a64l, l64a - convert between a 32-bit integer and a radix-64 ASCII
abort - generate an abnormal process abort
abs - return an integer absolute value
accept - accept a new connection on a socket
access - determine accessibility of a file
acos, acosf, acosl - arc cosine functions
acosh, acoshf, acoshl - inverse hyperbolic cosine functions
acosh, acoshf, acoshl - inverse hyperbolic cosine functions
acosh, acoshf, acoshl - inverse hyperbolic cosine functions
acos, acosf, acosl - arc cosine functions
acos, acosf, acosl - arc cosine functions
aio_cancel - cancel an asynchronous I/O request (REALTIME)
aio_error - retrieve errors status for an asynchronous I/O operation
aio_fsync - asynchronous file synchronization (REALTIME)
aio_read - asynchronous read from a file (REALTIME)
aio_return - retrieve return status of an asynchronous I/O operation
aio_suspend - wait for an asynchronous I/O request (REALTIME)
aio_write - asynchronous write to a file (REALTIME)
alarm - schedule an alarm signal
asctime, asctime_r - convert date and time to a string
asin, asinf, asinl - arc sine function
asinh, asinhf, asinhl - inverse hyperbolic sine functions
asinh, asinhf, asinhl - inverse hyperbolic sine functions
asinh, asinhf, asinhl - inverse hyperbolic sine functions
asin, asinf, asinl - arc sine function
asin, asinf, asinl - arc sine function
assert - insert program diagnostics
atan2, atan2f, atan2l - arc tangent functions
atan2, atan2f, atan2l - arc tangent functions
atan2, atan2f, atan2l - arc tangent functions
atan, atanf, atanl - arc tangent function
atanh, atanhf, atanhl - inverse hyperbolic tangent functions
atanh, atanhf, atanhl - inverse hyperbolic tangent functions
atanh, atanhf, atanhl - inverse hyperbolic tangent functions
atan, atanf, atanl - arc tangent function
atan, atanf, atanl - arc tangent function
atexit - register a function to run at process termination
atof - convert a string to a double-precision number
atoi - convert a string to an integer
atol, atoll - convert a string to a long integer
atol, atoll - convert a string to a long integer
basename - return the last component of a pathname
bcmp - memory operations (LEGACY)
bcopy - memory operations (LEGACY)
bind - bind a name to a socket
bsd_signal - simplified signal facilities
bsearch - binary search a sorted table
btowc - single byte to wide character conversion
bzero - memory operations (LEGACY)
cabs, cabsf, cabsl - return a complex absolute value
cabs, cabsf, cabsl - return a complex absolute value
cabs, cabsf, cabsl - return a complex absolute value
cacos, cacosf, cacosl - complex arc cosine functions
cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
cacos, cacosf, cacosl - complex arc cosine functions
cacos, cacosf, cacosl - complex arc cosine functions
calloc - a memory allocator
carg, cargf, cargl - complex argument functions
carg, cargf, cargl - complex argument functions
carg, cargf, cargl - complex argument functions
casin, casinf, casinl - complex arc sine functions
casinh, casinhf, casinhl - complex arc hyperbolic sine functions
casinh, casinhf, casinhl - complex arc hyperbolic sine functions
casinh, casinhf, casinhl - complex arc hyperbolic sine functions
casin, casinf, casinl - complex arc sine functions
casin, casinf, casinl - complex arc sine functions
catan, catanf, catanl - complex arc tangent functions
catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
catan, catanf, catanl - complex arc tangent functions
catan, catanf, catanl - complex arc tangent functions
catclose - close a message catalog descriptor
catgets - read a program message
catopen - open a message catalog
cbrt, cbrtf, cbrtl - cube root functions
cbrt, cbrtf, cbrtl - cube root functions
cbrt, cbrtf, cbrtl - cube root functions
ccos, ccosf, ccosl - complex cosine functions
ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
ccos, ccosf, ccosl - complex cosine functions
ccos, ccosf, ccosl - complex cosine functions
ceil, ceilf, ceill - ceiling value function
cexp, cexpf, cexpl - complex exponential functions
cexp, cexpf, cexpl - complex exponential functions
cexp, cexpf, cexpl - complex exponential functions
cfgetispeed - get input baud rate
cfgetospeed - get output baud rate
cfsetispeed - set input baud rate
cfsetospeed - set output baud rate
chdir - change working directory
chmod - change mode of a file
chown - change owner and group of a file
cimag, cimagf, cimagl - complex imaginary functions
cimag, cimagf, cimagl - complex imaginary functions
cimag, cimagf, cimagl - complex imaginary functions
clearerr - clear indicators on a stream
clock_getcpuclockid - access a process CPU-time clock (ADVANCED
clock_getres, clock_gettime, clock_settime - clock and timer functions
clock - report CPU time used
clock_nanosleep - high resolution sleep with specifiable clock
clock_getres, clock_gettime, clock_settime - clock and timer functions
clog, clogf, clogl - complex natural logarithm functions
clog, clogf, clogl - complex natural logarithm functions
clog, clogf, clogl - complex natural logarithm functions
closedir - close a directory stream
close - close a file descriptor
confstr - get configurable variables
conj, conjf, conjl - complex conjugate functions
conj, conjf, conjl - complex conjugate functions
conj, conjf, conjl - complex conjugate functions
connect - connect a socket
copysign, copysignf, copysignl - number manipulation function
copysign, copysignf, copysignl - number manipulation function
copysign, copysignf, copysignl - number manipulation function
cos, cosf, cosl - cosine function
cosh, coshf, coshl - hyperbolic cosine functions
cosh, coshf, coshl - hyperbolic cosine functions
cosh, coshf, coshl - hyperbolic cosine functions
cos, cosf, cosl - cosine function
cos, cosf, cosl - cosine function
cpow, cpowf, cpowl - complex power functions
cpow, cpowf, cpowl - complex power functions
cpow, cpowf, cpowl - complex power functions
cproj, cprojf, cprojl - complex projection functions
cproj, cprojf, cprojl - complex projection functions
cproj, cprojf, cprojl - complex projection functions
creal, crealf, creall - complex real functions
creal, crealf, creall - complex real functions
creal, crealf, creall - complex real functions
creat - create a new file or rewrite an existing one
crypt - string encoding function (CRYPT)
csinh, csinhf, csinhl - complex hyperbolic sine functions
csinh, csinhf, csinhl - complex hyperbolic sine functions
csinh, csinhf, csinhl - complex hyperbolic sine functions
csin, csinf, csinl - complex sine functions
csqrt, csqrtf, csqrtl - complex square root functions
csqrt, csqrtf, csqrtl - complex square root functions
csqrt, csqrtf, csqrtl - complex square root functions
ctan, ctanf, ctanl - complex tangent functions
ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
ctan, ctanf, ctanl - complex tangent functions
ctan, ctanf, ctanl - complex tangent functions
ctermid - generate a pathname for the controlling terminal
ctime, ctime_r - convert a time value to a date and time string
ctime, ctime_r - convert a time value to a date and time string
dbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch,
dbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch,
dbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch,
difftime - compute the difference between two calendar time values
dirname - report the parent directory name of a file pathname
div - compute the quotient and remainder of an integer division
dlclose - close a dlopen object
dlerror - get diagnostic information
dlopen - gain access to an executable object file
dlsym - obtain the address of a symbol from a dlopen object
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48,
dup, dup2 - duplicate an open file descriptor
dup, dup2 - duplicate an open file descriptor
ecvt, fcvt, gcvt - convert a floating-point number to a string (LEGACY)
encrypt - encoding function (CRYPT)
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48,
erfc, erfcf, erfcl - complementary error functions
erfc, erfcf, erfcl - complementary error functions
erfc, erfcf, erfcl - complementary error functions
erf, erff, erfl - error functions
erf, erff, erfl - error functions
erf, erff, erfl - error functions
errno - error return value
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
environ, execl, execv, execle, execve, execlp, execvp - execute a file
exit, _Exit, _exit - terminate a process
exp2, exp2f, exp2l - exponential base 2 functions
exp2, exp2f, exp2l - exponential base 2 functions
exp2, exp2f, exp2l - exponential base 2 functions
exp, expf, expl - exponential function
expm1, expm1f, expm1l - compute exponential functions
fabs, fabsf, fabsl - absolute value function
fabs, fabsf, fabsl - absolute value function
fabs, fabsf, fabsl - absolute value function
fattach - attach a STREAMS-based file descriptor to a file in the file
fchdir - change working directory
fchmod - change mode of a file
fchown - change owner and group of a file
fclose - close a stream
fcntl - file control
ecvt, fcvt, gcvt - convert a floating-point number to a string (LEGACY)
fdatasync - synchronize the data of a file (REALTIME)
pselect, select - synchronous I/O multiplexing
fdetach - detach a name from a STREAMS-based file descriptor (STREAMS)
fdim, fdimf, fdiml - compute positive difference between two floating-
fdim, fdimf, fdiml - compute positive difference between two floating-
fdim, fdimf, fdiml - compute positive difference between two floating-
pselect, select - synchronous I/O multiplexing
fdopen - associate a stream with a file descriptor
feclearexcept - clear floating-point exception
fegetenv, fesetenv - get and set current floating-point environment
fegetexceptflag, fesetexceptflag - get and set floating-point status
fegetround, fesetround - get and set current rounding direction
feholdexcept - save current floating-point environment
feof - test end-of-file indicator on a stream
feraiseexcept - raise floating-point exception
ferror - test error indicator on a stream
fegetenv, fesetenv - get and set current floating-point environment
fegetexceptflag, fesetexceptflag - get and set floating-point status
fegetround, fesetround - get and set current rounding direction
fetestexcept - test floating-point exception flags
feupdateenv - update floating-point environment
fflush - flush a stream
ffs - find first set bit
fgetc - get a byte from a stream
fgetpos - get current file position information
fgets - get a string from a stream
fgetwc - get a wide-character code from a stream
fgetws - get a wide-character string from a stream
fileno - map a stream pointer to a file descriptor
flockfile, ftrylockfile, funlockfile - stdio locking functions
floor, floorf, floorl - floor function
floor, floorf, floorl - floor function
floor, floorf, floorl - floor function
fma, fmaf, fmal - floating-point multiply-add
fma, fmaf, fmal - floating-point multiply-add
fma, fmaf, fmal - floating-point multiply-add
fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-
fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-
fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-
fmin, fminf, fminl - determine minimum numeric value of two floating-
fmin, fminf, fminl - determine minimum numeric value of two floating-
fmin, fminf, fminl - determine minimum numeric value of two floating-
fmod, fmodf, fmodl - floating-point remainder value function
fmod, fmodf, fmodl - floating-point remainder value function
fmod, fmodf, fmodl - floating-point remainder value function
fmtmsg - display a message in the specified format on standard error
fnmatch - match a filename or a pathname
fopen - open a stream
fork - create a new process
fpathconf, pathconf - get configurable pathname variables
fpclassify - classify real floating type
fputc - put a byte on a stream
fputs - put a string on a stream
fputwc - put a wide-character code on a stream
fputws - put a wide-character string on a stream
fread - binary input
freeaddrinfo, getaddrinfo - get address information
free - free allocated memory
freopen - open a stream
frexp, frexpf, frexpl - extract mantissa and exponent from a double
frexp, frexpf, frexpl - extract mantissa and exponent from a double
frexp, frexpf, frexpl - extract mantissa and exponent from a double
fseek, fseeko - reposition a file-position indicator in a stream
fseek, fseeko - reposition a file-position indicator in a stream
fsetpos - set current file position
fstat - get file status
fsync - synchronize changes to a file
ftell, ftello - return a file offset in a stream
ftell, ftello - return a file offset in a stream
ftime - get date and time (LEGACY)
ftok - generate an IPC key
ftruncate - truncate a file to a specified length
flockfile, ftrylockfile, funlockfile - stdio locking functions
ftw - traverse (walk) a file tree
flockfile, ftrylockfile, funlockfile - stdio locking functions
fwide - set stream orientation
fwrite - binary output
gai_strerror - address and name information error description
freeaddrinfo, getaddrinfo - get address information
getchar - get a byte from a stdin stream
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
getc - get a byte from a stream
getcontext, setcontext - get and set current user context
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
getcwd - get the pathname of the current working directory
getdate - convert user format date and time
getdate - convert user format date and time
getegid - get the effective group ID
getenv - get value of an environment variable
geteuid - get the effective user ID
getgid - get the real group ID
endgrent, getgrent, setgrent - group database entry functions
getgrgid, getgrgid_r - get group database entry for a group ID
getgrgid, getgrgid_r - get group database entry for a group ID
getgrnam, getgrnam_r - search group database for a name
getgrnam, getgrnam_r - search group database for a name
getgroups - get supplementary group IDs
gethostbyaddr, gethostbyname - network host database functions
endhostent, gethostent, sethostent - network host database functions
gethostid - get an identifier for the current host
gethostname - get name of current host
getitimer, setitimer - get and set value of interval timer
getlogin, getlogin_r - get login name
getmsg, getpmsg - receive next message from a STREAMS file (STREAMS)
getnameinfo - get name information
endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network
getopt, optarg, opterr, optind, optopt - command option parsing
getpeername - get the name of the peer socket
getpgid - get the process group ID for a process
getpgrp - get the process group ID of the calling process
getpid - get the process ID
getmsg, getpmsg - receive next message from a STREAMS file (STREAMS)
getppid - get the parent process ID
getpriority, setpriority - get and set the nice value
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
endpwent, getpwent, setpwent - user database functions
getpwnam, getpwnam_r - search user database for a name
getpwnam, getpwnam_r - search user database for a name
getpwuid, getpwuid_r - search user database for a user ID
getpwuid, getpwuid_r - search user database for a user ID
getrlimit, setrlimit - control maximum resource consumption
getrusage - get information about resource utilization
endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
gets - get a string from a stdin stream
getsid - get the process group ID of a session leader
getsockname - get the socket name
getsockopt - get the socket options
getsubopt - parse suboption arguments from a string
gettimeofday - get the date and time
getuid - get a real user ID
endutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
endutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
getwchar - get a wide character from a stdin stream
getwc - get a wide character from a stream
getwd - get the current working directory pathname (LEGACY)
glob, globfree - generate pathnames matching a pattern
gmtime, gmtime_r - convert a time value to a broken-down UTC time
gmtime, gmtime_r - convert a time value to a broken-down UTC time
grantpt - grant access to the slave pseudo-terminal device
hcreate, hdestroy, hsearch - manage hash search table
h_errno - error return value for network database operations
htonl, htons, ntohl, ntohs - convert values between host and network
htonl, htons, ntohl, ntohs - convert values between host and network
hypot, hypotf, hypotl - Euclidean distance function
hypot, hypotf, hypotl - Euclidean distance function
hypot, hypotf, hypotl - Euclidean distance function
iconv_close - codeset conversion deallocation function
iconv - codeset conversion function
iconv_open - codeset conversion allocation function
if_freenameindex - free memory allocated by if_nameindex
if_indextoname - map a network interface index to its corresponding
if_nameindex - return all network interface names and indexes
if_nametoindex - map a network interface name to its corresponding
ilogb, ilogbf, ilogbl - return an unbiased exponent
ilogb, ilogbf, ilogbl - return an unbiased exponent
ilogb, ilogbf, ilogbl - return an unbiased exponent
imaxabs - return absolute value
imaxdiv - return quotient and remainder
index - character string operations (LEGACY)
inet_addr, inet_ntoa - IPv4 address manipulation
inet_addr, inet_ntoa - IPv4 address manipulation
inet_ntop, inet_pton - convert IPv4 and IPv6 addresses between binary
inet_ntop, inet_pton - convert IPv4 and IPv6 addresses between binary
insque, remque - insert or remove an element in a queue
ioctl - control a STREAMS device (STREAMS)
isalnum - test for an alphanumeric character
isalpha - test for an alphabetic character
isascii - test for a 7-bit US-ASCII character
isastream - test a file descriptor (STREAMS)
isatty - test for a terminal device
isblank - test for a blank character
iscntrl - test for a control character
isdigit - test for a decimal digit
isfinite - test for finite value
isgraph - test for a visible character
isgreaterequal - test if x is greater than or equal to y
isgreater - test if x greater than y
isinf - test for infinity
islessequal - test if x is less than or equal to y
islessgreater - test if x is less than or greater than y
isless - test if x is less than y
islower - test for a lowercase letter
isnan - test for a NaN
isnormal - test for a normal value
isprint - test for a printable character
ispunct - test for a punctuation character
isspace - test for a white-space character
isunordered - test if arguments are unordered
isupper - test for an uppercase letter
iswalnum - test for an alphanumeric wide-character code
iswalpha - test for an alphabetic wide-character code
iswblank - test for a blank wide-character code
iswcntrl - test for a control wide-character code
iswctype - test character for a specified class
iswdigit - test for a decimal digit wide-character code
iswgraph - test for a visible wide-character code
iswlower - test for a lowercase letter wide-character code
iswprint - test for a printable wide-character code
iswpunct - test for a punctuation wide-character code
iswspace - test for a white-space wide-character code
iswupper - test for an uppercase letter wide-character code
iswxdigit - test for a hexadecimal digit wide-character code
isxdigit - test for a hexadecimal digit
j0, j1, jn - Bessel functions of the first kind
j0, j1, jn - Bessel functions of the first kind
j0, j1, jn - Bessel functions of the first kind
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
kill - send a signal to a process or a group of processes
killpg - send a signal to a process group
a64l, l64a - convert between a 32-bit integer and a radix-64 ASCII
labs, llabs - return a long integer absolute value
lchown - change the owner and group of a symbolic link
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
ldexp, ldexpf, ldexpl - load exponent of a floating-point number
ldexp, ldexpf, ldexpl - load exponent of a floating-point number
ldexp, ldexpf, ldexpl - load exponent of a floating-point number
ldiv, lldiv - compute quotient and remainder of a long division
lgamma, lgammaf, lgammal - log gamma function
link - link to a file
lio_listio - list directed I/O (REALTIME)
listen - listen for socket connections and limit the queue of incoming
labs, llabs - return a long integer absolute value
ldiv, lldiv - compute quotient and remainder of a long division
llrint, llrintf, llrintl - round to the nearest integer value using
llrint, llrintf, llrintl - round to the nearest integer value using
llrint, llrintf, llrintl - round to the nearest integer value using
llround, llroundf, llroundl - round to nearest integer value
llround, llroundf, llroundl - round to nearest integer value
llround, llroundf, llroundl - round to nearest integer value
localeconv - return locale-specific information
localtime, localtime_r - convert a time value to a broken-down local
localtime, localtime_r - convert a time value to a broken-down local
lockf - record locking on files
log10, log10f, log10l - base 10 logarithm function
log10, log10f, log10l - base 10 logarithm function
log10, log10f, log10l - base 10 logarithm function
log1p, log1pf, log1pl - compute a natural logarithm
log1p, log1pf, log1pl - compute a natural logarithm
log1p, log1pf, log1pl - compute a natural logarithm
log2, log2f, log2l - compute base 2 logarithm functions
log2, log2f, log2l - compute base 2 logarithm functions
log2, log2f, log2l - compute base 2 logarithm functions
logb, logbf, logbl - radix-independent exponent
logb, logbf, logbl - radix-independent exponent
logb, logbf, logbl - radix-independent exponent
log, logf, logl - natural logarithm function
log, logf, logl - natural logarithm function
log, logf, logl - natural logarithm function
longjmp - non-local goto
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
lrint, lrintf, lrintl - round to nearest integer value using current
lrint, lrintf, lrintl - round to nearest integer value using current
lrint, lrintf, lrintl - round to nearest integer value using current
lround, lroundf, lroundl - round to nearest integer value
lround, lroundf, lroundl - round to nearest integer value
lround, lroundf, lroundl - round to nearest integer value
lsearch, lfind - linear search and update
lseek - move the read/write file offset
lstat - get symbolic link status
makecontext, swapcontext - manipulate user contexts
malloc - a memory allocator
mblen - get number of bytes in a character
mbrlen - get number of bytes in a character (restartable)
mbrtowc - convert a character to a wide-character code (restartable)
mbsinit - determine conversion object status
mbsrtowcs - convert a character string to a wide-character string
mbstowcs - convert a character string to a wide-character string
mbtowc - convert a character to a wide-character code
memccpy - copy bytes in memory
memchr - find byte in memory
memcmp - compare bytes in memory
memcpy - copy bytes in memory
memmove - copy bytes in memory with overlapping areas
memset - set bytes in memory
mkdir - make a directory
mkfifo - make a FIFO special file
mknod - make a directory, a special file, or a regular file
mkstemp - make a unique filename
mktemp - make a unique filename (LEGACY)
mktime - convert broken-down time into time since the Epoch
mlockall, munlockall - lock/unlock the address space of a process
mlock, munlock - lock or unlock a range of process address space
mmap - map pages of memory
modf, modff, modfl - decompose a floating-point number
modf, modff, modfl - decompose a floating-point number
modf, modff, modfl - decompose a floating-point number
mprotect - set protection of memory mapping
mq_close - close a message queue (REALTIME)
mq_getattr - get message queue attributes (REALTIME)
mq_notify - notify process that a message is available (REALTIME)
mq_open - open a message queue (REALTIME)
mq_receive, mq_timedreceive - receive a message from a message queue
mq_send, mq_timedsend - send a message to a message queue (REALTIME)
mq_setattr - set message queue attributes (REALTIME)
mq_receive, mq_timedreceive - receive a message from a message queue
mq_send, mq_timedsend - send a message to a message queue (REALTIME)
mq_unlink - remove a message queue (REALTIME)
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
msgctl - XSI message control operations
msgget - get the XSI message queue identifier
msgrcv - XSI message receive operation
msgsnd - XSI message send operation
msync - synchronize memory with physical storage
mlockall, munlockall - lock/unlock the address space of a process
mlock, munlock - lock or unlock a range of process address space
munmap - unmap pages of memory
nan, nanf, nanl - return quiet NaN
nan, nanf, nanl - return quiet NaN
nan, nanf, nanl - return quiet NaN
nanosleep - high resolution sleep (REALTIME)
nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
nftw - walk a file tree
nice - change the nice value of a process
nl_langinfo - language information
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
htonl, htons, ntohl, ntohs - convert values between host and network
htonl, htons, ntohl, ntohs - convert values between host and network
opendir - open a directory
open - open a file
getopt, optarg, opterr, optind, optopt - command option parsing
getopt, optarg, opterr, optind, optopt - command option parsing
getopt, optarg, opterr, optind, optopt - command option parsing
getopt, optarg, opterr, optind, optopt - command option parsing
fpathconf, pathconf - get configurable pathname variables
pause - suspend the thread until a signal is received
pclose - close a pipe stream to or from a process
perror - write error messages to standard error
pipe - create an interprocess channel
poll - input/output multiplexing
popen - initiate pipe streams to or from a process
posix_fadvise - file advisory information (ADVANCED REALTIME)
posix_fallocate - file space control (ADVANCED REALTIME)
posix_madvise - memory advisory information and alignment control (ADVANCED REALTIME)
posix_memalign - aligned memory allocation (ADVANCED REALTIME)
posix_mem_offset - find offset and length of a mapped typed memory block (ADVANCED REALTIME)
posix_openpt - open a pseudo-terminal device
posix_spawnattr_getflags, posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getpgroup, posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getschedparam, posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_destroy, posix_spawnattr_init - destroy and initialize spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getflags, posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getpgroup, posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getschedparam, posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
posix_spawn_file_actions_addclose, posix_spawn_file_actions_addopen - add close or open action to spawn file actions object (ADVANCED REALTIME)
posix_spawn_file_actions_adddup2 - add dup2 action to spawn file actions object (ADVANCED REALTIME)
posix_spawn_file_actions_addclose, posix_spawn_file_actions_addopen - add close or open action to spawn file actions object (ADVANCED REALTIME)
posix_spawn_file_actions_destroy, posix_spawn_file_actions_init - destroy and initialize spawn file actions object (ADVANCED REALTIME)
posix_spawn, posix_spawnp - spawn a process (ADVANCED REALTIME)
posix_spawn, posix_spawnp - spawn a process (ADVANCED REALTIME)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getclockres, posix_trace_attr_getcreatetime, [...] - retrieve and set information about a trace stream (TRACING)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_destroy, posix_trace_attr_init - destroy and initialize the trace stream attributes object (TRACING)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_attr_getclockres, posix_trace_attr_getcreatetime, [...] - retrieve and set information about a trace stream (TRACING)
posix_trace_attr_getinherited, posix_trace_attr_getlogfullpolicy, [...] - retrieve and set the behavior of a trace stream (TRACING)
posix_trace_attr_getlogsize, posix_trace_attr_getmaxdatasize, [...] - retrieve and set trace stream size attributes (TRACING)
posix_trace_clear - clear trace stream and trace log (TRACING)
posix_trace_create, posix_trace_create_withlog, posix_trace_flush, posix_trace_shutdown - trace stream initialization, flush, and shutdown from a process (TRACING)
posix_trace_create, posix_trace_create_withlog, posix_trace_flush, posix_trace_shutdown - trace stream initialization, flush, and shutdown from a process (TRACING)
posix_trace_event, posix_trace_eventid_open - trace functions for instrumenting application code (TRACING)
posix_trace_eventid_equal, posix_trace_eventid_get_name, -
posix_trace_event, posix_trace_eventid_open - trace functions for
posix_trace_eventset_add, posix_trace_eventset_del, -
posix_trace_eventset_add, posix_trace_eventset_del, -
posix_trace_eventset_add, posix_trace_eventset_del, -
posix_trace_eventset_add, posix_trace_eventset_del, -
posix_trace_eventset_add, posix_trace_eventset_del, -
posix_trace_eventtypelist_getnext_id, posix_trace_eventtypelist_rewind -
posix_trace_create, posix_trace_create_withlog, posix_trace_flush, -
posix_trace_get_filter, posix_trace_set_filter - retrieve and set the
posix_trace_getnext_event, posix_trace_timedgetnext_event, -
posix_trace_get_attr, posix_trace_get_status - retrieve the trace
posix_trace_close, posix_trace_open, posix_trace_rewind - trace log
posix_trace_close, posix_trace_open, posix_trace_rewind - trace log
posix_trace_get_filter, posix_trace_set_filter - retrieve and set the
posix_trace_create, posix_trace_create_withlog, posix_trace_flush, -
posix_trace_start, posix_trace_stop - trace start and stop (TRACING)
posix_trace_start, posix_trace_stop - trace start and stop (TRACING)
posix_trace_getnext_event, posix_trace_timedgetnext_event, -
posix_trace_eventid_equal, posix_trace_eventid_get_name, -
posix_trace_getnext_event, posix_trace_timedgetnext_event, -
posix_typed_mem_get_info - query typed memory information (ADVANCED
posix_typed_mem_open - open a typed memory object (ADVANCED REALTIME)
pow, powf, powl - power function
pow, powf, powl - power function
fprintf, printf, snprintf, sprintf - print formatted output
pthread_atfork - register fork handlers
pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set
pthread_attr_getguardsize, pthread_attr_setguardsize - get and set the
pthread_attr_getinheritsched, pthread_attr_setinheritsched - get and
pthread_attr_getschedparam, pthread_attr_setschedparam - get and set
pthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get and set
pthread_attr_getscope, pthread_attr_setscope - get and set the
pthread_attr_getstackaddr, pthread_attr_setstackaddr - get and set the
pthread_attr_getstack, pthread_attr_setstack - get and set stack
pthread_attr_getstacksize, pthread_attr_setstacksize - get and set the
pthread_attr_destroy, pthread_attr_init - destroy and initialize the
pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set
pthread_attr_getguardsize, pthread_attr_setguardsize - get and set the
pthread_attr_getinheritsched, pthread_attr_setinheritsched - get and
pthread_attr_getschedparam, pthread_attr_setschedparam - get and set
pthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get and set
pthread_attr_getscope, pthread_attr_setscope - get and set the
pthread_attr_getstack, pthread_attr_setstack - get and set stack
pthread_attr_getstacksize, pthread_attr_setstacksize - get and set the
pthread_barrierattr_getpshared, pthread_barrierattr_setpshared - get
pthread_barrierattr_destroy, pthread_barrierattr_init - destroy and
pthread_barrierattr_getpshared, pthread_barrierattr_setpshared - get
pthread_barrier_destroy, pthread_barrier_init - destroy and initialize
pthread_barrier_destroy, pthread_barrier_init - destroy and initialize
pthread_barrier_wait - synchronize at a barrier (ADVANCED REALTIME)
pthread_cancel - cancel execution of a thread
pthread_cleanup_pop, pthread_cleanup_push - establish cancellation
pthread_cleanup_pop, pthread_cleanup_push - establish cancellation
pthread_condattr_destroy, pthread_condattr_init - destroy and
pthread_condattr_getclock, pthread_condattr_setclock - get and set the
pthread_condattr_getpshared, pthread_condattr_setpshared - get and set
pthread_condattr_destroy, pthread_condattr_init - destroy and
pthread_condattr_getclock, pthread_condattr_setclock - get and set the
pthread_condattr_getpshared, pthread_condattr_setpshared - get and set
pthread_cond_destroy, pthread_cond_init - destroy and initialize
pthread_cond_broadcast, pthread_cond_signal - broadcast or signal a
pthread_cond_timedwait, pthread_cond_wait - wait on a condition
pthread_create - thread creation
pthread_detach - detach a thread
pthread_equal - compare thread IDs
pthread_exit - thread termination
pthread_getconcurrency, pthread_setconcurrency - get and set the level
pthread_getcpuclockid - access a thread CPU-time clock (ADVANCED
pthread_getschedparam, pthread_setschedparam - dynamic thread
pthread_getspecific, pthread_setspecific - thread-specific data
pthread_join - wait for thread termination
pthread_key_create - thread-specific data key creation
pthread_key_delete - thread-specific data key deletion
pthread_kill - send a signal to a thread
pthread_mutexattr_getprioceiling, pthread_mutexattr_setprioceiling - -
pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol - get and
pthread_mutexattr_getpshared, pthread_mutexattr_setpshared - get and
pthread_mutexattr_gettype, pthread_mutexattr_settype - get and set the
pthread_mutexattr_destroy, pthread_mutexattr_init - destroy and
pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol - get and
pthread_mutexattr_getpshared, pthread_mutexattr_setpshared - get and
pthread_mutexattr_gettype, pthread_mutexattr_settype - get and set the
pthread_mutex_destroy, pthread_mutex_init - destroy and initialize a
pthread_mutex_getprioceiling, pthread_mutex_setprioceiling - get and
pthread_mutex_destroy, pthread_mutex_init - destroy and initialize a
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock
pthread_mutex_getprioceiling, pthread_mutex_setprioceiling - get and
pthread_mutex_timedlock - lock a mutex (ADVANCED REALTIME)
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock
pthread_once - dynamic package initialization
pthread_rwlockattr_destroy, pthread_rwlockattr_init - destroy and
pthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared - get and
pthread_rwlockattr_destroy, pthread_rwlockattr_init - destroy and
pthread_rwlock_destroy, pthread_rwlock_init - destroy and initialize a
pthread_rwlock_rdlock, pthread_rwlock_tryrdlock - lock a read-write
pthread_rwlock_timedrdlock - lock a read-write lock for reading
pthread_rwlock_timedwrlock - lock a read-write lock for writing
pthread_rwlock_rdlock, pthread_rwlock_tryrdlock - lock a read-write
pthread_rwlock_unlock - unlock a read-write lock object
pthread_rwlock_trywrlock, pthread_rwlock_wrlock - lock a read-write
pthread_self - get the calling thread ID
pthread_getconcurrency, pthread_setconcurrency - get and set the level
pthread_getschedparam, pthread_setschedparam - dynamic thread
pthread_setschedprio - dynamic thread scheduling parameters access
pthread_getspecific, pthread_setspecific - thread-specific data
pthread_spin_destroy, pthread_spin_init - destroy or initialize a spin
pthread_spin_lock, pthread_spin_trylock - lock a spin lock object
pthread_spin_lock, pthread_spin_trylock - lock a spin lock object
pthread_spin_unlock - unlock a spin lock object (ADVANCED REALTIME)
pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel - set
ptsname - get name of the slave pseudo-terminal device
putchar - put a byte on a stdout stream
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - -
putc - put a byte on a stream
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - -
putenv - change or add a value to an environment
putmsg, putpmsg - send a message on a STREAM (STREAMS)
putmsg, putpmsg - send a message on a STREAM (STREAMS)
puts - put a string on standard output
endutxent, getutxent, getutxid, getutxline, pututxline, setutxent - -
putwchar - put a wide character on a stdout stream
putwc - put a wide character on a stream
qsort - sort a table of data
raise - send a signal to the executing process
rand, rand_r, srand - pseudo-random number generator
initstate, random, setstate, srandom - pseudo-random number functions
rand, rand_r, srand - pseudo-random number generator
readdir, readdir_r - read a directory
readdir, readdir_r - read a directory
pread, read - read from a file
readlink - read the contents of a symbolic link
readv - read a vector
realloc - memory reallocator
realpath - resolve a pathname
recvfrom - receive a message from a socket
recv - receive a message from a connected socket
recvmsg - receive a message from a socket
regcomp, regerror, regexec, regfree - regular expression matching
regcomp, regerror, regexec, regfree - regular expression matching
regcomp, regerror, regexec, regfree - regular expression matching
regcomp, regerror, regexec, regfree - regular expression matching
remainder, remainderf, remainderl - remainder function
remainder, remainderf, remainderl - remainder function
remainder, remainderf, remainderl - remainder function
remove - remove a file
insque, remque - insert or remove an element in a queue
remquo, remquof, remquol - remainder functions
remquo, remquof, remquol - remainder functions
remquo, remquof, remquol - remainder functions
rename - rename a file
rewinddir - reset the position of a directory stream to the beginning
rewind - reset the file position indicator in a stream
rindex - character string operations (LEGACY)
rint, rintf, rintl - round-to-nearest integral value
rint, rintf, rintl - round-to-nearest integral value
rint, rintf, rintl - round-to-nearest integral value
rmdir - remove a directory
round, roundf, roundl - round to the nearest integer value in a
round, roundf, roundl - round to the nearest integer value in a
round, roundf, roundl - round to the nearest integer value in a
scalb - load exponent of a radix-independent floating-point number
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute
scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute
fscanf, scanf, sscanf - convert formatted input
sched_getparam - get scheduling parameters (REALTIME)
sched_get_priority_max, sched_get_priority_min - get priority limits
sched_getscheduler - get scheduling policy (REALTIME)
sched_rr_get_interval - get execution time limits (REALTIME)
sched_setparam - set scheduling parameters (REALTIME)
sched_setscheduler - set scheduling policy and parameters (REALTIME)
sched_yield - yield the processor
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, -
seekdir - set the position of a directory stream
pselect, select - synchronous I/O multiplexing
sem_close - close a named semaphore (REALTIME)
semctl - XSI semaphore control operations
sem_destroy - destroy an unnamed semaphore (REALTIME)
semget - get set of XSI semaphores
sem_getvalue - get the value of a semaphore (REALTIME)
sem_init - initialize an unnamed semaphore (REALTIME)
sem_open - initialize and open a named semaphore (REALTIME)
semop - XSI semaphore operations
sem_post - unlock a semaphore (REALTIME)
sem_timedwait - lock a semaphore (ADVANCED REALTIME)
sem_unlink - remove a named semaphore (REALTIME)
sem_trywait, sem_wait - lock a semaphore (REALTIME)
send - send a message on a socket
sendmsg - send a message on a socket using a message structure
sendto - send a message on a socket
setbuf - assign buffering to a stream
getcontext, setcontext - get and set current user context
setegid - set the effective group ID
setenv - add or change environment variable
seteuid - set effective user ID
setgid - set-group-ID
endgrent, getgrent, setgrent - group database entry functions
endhostent, gethostent, sethostent - network host database functions
getitimer, setitimer - get and set value of interval timer
_longjmp, _setjmp - non-local goto
setjmp - set jump point for a non-local goto
setkey - set encoding key (CRYPT)
setlocale - set program locale
endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network
setpgid - set process group ID for job control
setpgrp - set the process group ID
getpriority, setpriority - get and set the nice value
endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent -
endpwent, getpwent, setpwent - user database functions
setregid - set real and effective group IDs
setreuid - set real and effective user IDs
getrlimit, setrlimit - control maximum resource consumption
endservent, getservbyname, getservbyport, getservent, setservent - -
setsid - create session and set process group ID
setsockopt - set the socket options
initstate, random, setstate, srandom - pseudo-random number functions
setuid - set user ID
endutxent, getutxent, getutxid, getutxline, pututxline, setutxent - -
setvbuf - assign buffering to a stream
shmat - XSI shared memory attach operation
shmctl - XSI shared memory control operations
shmdt - XSI shared memory detach operation
shmget - get an XSI shared memory segment
shm_open - open a shared memory object (REALTIME)
shm_unlink - remove a shared memory object (REALTIME)
shutdown - shut down socket send and receive operations
sigaction - examine and change a signal action
sigaddset - add a signal to a signal set
sigaltstack - set and get signal alternate stack context
sigdelset - delete a signal from a signal set
sigemptyset - initialize and empty a signal set
sigfillset - initialize and fill a signal set
siginterrupt - allow signals to interrupt functions
sigismember - test for a signal in a signal set
siglongjmp - non-local goto with signal handling
signal - signal management
signbit - test sign
sigpending - examine pending signals
pthread_sigmask, sigprocmask - examine and change blocked signals
sigqueue - queue a signal to a process (REALTIME)
sighold, sigignore, sigpause, sigrelse, sigset - signal management
sigsetjmp - set jump point for a non-local goto
sigsuspend - wait for a signal
sigwait - wait for queued signals
sigtimedwait, sigwaitinfo - wait for queued signals (REALTIME)
sin, sinf, sinl - sine function
sinh, sinhf, sinhl - hyperbolic sine functions
sinh, sinhf, sinhl - hyperbolic sine functions
sinh, sinhf, sinhl - hyperbolic sine functions
sin, sinf, sinl - sine function
sin, sinf, sinl - sine function
sleep - suspend execution for an interval of time
fprintf, printf, snprintf, sprintf - print formatted output
sockatmark - determine whether a socket is at the out-of-band mark
socket - create an endpoint for communication
socketpair - create a pair of connected sockets
fprintf, printf, snprintf, sprintf - print formatted output
sqrt, sqrtf, sqrtl - square root function
sqrt, sqrtf, sqrtl - square root function
sqrt, sqrtf, sqrtl - square root function
drand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, -
rand, rand_r, srand - pseudo-random number generator
initstate, random, setstate, srandom - pseudo-random number functions
fscanf, scanf, sscanf - convert formatted input
stat - get file status
fstatvfs, statvfs - get file system information
stderr, stdin, stdout - standard I/O streams
stderr, stdin, stdout - standard I/O streams
strcasecmp, strncasecmp - case-insensitive string comparisons
strcat - concatenate two strings
strchr - string scanning operation
strcmp - compare two strings
strcoll - string comparison using collating information
strcpy - copy a string
strcspn - get the length of a complementary substring
strdup - duplicate a string
strerror, strerror_r - get error message string
strerror, strerror_r - get error message string
strfmon - convert monetary value to a string
strftime - convert date and time to a string
strlen - get string length
strcasecmp, strncasecmp - case-insensitive string comparisons
strncat - concatenate a string with part of another
strncmp - compare part of two strings
strncpy - copy part of a string
strpbrk - scan a string for a byte
strptime - date and time conversion
strrchr - string scanning operation
strspn - get length of a substring
strstr - find a substring
strtod, strtof, strtold - convert a string to a double-precision number
strtod, strtof, strtold - convert a string to a double-precision number
strtoimax, strtoumax - convert string to integer type
strtok, strtok_r - split string into tokens
strtok, strtok_r - split string into tokens
strtod, strtof, strtold - convert a string to a double-precision number
strtol, strtoll - convert a string to a long integer
strtol, strtoll - convert a string to a long integer
strtoul, strtoull - convert a string to an unsigned long
strtoul, strtoull - convert a string to an unsigned long
strtoimax, strtoumax - convert string to integer type
strxfrm - string transformation
swab - swap bytes
symlink - make a symbolic link to a file
sync - schedule file system updates
sysconf - get configurable system variables
closelog, openlog, setlogmask, syslog - control system log
system - issue a command
tan, tanf, tanl - tangent function
tanh, tanhf, tanhl - hyperbolic tangent functions
tanh, tanhf, tanhl - hyperbolic tangent functions
tanh, tanhf, tanhl - hyperbolic tangent functions
tan, tanf, tanl - tangent function
tan, tanf, tanl - tangent function
tcdrain - wait for transmission of output
tcflow - suspend or restart the transmission or reception of data
tcflush - flush non-transmitted output data, non-read input data, or
tcgetattr - get the parameters associated with the terminal
tcgetpgrp - get the foreground process group ID
tcgetsid - get the process group ID for the session leader for the
tcsendbreak - send a break for a specific duration
tcsetattr - set the parameters associated with the terminal
tcsetpgrp - set the foreground process group ID
telldir - current location of a named directory stream
tempnam - create a name for a temporary file
tgamma, tgammaf, tgammal - compute gamma() function
tgamma, tgammaf, tgammal - compute gamma() function
tgamma, tgammaf, tgammal - compute gamma() function
time - get time
timer_create - create a per-process timer (REALTIME)
timer_delete - delete a per-process timer (REALTIME)
timer_getoverrun, timer_gettime, timer_settime - per-process timers
timer_getoverrun, timer_gettime, timer_settime - per-process timers
times - get process and waited-for child process times
tmpfile - create a temporary file
tmpnam - create a name for a temporary file
toascii - translate an integer to a 7-bit ASCII character
_tolower - transliterate uppercase characters to lowercase
tolower - transliterate uppercase characters to lowercase
_toupper - transliterate lowercase characters to uppercase
toupper - transliterate lowercase characters to uppercase
towctrans - wide-character transliteration
towlower - transliterate uppercase wide-character code to lowercase
towupper - transliterate lowercase wide-character code to uppercase
truncate - truncate a file to a specified length
trunc, truncf, truncl - round to truncated integer value
trunc, truncf, truncl - round to truncated integer value
trunc, truncf, truncl - round to truncated integer value
tdelete, tfind, tsearch, twalk - manage a binary search tree
ttyname, ttyname_r - find the pathname of a terminal
ttyname, ttyname_r - find the pathname of a terminal
tdelete, tfind, tsearch, twalk - manage a binary search tree
daylight, timezone, tzname, tzset - set timezone conversion information
ualarm - set the interval timer
ulimit - get and set process limits
umask - set and get the file mode creation mask
uname - get the name of the current system
ungetc - push byte back into input stream
ungetwc - push wide-character code back into the input stream
unlink - remove a directory entry
unlockpt - unlock a pseudo-terminal master/slave pair
unsetenv - remove an environment variable
usleep - suspend execution for an interval
utime - set file access and modification times
utimes - set file access and modification times (LEGACY)
va_arg, va_copy, va_end, va_start - handle variable argument list
va_arg, va_copy, va_end, va_start - handle variable argument list
va_arg, va_copy, va_end, va_start - handle variable argument list
va_arg, va_copy, va_end, va_start - handle variable argument list
vfork - create a new process; share virtual memory
vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg
vfscanf, vscanf, vsscanf - format input of a stdarg argument list
vfscanf, vscanf, vsscanf - format input of a stdarg argument list
vfwprintf, vswprintf, vwprintf - wide-character formatted output of a
vfwscanf, vswscanf, vwscanf - wide-character formatted input of a
wait, waitpid - wait for a child process to stop or terminate
waitid - wait for a child process to change state
wait, waitpid - wait for a child process to stop or terminate
wcrtomb - convert a wide-character code to a character (restartable)
wcscat - concatenate two wide-character strings
wcschr - wide-character string scanning operation
wcscmp - compare two wide-character strings
wcscoll - wide-character string comparison using collating information
wcscpy - copy a wide-character string
wcscspn - get the length of a complementary wide substring
wcsftime - convert date and time to a wide-character string
wcslen - get wide-character string length
wcsncat - concatenate a wide-character string with part of another
wcsncmp - compare part of two wide-character strings
wcsncpy - copy part of a wide-character string
wcspbrk - scan a wide-character string for a wide-character code
wcsrchr - wide-character string scanning operation
wcsrtombs - convert a wide-character string to a character string
wcsspn - get the length of a wide substring
wcsstr - find a wide-character substring
wcstod, wcstof, wcstold - convert a wide-character string to a double-
wcstod, wcstof, wcstold - convert a wide-character string to a double-
wcstoimax, wcstoumax - convert a wide-character string to an integer
wcstok - split a wide-character string into tokens
wcstod, wcstof, wcstold - convert a wide-character string to a double-
wcstol, wcstoll - convert a wide-character string to a long integer
wcstol, wcstoll - convert a wide-character string to a long integer
wcstombs - convert a wide-character string to a character string
wcstoul, wcstoull - convert a wide-character string to an unsigned long
wcstoul, wcstoull - convert a wide-character string to an unsigned long
wcswcs - find a wide substring (LEGACY)
wcswidth - number of column positions of a wide-character string
wcsxfrm - wide-character string transformation
wctob - wide-character to single-byte conversion
wctomb - convert a wide-character code to a character
wctrans - define character mapping
wctype - define character class
wcwidth - number of column positions of a wide-character code
wmemchr - find a wide character in memory
wmemcmp - compare wide characters in memory
wmemcpy - copy wide characters in memory
wmemmove - copy wide characters in memory with overlapping areas
wmemset - set wide characters in memory
wordexp, wordfree - perform word expansions
wordexp, wordfree - perform word expansions
fwprintf, swprintf, wprintf - print formatted wide-character output
pwrite, write - write on a file
writev - write a vector
fwscanf, swscanf, wscanf - convert formatted wide-character input
y0, y1, yn - Bessel functions of the second kind
y0, y1, yn - Bessel functions of the second kind
y0, y1, yn - Bessel functions of the second kind