf
vprintf
vscanf
vsnprintf
vsprintf
vsscanf
vswprintf
vswscanf
vwprintf
vwscanf
wait
waitid
waitpid
wcpcpy
wcpncpy
wcrtomb
wcscasecmp
wcscasecmp_l
wcscat
wcschr
wcscmp
wcscoll
wcscoll_l
wcscpy
wcscspn
wcsdup
wcsftime
wcslen
wcsncasecmp
wcsncasecmp_l
wcsncat
wcsncmp
wcsncpy
wcsnlen
wcsnrtombs
wcspbrk
wcsrchr
wcsrtombs
wcsspn
wcsstr
wcstod
wcstof
wcstoimax
wcstok
wcstol
wcstold
wcstoll
wcstombs
wcstoul
wcstoull
wcstoumax
wcswidth
wcsxfrm
wcsxfrm_l
wctob
wctomb
wctrans
wctrans_l
wctype
wctype_l
wcwidth
wmemchr
wmemcmp
wmemcpy
wmemmove
wmemset
wordexp
wordfree
wprintf
write
writev
wscanf
y0
y1
yn
Next: Past POSIX Function Substitutes, Previous: ISO C and POSIX Header File Substitutes, Up: GNU Gnulib [Contents][Index]