musl vs posix api

commit

commit ea9525c8bcf6170df59364c4bcd616de1acf8703
Date: 2019-10-13 17:58:27 -0400

release 1.1.24

legend

(STREAMS and posix_trace* apis are excluded)

table

muslposix
statussymdeclnameheaderoptiondesc
  d FD_CLR sys/select.h pselect, select - synchronous I/O multiplexing
  d FD_ISSET sys/select.h pselect, select - synchronous I/O multiplexing
  d FD_SET sys/select.h pselect, select - synchronous I/O multiplexing
  d FD_ZERO sys/select.h pselect, select - synchronous I/O multiplexing
 Tp _Exit stdlib.h _Exit, _exit - terminate a process
 Tp _exit unistd.h _Exit, _exit - terminate a process
 Tp _longjmp setjmp.h OB XSI_longjmp, _setjmp - non-local goto
 Tp _setjmp setjmp.h OB XSI_longjmp, _setjmp - non-local goto
  d _tolower ctype.h OB XSI_tolower - transliterate uppercase characters to lowercase
  d _toupper ctype.h OB XSI_toupper - transliterate lowercase characters to uppercase
 Tp a64l stdlib.h XSIa64l, l64a - convert between a 32-bit integer and a radix-64 ASCII string
 Tp abort stdlib.h abort - generate an abnormal process abort
 Tp abs stdlib.h abs - return an integer absolute value
 Tp accept sys/socket.h accept - accept a new connection on a socket
 Tp access unistd.h access, faccessat - determine accessibility of a file relative to directory file descriptor
 Tp d d acos math.h acos, acosf, acosl - arc cosine functions
 Tp acosf math.h acos, acosf, acosl - arc cosine functions
 Tp d d acosh math.h acosh, acoshf, acoshl - inverse hyperbolic cosine functions
 Tp acoshf math.h acosh, acoshf, acoshl - inverse hyperbolic cosine functions
 Tp acoshl math.h acosh, acoshf, acoshl - inverse hyperbolic cosine functions
 Tp acosl math.h acos, acosf, acosl - arc cosine functions
 Tp aio_cancel aio.h aio_cancel - cancel an asynchronous I/O request
 Tp aio_error aio.h aio_error - retrieve errors status for an asynchronous I/O operation
 Tp aio_fsync aio.h aio_fsync - asynchronous file synchronization
 Tp aio_read aio.h aio_read - asynchronous read from a file
 Tp aio_return aio.h aio_return - retrieve return status of an asynchronous I/O operation
 Tp aio_suspend aio.h aio_suspend - wait for an asynchronous I/O request
 Tp aio_write aio.h aio_write - asynchronous write to a file
 Tp alarm unistd.h alarm - schedule an alarm signal
 Tp alphasort dirent.h alphasort, scandir - scan a directory
 Tp asctime time.h OBasctime, asctime_r - convert date and time to a string
 Wp asctime_r time.h OB CXasctime, asctime_r - convert date and time to a string
 Tp d d asin math.h asin, asinf, asinl - arc sine function
 Tp asinf math.h asin, asinf, asinl - arc sine function
 Tp d d asinh math.h asinh, asinhf, asinhl - inverse hyperbolic sine functions
 Tp asinhf math.h asinh, asinhf, asinhl - inverse hyperbolic sine functions
 Tp asinhl math.h asinh, asinhf, asinhl - inverse hyperbolic sine functions
 Tp asinl math.h asin, asinf, asinl - arc sine function
  d d d assert assert.h assert - insert program diagnostics
 Tp d d atan math.h atan, atanf, atanl - arc tangent function
 Tp d d atan2 math.h atan2, atan2f, atan2l - arc tangent functions
 Tp atan2f math.h atan2, atan2f, atan2l - arc tangent functions
 Tp atan2l math.h atan2, atan2f, atan2l - arc tangent functions
 Tp atanf math.h atan, atanf, atanl - arc tangent function
 Tp d d atanh math.h atanh, atanhf, atanhl - inverse hyperbolic tangent functions
 Tp atanhf math.h atanh, atanhf, atanhl - inverse hyperbolic tangent functions
 Tp atanhl math.h atanh, atanhf, atanhl - inverse hyperbolic tangent functions
 Tp atanl math.h atan, atanf, atanl - arc tangent function
 Tp atexit stdlib.h atexit - register a function to run at process termination
 Tp atof stdlib.h atof - convert a string to a double-precision number
 Tp atoi stdlib.h atoi - convert a string to an integer
 Tp atol stdlib.h atol, atoll - convert a string to a long integer
 Tp atoll stdlib.h atol, atoll - convert a string to a long integer
 Tp p basename libgen.h XSIbasename - return the last component of a pathname
 Tp bind sys/socket.h bind - bind a name to a socket
 Tp bsearch stdlib.h bsearch - binary search a sorted table
 Tp btowc stdio.h wchar.h btowc - single byte to wide character conversion
 Tp cabs complex.h cabs, cabsf, cabsl - return a complex absolute value
 Tp cabsf complex.h cabs, cabsf, cabsl - return a complex absolute value
 Tp cabsl complex.h cabs, cabsf, cabsl - return a complex absolute value
 Tp cacos complex.h cacos, cacosf, cacosl - complex arc cosine functions
 Tp cacosf complex.h cacos, cacosf, cacosl - complex arc cosine functions
 Tp cacosh complex.h cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
 Tp cacoshf complex.h cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
 Tp cacoshl complex.h cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions
 Tp cacosl complex.h cacos, cacosf, cacosl - complex arc cosine functions
 TWp p p calloc stdlib.h calloc - a memory allocator
 Tp d d carg complex.h carg, cargf, cargl - complex argument functions
 Tp cargf complex.h carg, cargf, cargl - complex argument functions
 Tp cargl complex.h carg, cargf, cargl - complex argument functions
 Tp casin complex.h casin, casinf, casinl - complex arc sine functions
 Tp casinf complex.h casin, casinf, casinl - complex arc sine functions
 Tp casinh complex.h casinh, casinhf, casinhl - complex arc hyperbolic sine functions
 Tp casinhf complex.h casinh, casinhf, casinhl - complex arc hyperbolic sine functions
 Tp casinhl complex.h casinh, casinhf, casinhl - complex arc hyperbolic sine functions
 Tp casinl complex.h casin, casinf, casinl - complex arc sine functions
 Tp catan complex.h catan, catanf, catanl - complex arc tangent functions
 Tp catanf complex.h catan, catanf, catanl - complex arc tangent functions
 Tp catanh complex.h catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
 Tp catanhf complex.h catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
 Tp catanhl complex.h catanh, catanhf, catanhl - complex arc hyperbolic tangent functions
 Tp catanl complex.h catan, catanf, catanl - complex arc tangent functions
 Tp catclose nl_types.h catclose - close a message catalog descriptor
 Tp catgets nl_types.h catgets - read a program message
 Tp catopen nl_types.h catopen - open a message catalog
 Tp d d cbrt math.h cbrt, cbrtf, cbrtl - cube root functions
 Tp cbrtf math.h cbrt, cbrtf, cbrtl - cube root functions
 Tp cbrtl math.h cbrt, cbrtf, cbrtl - cube root functions
 Tp ccos complex.h ccos, ccosf, ccosl - complex cosine functions
 Tp ccosf complex.h ccos, ccosf, ccosl - complex cosine functions
 Tp ccosh complex.h ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
 Tp ccoshf complex.h ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
 Tp ccoshl complex.h ccosh, ccoshf, ccoshl - complex hyperbolic cosine functions
 Tp ccosl complex.h ccos, ccosf, ccosl - complex cosine functions
 Tp d d ceil math.h ceil, ceilf, ceill - ceiling value function
 Tp ceilf math.h ceil, ceilf, ceill - ceiling value function
 Tp ceill math.h ceil, ceilf, ceill - ceiling value function
 Tp cexp complex.h cexp, cexpf, cexpl - complex exponential functions
 Tp cexpf complex.h cexp, cexpf, cexpl - complex exponential functions
 Tp cexpl complex.h cexp, cexpf, cexpl - complex exponential functions
 Tp cfgetispeed termios.h cfgetispeed - get input baud rate
 Tp cfgetospeed termios.h cfgetospeed - get output baud rate
 Tp cfsetispeed termios.h cfsetispeed - set input baud rate
 Tp cfsetospeed termios.h cfsetospeed - set output baud rate
 Tp chdir unistd.h chdir - change working directory
 Tp chmod sys/stat.h chmod, fchmodat - change mode of a file relative to directory file descriptor
 Tp chown unistd.h chown, fchownat - change owner and group of a file relative to directory file descriptor
 Td p d d cimag complex.h cimag, cimagf, cimagl - complex imaginary functions
 Td p cimagf complex.h cimag, cimagf, cimagl - complex imaginary functions
 Td p cimagl complex.h cimag, cimagf, cimagl - complex imaginary functions
 Tp clearerr stdio.h clearerr - clear indicators on a stream
 Tp clock time.h clock - report CPU time used
 Tp clock_getcpuclockid time.h CPTclock_getcpuclockid - access a process CPU-time clock (ADVANCED REALTIME)
 Tp clock_getres time.h CXclock_getres, clock_gettime, clock_settime - clock and timer functions
 Wp clock_gettime time.h CXclock_getres, clock_gettime, clock_settime - clock and timer functions
 Wp clock_nanosleep time.h CXclock_nanosleep - high resolution sleep with specifiable clock
 Tp clock_settime time.h CXclock_getres, clock_gettime, clock_settime - clock and timer functions
 Tp clog complex.h clog, clogf, clogl - complex natural logarithm functions
 Tp clogf complex.h clog, clogf, clogl - complex natural logarithm functions
 Tp clogl complex.h clog, clogf, clogl - complex natural logarithm functions
 Tp close unistd.h close - close a file descriptor
 Tp closedir dirent.h closedir - close a directory stream
 Tp closelog syslog.h XSIcloselog, openlog, setlogmask, syslog - control system log
 Tp confstr unistd.h confstr - get configurable variables
 Tp d d conj complex.h conj, conjf, conjl - complex conjugate functions
 Tp conjf complex.h conj, conjf, conjl - complex conjugate functions
 Tp conjl complex.h conj, conjf, conjl - complex conjugate functions
 Tp connect sys/socket.h connect - connect a socket
 Tp d d copysign math.h copysign, copysignf, copysignl - number manipulation function
 Tp copysignf math.h copysign, copysignf, copysignl - number manipulation function
 Tp copysignl math.h copysign, copysignf, copysignl - number manipulation function
 Tp d d cos math.h cos, cosf, cosl - cosine function
 Tp cosf math.h cos, cosf, cosl - cosine function
 Tp d d cosh math.h cosh, coshf, coshl - hyperbolic cosine functions
 Tp coshf math.h cosh, coshf, coshl - hyperbolic cosine functions
 Tp coshl math.h cosh, coshf, coshl - hyperbolic cosine functions
 Tp cosl math.h cos, cosf, cosl - cosine function
 Tp cpow complex.h cpow, cpowf, cpowl - complex power functions
 Tp cpowf complex.h cpow, cpowf, cpowl - complex power functions
 Tp cpowl complex.h cpow, cpowf, cpowl - complex power functions
 Tp d d cproj complex.h cproj, cprojf, cprojl - complex projection functions
 Tp cprojf complex.h cproj, cprojf, cprojl - complex projection functions
 Tp cprojl complex.h cproj, cprojf, cprojl - complex projection functions
 Td p d d creal complex.h creal, crealf, creall - complex real functions
 Td p crealf complex.h creal, crealf, creall - complex real functions
 Td p creall complex.h creal, crealf, creall - complex real functions
 Tp creat sys/stat.h fcntl.h OHcreat - create a new file or rewrite an existing one
 Tp p crypt unistd.h XSIcrypt - string encoding function (CRYPT)
 Tp csin complex.h csin, csinf, csinl - complex sine functions
 Tp csinf complex.h csin, csinf, csinl - complex sine functions
 Tp csinh complex.h csinh, csinhf, csinhl - complex hyperbolic sine functions
 Tp csinhf complex.h csinh, csinhf, csinhl - complex hyperbolic sine functions
 Tp csinhl complex.h csinh, csinhf, csinhl - complex hyperbolic sine functions
 Tp csinl complex.h csin, csinf, csinl - complex sine functions
 Tp csqrt complex.h csqrt, csqrtf, csqrtl - complex square root functions
 Tp csqrtf complex.h csqrt, csqrtf, csqrtl - complex square root functions
 Tp csqrtl complex.h csqrt, csqrtf, csqrtl - complex square root functions
 Tp ctan complex.h ctan, ctanf, ctanl - complex tangent functions
 Tp ctanf complex.h ctan, ctanf, ctanl - complex tangent functions
 Tp ctanh complex.h ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
 Tp ctanhf complex.h ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
 Tp ctanhl complex.h ctanh, ctanhf, ctanhl - complex hyperbolic tangent functions
 Tp ctanl complex.h ctan, ctanf, ctanl - complex tangent functions
 Tp p ctermid stdio.h CXctermid - generate a pathname for the controlling terminal
 Tp ctime time.h OBctime, ctime_r - convert a time value to a date and time string
 Tp ctime_r time.h OB CXctime, ctime_r - convert a time value to a date and time string
 Vx daylight time.h XSIdaylight, timezone, tzname, tzset - set timezone conversion information
missing  dbm_clearerr ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_close ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_delete ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_error ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_fetch ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_firstkey ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_nextkey ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_open ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
missing  dbm_store ndbm.h XSIdbm_clearerr, dbm_close, dbm_delete, dbm_error, dbm_fetch, dbm_firstkey, dbm_nextkey, dbm_open, dbm_store - database functions
 Tp difftime time.h difftime - compute the difference between two calendar time values
 Tp dirfd dirent.h dirfd - extract the file descriptor used by a DIR stream
 Tp dirname libgen.h XSIdirname - report the parent directory name of a file pathname
 Tp div stdlib.h div - compute the quotient and remainder of an integer division
 Tp dlclose dlfcn.h dlclose - close a dlopen object
 Tp dlerror dlfcn.h dlerror - get diagnostic information
 Wp dlopen dlfcn.h dlopen - gain access to an executable object file
 Tp dlsym dlfcn.h dlsym - obtain the address of a symbol from a dlopen object
 Tp dprintf stdio.h CXdprintf, fprintf, printf, snprintf, sprintf - print formatted output
 Tp drand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp dup unistd.h dup, dup2 - duplicate an open file descriptor
 Tp dup2 unistd.h dup, dup2 - duplicate an open file descriptor
 Wp duplocale locale.h CXduplocale - duplicate a locale object
 Tp encrypt unistd.h XSIencrypt - encoding function (CRYPT)
 Wp endgrent grp.h XSIendgrent, getgrent, setgrent - group database entry functions
 Tp endhostent netdb.h endhostent, gethostent, sethostent - network host database functions
 Wp endnetent netdb.h endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network database functions
 Tp endprotoent netdb.h endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
 Wp endpwent pwd.h XSIendpwent, getpwent, setpwent - user database functions
 Tp endservent netdb.h endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
 Tp endutxent utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Vx environ unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp erand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp d d erf math.h erf, erff, erfl - error functions
 Tp d d erfc math.h erfc, erfcf, erfcl - complementary error functions
 Tp erfcf math.h erfc, erfcf, erfcl - complementary error functions
 Tp erfcl math.h erfc, erfcf, erfcl - complementary error functions
 Tp erff math.h erf, erff, erfl - error functions
 Tp erfl math.h erf, erff, erfl - error functions
  d errno errno.h errno - error return value
 Tp execl unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp execle unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp execlp unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp execv unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp execve unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp execvp unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp exit stdlib.h exit - terminate a process
 Tp d d exp math.h exp, expf, expl - exponential function
 Tp d d exp2 math.h exp2, exp2f, exp2l - exponential base 2 functions
 Tp exp2f math.h exp2, exp2f, exp2l - exponential base 2 functions
 Tp exp2l math.h exp2, exp2f, exp2l - exponential base 2 functions
 Tp expf math.h exp, expf, expl - exponential function
 Tp expl math.h exp, expf, expl - exponential function
 Tp d d expm1 math.h expm1, expm1f, expm1l - compute exponential functions
 Tp expm1f math.h expm1, expm1f, expm1l - compute exponential functions
 Tp expm1l math.h expm1, expm1f, expm1l - compute exponential functions
 Tp d d fabs math.h fabs, fabsf, fabsl - absolute value function
 Tp fabsf math.h fabs, fabsf, fabsl - absolute value function
 Tp fabsl math.h fabs, fabsf, fabsl - absolute value function
 Tp faccessat unistd.h access, faccessat - determine accessibility of a file relative to directory file descriptor
 Tp fchdir unistd.h fchdir - change working directory
 Tp fchmod sys/stat.h fchmod - change mode of a file
 Tp fchmodat sys/stat.h chmod, fchmodat - change mode of a file relative to directory file descriptor
 Tp fchown unistd.h fchown - change owner and group of a file
 Tp fchownat unistd.h chown, fchownat - change owner and group of a file relative to directory file descriptor
 Tp fclose stdio.h fclose - close a stream
 Tp fcntl fcntl.h fcntl - file control
 Tp fdatasync unistd.h SIOfdatasync - synchronize the data of a file (REALTIME)
 Tp d d fdim math.h fdim, fdimf, fdiml - compute positive difference between two floating-point numbers
 Tp fdimf math.h fdim, fdimf, fdiml - compute positive difference between two floating-point numbers
 Tp fdiml math.h fdim, fdimf, fdiml - compute positive difference between two floating-point numbers
 Wp fdopen stdio.h CXfdopen - associate a stream with a file descriptor
 Tp fdopendir dirent.h fdopendir, opendir - open directory associated with file descriptor
 Tp feclearexcept fenv.h feclearexcept - clear floating-point exception
 Tp fegetenv fenv.h fegetenv, fesetenv - get and set current floating-point environment
 Tp fegetexceptflag fenv.h fegetexceptflag, fesetexceptflag - get and set floating-point status flags
 Tp fegetround fenv.h fegetround, fesetround - get and set current rounding direction
 Tp feholdexcept fenv.h feholdexcept - save current floating-point environment
 Tp feof stdio.h feof - test end-of-file indicator on a stream
 Tp feraiseexcept fenv.h feraiseexcept - raise floating-point exception
 Tp ferror stdio.h ferror - test error indicator on a stream
 Tp fesetenv fenv.h fegetenv, fesetenv - get and set current floating-point environment
 Tp fesetexceptflag fenv.h fegetexceptflag, fesetexceptflag - get and set floating-point status flags
 Tp fesetround fenv.h fegetround, fesetround - get and set current rounding direction
 Tp fetestexcept fenv.h fetestexcept - test floating-point exception flags
 Tp feupdateenv fenv.h feupdateenv - update floating-point environment
 Tp fexecve unistd.h environ, execl, execle, execlp, execv, execve, execvp, fexecve - execute a file
 Tp fflush stdio.h fflush - flush a stream
 Tp ffs strings.h XSIffs - find first set bit
 Tp fgetc stdio.h fgetc - get a byte from a stream
 Tp fgetpos stdio.h fgetpos - get current file position information
 Tp fgets stdio.h fgets - get a string from a stream
 Tp fgetwc stdio.h wchar.h fgetwc - get a wide-character code from a stream
 Tp fgetws stdio.h wchar.h fgetws - get a wide-character string from a stream
 Tp fileno stdio.h CXfileno - map a stream pointer to a file descriptor
 Tp flockfile stdio.h CXflockfile, ftrylockfile, funlockfile - stdio locking functions
 Tp d d floor math.h floor, floorf, floorl - floor function
 Tp floorf math.h floor, floorf, floorl - floor function
 Tp floorl math.h floor, floorf, floorl - floor function
 Tp d d fma math.h fma, fmaf, fmal - floating-point multiply-add
 Tp fmaf math.h fma, fmaf, fmal - floating-point multiply-add
 Tp fmal math.h fma, fmaf, fmal - floating-point multiply-add
 Tp d d fmax math.h fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-point numbers
 Tp fmaxf math.h fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-point numbers
 Tp fmaxl math.h fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-point numbers
 Tp fmemopen stdio.h CXfmemopen - open a memory buffer stream
 Tp d d fmin math.h fmin, fminf, fminl - determine minimum numeric value of two floating-point numbers
 Tp fminf math.h fmin, fminf, fminl - determine minimum numeric value of two floating-point numbers
 Tp fminl math.h fmin, fminf, fminl - determine minimum numeric value of two floating-point numbers
 Tp d d fmod math.h fmod, fmodf, fmodl - floating-point remainder value function
 Tp fmodf math.h fmod, fmodf, fmodl - floating-point remainder value function
 Tp fmodl math.h fmod, fmodf, fmodl - floating-point remainder value function
 Tp fmtmsg fmtmsg.h XSIfmtmsg - display a message in the specified format on standard error and/or a system console
 Tp fnmatch fnmatch.h fnmatch - match a filename or a pathname
 Tp fopen stdio.h fopen - open a stream
 Tp fork unistd.h fork - create a new process
 Tp fpathconf unistd.h fpathconf, pathconf - get configurable pathname variables
  d fpclassify math.h fpclassify - classify real floating type
 Tp fprintf stdio.h dprintf, fprintf, printf, snprintf, sprintf - print formatted output
 Tp fputc stdio.h fputc - put a byte on a stream
 Tp fputs stdio.h fputs - put a string on a stream
 Tp fputwc stdio.h wchar.h fputwc - put a wide-character code on a stream
 Tp fputws stdio.h wchar.h fputws - put a wide-character string on a stream
 Tp fread stdio.h fread - binary input
 Tp p p free stdlib.h free - free allocated memory
 Tp freeaddrinfo sys/socket.h netdb.h freeaddrinfo, getaddrinfo - get address information
 Tp freelocale locale.h CXfreelocale - free resources allocated for a locale object
 Tp freopen stdio.h freopen - open a stream
 Tp d d frexp math.h frexp, frexpf, frexpl - extract mantissa and exponent from a double precision number
 Tp frexpf math.h frexp, frexpf, frexpl - extract mantissa and exponent from a double precision number
 Tp frexpl math.h frexp, frexpf, frexpl - extract mantissa and exponent from a double precision number
 Tp fscanf stdio.h fscanf, scanf, sscanf - convert formatted input
 Tp fseek stdio.h fseek, fseeko - reposition a file-position indicator in a stream
 Wp fseeko stdio.h CXfseek, fseeko - reposition a file-position indicator in a stream
 Tp fsetpos stdio.h fsetpos - set current file position
 Tp fstat sys/stat.h fstat - get file status
 Tp fstatat sys/stat.h fstatat, lstat, stat - get file status
 Tp fstatvfs sys/statvfs.h fstatvfs, statvfs - get file system information
 Tp fsync unistd.h FSCfsync - synchronize changes to a file
 Tp ftell stdio.h ftell, ftello - return a file offset in a stream
 Wp ftello stdio.h CXftell, ftello - return a file offset in a stream
 Tp ftok sys/ipc.h XSIftok - generate an IPC key
 Tp ftruncate unistd.h ftruncate - truncate a file to a specified length
 Tp ftrylockfile stdio.h CXflockfile, ftrylockfile, funlockfile - stdio locking functions
 Tp ftw ftw.h OB XSIftw - traverse (walk) a file tree
 Tp funlockfile stdio.h CXflockfile, ftrylockfile, funlockfile - stdio locking functions
 Tp futimens sys/stat.h futimens, utimensat, utimes - set file access and modification times
 Tp fwide stdio.h wchar.h fwide - set stream orientation
 Tp fwprintf stdio.h wchar.h fwprintf, swprintf, wprintf - print formatted wide-character output
 Tp fwrite stdio.h fwrite - binary output
 Tp fwscanf stdio.h wchar.h fwscanf, swscanf, wscanf - convert formatted wide-character input
 Tp gai_strerror netdb.h gai_strerror - address and name information error description
 Tp getaddrinfo sys/socket.h netdb.h freeaddrinfo, getaddrinfo - get address information
 Tp getc stdio.h getc - get a byte from a stream
 Tp getc_unlocked stdio.h CXgetc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
 Tp getchar stdio.h getchar - get a byte from a .I stdin stream
 Tp getchar_unlocked stdio.h CXgetc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
 Tp getcwd unistd.h getcwd - get the pathname of the current working directory
 Tp getdate time.h XSIgetdate - convert user format date and time
 Cx getdate_err time.h XSIgetdate - convert user format date and time
 Tp getdelim stdio.h CXgetdelim, getline - read a delimited record from .I stream
 Tp getegid unistd.h getegid - get the effective group ID
 Tp getenv stdlib.h getenv - get value of an environment variable
 Tp geteuid unistd.h geteuid - get the effective user ID
 Tp getgid unistd.h getgid - get the real group ID
 Tp getgrent grp.h XSIendgrent, getgrent, setgrent - group database entry functions
 Tp getgrgid grp.h getgrgid, getgrgid_r - get group database entry for a group ID
 Tp getgrgid_r grp.h getgrgid, getgrgid_r - get group database entry for a group ID
 Tp getgrnam grp.h getgrnam, getgrnam_r - search group database for a name
 Tp getgrnam_r grp.h getgrnam, getgrnam_r - search group database for a name
 Tp getgroups unistd.h getgroups - get supplementary group IDs
 Tp gethostent netdb.h endhostent, gethostent, sethostent - network host database functions
 Tp gethostid unistd.h XSIgethostid - get an identifier for the current host
 Tp gethostname unistd.h gethostname - get name of current host
 Tp getitimer sys/time.h OB XSIgetitimer, setitimer - get and set value of interval timer
 Tp getline stdio.h CXgetdelim, getline - read a delimited record from .I stream
 Tp getlogin unistd.h getlogin, getlogin_r - get login name
 Tp getlogin_r unistd.h getlogin, getlogin_r - get login name
 Tp getnameinfo sys/socket.h netdb.h getnameinfo - get name information
 Tp getnetbyaddr netdb.h endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network database functions
 Tp getnetbyname netdb.h endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network database functions
 Tp getnetent netdb.h endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network database functions
 Tp p getopt unistd.h getopt, optarg, opterr, optind, optopt - command option parsing
 Tp getpeername sys/socket.h getpeername - get the name of the peer socket
 Tp getpgid unistd.h getpgid - get the process group ID for a process
 Tp getpgrp unistd.h getpgrp - get the process group ID of the calling process
 Tp getpid unistd.h getpid - get the process ID
 Tp getppid unistd.h getppid - get the parent process ID
 Tp getpriority sys/resource.h XSIgetpriority, setpriority - get and set the nice value
 Tp getprotobyname netdb.h endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
 Tp getprotobynumber netdb.h endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
 Tp getprotoent netdb.h endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
 Tp getpwent pwd.h XSIendpwent, getpwent, setpwent - user database functions
 Tp getpwnam pwd.h getpwnam, getpwnam_r - search user database for a name
 Tp getpwnam_r pwd.h getpwnam, getpwnam_r - search user database for a name
 Tp getpwuid pwd.h getpwuid, getpwuid_r - search user database for a user ID
 Tp getpwuid_r pwd.h getpwuid, getpwuid_r - search user database for a user ID
 Tp getrlimit sys/resource.h XSIgetrlimit, setrlimit - control maximum resource consumption
 Tp getrusage sys/resource.h XSIgetrusage - get information about resource utilization
 Tp gets stdio.h OBgets - get a string from a .I stdin stream
 Tp getservbyname netdb.h endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
 Tp getservbyport netdb.h endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
 Tp getservent netdb.h endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
 Tp getsid unistd.h getsid - get the process group ID of a session leader
 Tp getsockname sys/socket.h getsockname - get the socket name
 Tp getsockopt sys/socket.h getsockopt - get the socket options
 Tp getsubopt stdlib.h getsubopt - parse suboption arguments from a string
 Tp gettimeofday sys/time.h OB XSIgettimeofday - get the date and time
 Tp getuid unistd.h getuid - get a real user ID
 Tp getutxent utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Tp getutxid utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Tp getutxline utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Tp getwc stdio.h wchar.h getwc - get a wide character from a stream
 Tp getwchar wchar.h getwchar - get a wide character from a .I stdin stream
 Tp glob glob.h glob, globfree - generate pathnames matching a pattern
 Tp globfree glob.h glob, globfree - generate pathnames matching a pattern
 Tp gmtime time.h gmtime, gmtime_r - convert a time value to a broken-down UTC time
 Wp gmtime_r time.h CXgmtime, gmtime_r - convert a time value to a broken-down UTC time
 Tp grantpt stdlib.h XSIgrantpt - grant access to the slave pseudo-terminal device
 Tp hcreate search.h XSIhcreate, hdestroy, hsearch - manage hash search table
 Tp hdestroy search.h XSIhcreate, hdestroy, hsearch - manage hash search table
 Tp hsearch search.h XSIhcreate, hdestroy, hsearch - manage hash search table
 Tp p htonl arpa/inet.h htonl, htons, ntohl, ntohs - convert values between host and network byte order
 Tp p htons arpa/inet.h htonl, htons, ntohl, ntohs - convert values between host and network byte order
 Tp d d hypot math.h hypot, hypotf, hypotl - Euclidean distance function
 Tp hypotf math.h hypot, hypotf, hypotl - Euclidean distance function
 Tp hypotl math.h hypot, hypotf, hypotl - Euclidean distance function
 Tp iconv iconv.h iconv - codeset conversion function
 Tp iconv_close iconv.h iconv_close - codeset conversion deallocation function
 Tp iconv_open iconv.h iconv_open - codeset conversion allocation function
 Tp if_freenameindex net/if.h if_freenameindex - free memory allocated by if_nameindex
 Tp if_indextoname net/if.h if_indextoname - map a network interface index to its corresponding name
 Tp if_nameindex net/if.h if_nameindex - return all network interface names and indexes
 Tp if_nametoindex net/if.h if_nametoindex - map a network interface name to its corresponding index
 Tp d d ilogb math.h ilogb, ilogbf, ilogbl - return an unbiased exponent
 Tp ilogbf math.h ilogb, ilogbf, ilogbl - return an unbiased exponent
 Tp ilogbl math.h ilogb, ilogbf, ilogbl - return an unbiased exponent
 Tp imaxabs inttypes.h imaxabs - return absolute value
 Tp imaxdiv inttypes.h imaxdiv - return quotient and remainder
 Tp inet_addr arpa/inet.h inet_addr, inet_ntoa - IPv4 address manipulation
 Tp inet_ntoa arpa/inet.h inet_addr, inet_ntoa - IPv4 address manipulation
 Tp inet_ntop arpa/inet.h inet_ntop, inet_pton - convert IPv4 and IPv6 addresses between binary and text form
 Tp inet_pton arpa/inet.h inet_ntop, inet_pton - convert IPv4 and IPv6 addresses between binary and text form
 Tp initstate stdlib.h XSIinitstate, random, setstate, srandom - pseudo-random number functions
 Tp insque search.h XSIinsque, remque - insert or remove an element in a queue
 Tp isalnum ctype.h isalnum, isalnum_l - test for an alphanumeric character
 Wp isalnum_l ctype.h CXisalnum, isalnum_l - test for an alphanumeric character
 Td p isalpha ctype.h isalpha, isalpha_l - test for an alphabetic character
 Wp isalpha_l ctype.h CXisalpha, isalpha_l - test for an alphabetic character
 Td p isascii ctype.h OB XSIisascii - test for a 7-bit US-ASCII character
 Tp isatty unistd.h isatty - test for a terminal device
 Tp isblank ctype.h isblank, isblank_l - test for a blank character
 Wp isblank_l ctype.h CXisblank, isblank_l - test for a blank character
 Tp iscntrl ctype.h iscntrl, iscntrl_l - test for a control character
 Wp iscntrl_l ctype.h CXiscntrl, iscntrl_l - test for a control character
 Td p isdigit ctype.h isdigit, isdigit_l - test for a decimal digit
 Wp isdigit_l ctype.h CXisdigit, isdigit_l - test for a decimal digit
  d isfinite math.h isfinite - test for finite value
 Td p isgraph ctype.h isgraph, isgraph_l - test for a visible character
 Wp isgraph_l ctype.h CXisgraph, isgraph_l - test for a visible character
  d isgreater math.h isgreater - test if x greater than y
  d isgreaterequal math.h isgreaterequal - test if x is greater than or equal to y
  d isinf math.h isinf - test for infinity
  d isless math.h isless - test if x is less than y
  d islessequal math.h islessequal - test if x is less than or equal to y
  d islessgreater math.h islessgreater - test if x is less than or greater than y
 Td p islower ctype.h islower, islower_l - test for a lowercase letter
 Wp islower_l ctype.h CXislower, islower_l - test for a lowercase letter
  d isnan math.h isnan - test for a NaN
  d isnormal math.h isnormal - test for a normal value
 Td p isprint ctype.h isprint, isprint_l - test for a printable character
 Wp isprint_l ctype.h CXisprint, isprint_l - test for a printable character
 Tp ispunct ctype.h ispunct, ispunct_l - test for a punctuation character
 Wp ispunct_l ctype.h CXispunct, ispunct_l - test for a punctuation character
 Td p isspace ctype.h isspace, isspace_l - test for a white-space character
 Wp isspace_l ctype.h CXisspace, isspace_l - test for a white-space character
  d isunordered math.h isunordered - test if arguments are unordered
 Td p isupper ctype.h isupper, isupper_l - test for an uppercase letter
 Wp isupper_l ctype.h CXisupper, isupper_l - test for an uppercase letter
 Tp p iswalnum wctype.h iswalnum, iswalnum_l - test for an alphanumeric wide-character code
 Wp iswalnum_l wctype.h CXiswalnum, iswalnum_l - test for an alphanumeric wide-character code
 Tp p iswalpha wctype.h iswalpha, iswalpha_l - test for an alphabetic wide-character code
 Wp iswalpha_l wctype.h CXiswalpha, iswalpha_l - test for an alphabetic wide-character code
 Tp p iswblank wctype.h iswblank, iswblank_l - test for a blank wide-character code
 Wp iswblank_l wctype.h CXiswblank, iswblank_l - test for a blank wide-character code
 Tp p iswcntrl wctype.h iswcntrl, iswcntrl_l - test for a control wide-character code
 Wp iswcntrl_l wctype.h CXiswcntrl, iswcntrl_l - test for a control wide-character code
 Tp p iswctype wctype.h iswctype, iswctype_l - test character for a specified class
 Wp iswctype_l wctype.h CXiswctype, iswctype_l - test character for a specified class
 Td d d p d d d p iswdigit wctype.h iswdigit, iswdigit_l - test for a decimal digit wide-character code
 Wp iswdigit_l wctype.h CXiswdigit, iswdigit_l - test for a decimal digit wide-character code
 Tp p iswgraph wctype.h iswgraph, iswgraph_l - test for a visible wide-character code
 Wp iswgraph_l wctype.h CXiswgraph, iswgraph_l - test for a visible wide-character code
 Tp p iswlower wctype.h iswlower, iswlower_l - test for a lowercase letter wide-character code
 Wp iswlower_l wctype.h CXiswlower, iswlower_l - test for a lowercase letter wide-character code
 Tp p iswprint wctype.h iswprint, iswprint_l - test for a printable wide-character code
 Wp iswprint_l wctype.h CXiswprint, iswprint_l - test for a printable wide-character code
 Tp p iswpunct wctype.h iswpunct, iswpunct_l - test for a punctuation wide-character code
 Wp iswpunct_l wctype.h CXiswpunct, iswpunct_l - test for a punctuation wide-character code
 Tp p iswspace wctype.h iswspace, iswspace_l - test for a white-space wide-character code
 Wp iswspace_l wctype.h CXiswspace, iswspace_l - test for a white-space wide-character code
 Tp p iswupper wctype.h iswupper, iswupper_l - test for an uppercase letter wide-character code
 Wp iswupper_l wctype.h CXiswupper, iswupper_l - test for an uppercase letter wide-character code
 Tp p iswxdigit wctype.h iswxdigit, iswxdigit_l - test for a hexadecimal digit wide-character code
 Wp iswxdigit_l wctype.h CXiswxdigit, iswxdigit_l - test for a hexadecimal digit wide-character code
 Tp isxdigit ctype.h isxdigit, isxdigit_l - test for a hexadecimal digit
 Wp isxdigit_l ctype.h CXisxdigit, isxdigit_l - test for a hexadecimal digit
 Tp j0 math.h XSIj0, j1, jn - Bessel functions of the first kind
 Tp j1 math.h XSIj0, j1, jn - Bessel functions of the first kind
 Tp jn math.h XSIj0, j1, jn - Bessel functions of the first kind
 Tp jrand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp kill signal.h CXkill - send a signal to a process or a group of processes
 Tp killpg signal.h XSIkillpg - send a signal to a process group
 Tp l64a stdlib.h XSIa64l, l64a - convert between a 32-bit integer and a radix-64 ASCII string
 Tp labs stdlib.h labs, llabs - return a long integer absolute value
 Tp lchown unistd.h lchown - change the owner and group of a symbolic link
 Tp lcong48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp d d ldexp math.h ldexp, ldexpf, ldexpl - load exponent of a floating-point number
 Tp ldexpf math.h ldexp, ldexpf, ldexpl - load exponent of a floating-point number
 Tp ldexpl math.h ldexp, ldexpf, ldexpl - load exponent of a floating-point number
 Tp ldiv stdlib.h ldiv, lldiv - compute quotient and remainder of a long division
 Tp lfind search.h XSIlsearch, lfind - linear search and update
 Tp d d lgamma math.h lgamma, lgammaf, lgammal, signgam - log gamma function
 Tp lgammaf math.h lgamma, lgammaf, lgammal, signgam - log gamma function
 Tp lgammal math.h lgamma, lgammaf, lgammal, signgam - log gamma function
 Tp link unistd.h link, linkat - link one file to another file relative to two directory file descriptors
 Tp linkat unistd.h link, linkat - link one file to another file relative to two directory file descriptors
 Tp lio_listio aio.h lio_listio - list directed I/O
 Tp listen sys/socket.h listen - listen for socket connections and limit the queue of incoming connections
 Tp llabs stdlib.h labs, llabs - return a long integer absolute value
 Tp lldiv stdlib.h ldiv, lldiv - compute quotient and remainder of a long division
 Tp d d llrint math.h llrint, llrintf, llrintl - round to the nearest integer value using current rounding direction
 Tp llrintf math.h llrint, llrintf, llrintl - round to the nearest integer value using current rounding direction
 Tp llrintl math.h llrint, llrintf, llrintl - round to the nearest integer value using current rounding direction
 Tp d d llround math.h llround, llroundf, llroundl - round to nearest integer value
 Tp llroundf math.h llround, llroundf, llroundl - round to nearest integer value
 Tp llroundl math.h llround, llroundf, llroundl - round to nearest integer value
 Tp localeconv locale.h localeconv - return locale-specific information
 Tp localtime time.h localtime, localtime_r - convert a time value to a broken-down local time
 Wp localtime_r time.h CXlocaltime, localtime_r - convert a time value to a broken-down local time
 Tp p lockf unistd.h XSIlockf - record locking on files
 Tp d d log math.h log, logf, logl - natural logarithm function
 Tp d d log10 math.h log10, log10f, log10l - base 10 logarithm function
 Tp log10f math.h log10, log10f, log10l - base 10 logarithm function
 Tp log10l math.h log10, log10f, log10l - base 10 logarithm function
 Tp d d log1p math.h log1p, log1pf, log1pl - compute a natural logarithm
 Tp log1pf math.h log1p, log1pf, log1pl - compute a natural logarithm
 Tp log1pl math.h log1p, log1pf, log1pl - compute a natural logarithm
 Tp d d log2 math.h log2, log2f, log2l - compute base 2 logarithm functions
 Tp log2f math.h log2, log2f, log2l - compute base 2 logarithm functions
 Tp log2l math.h log2, log2f, log2l - compute base 2 logarithm functions
 Tp d d logb math.h logb, logbf, logbl - radix-independent exponent
 Tp logbf math.h logb, logbf, logbl - radix-independent exponent
 Tp logbl math.h logb, logbf, logbl - radix-independent exponent
 Tp logf math.h log, logf, logl - natural logarithm function
 Tp logl math.h log, logf, logl - natural logarithm function
 Tp longjmp setjmp.h longjmp - non-local goto
 Tp lrand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp d d lrint math.h lrint, lrintf, lrintl - round to nearest integer value using current rounding direction
 Tp lrintf math.h lrint, lrintf, lrintl - round to nearest integer value using current rounding direction
 Tp lrintl math.h lrint, lrintf, lrintl - round to nearest integer value using current rounding direction
 Tp d d lround math.h lround, lroundf, lroundl - round to nearest integer value
 Tp lroundf math.h lround, lroundf, lroundl - round to nearest integer value
 Tp lroundl math.h lround, lroundf, lroundl - round to nearest integer value
 Tp lsearch search.h XSIlsearch, lfind - linear search and update
 Wp lseek unistd.h lseek - move the read/write file offset
 Tp lstat sys/stat.h fstatat, lstat, stat - get file status
 TWp p malloc stdlib.h malloc - a memory allocator
 Tp mblen stdlib.h mblen - get number of bytes in a character
 Tp mbrlen wchar.h mbrlen - get number of bytes in a character (restartable)
 Tp mbrtowc wchar.h mbrtowc - convert a character to a wide-character code (restartable)
 Tp mbsinit wchar.h mbsinit - determine conversion object status
 Tp mbsnrtowcs wchar.h CXmbsnrtowcs, mbsrtowcs - convert a character string to a wide-character string (restartable)
 Tp mbsrtowcs wchar.h mbsnrtowcs, mbsrtowcs - convert a character string to a wide-character string (restartable)
 Tp mbstowcs stdlib.h mbstowcs - convert a character string to a wide-character string
 Tp mbtowc stdlib.h mbtowc - convert a character to a wide-character code
 Tp memccpy string.h XSImemccpy - copy bytes in memory
 Tp memchr string.h memchr - find byte in memory
 Tp p memcmp string.h memcmp - compare bytes in memory
 Tp p memcpy string.h memcpy - copy bytes in memory
 Tp memmove string.h memmove - copy bytes in memory with overlapping areas
 Tp p memset string.h memset - set bytes in memory
 Tp mkdir sys/stat.h mkdir, mkdirat - make a directory relative to directory file descriptor
 Tp mkdirat sys/stat.h mkdir, mkdirat - make a directory relative to directory file descriptor
 Tp mkdtemp stdlib.h CXmkdtemp, mkstemp - create a unique directory or file
 Tp mkfifo sys/stat.h mkfifo, mkfifoat - make a FIFO special file relative to directory file descriptor
 Tp mkfifoat sys/stat.h mkfifo, mkfifoat - make a FIFO special file relative to directory file descriptor
 Tp mknod sys/stat.h XSImknod, mknodat - make directory, special file, or regular file
 Tp mknodat sys/stat.h XSImknod, mknodat - make directory, special file, or regular file
 Tp mkstemp stdlib.h CXmkdtemp, mkstemp - create a unique directory or file
 Tp mktime time.h mktime - convert broken-down time into time since the Epoch
 Tp mlock sys/mman.h MLRmlock, munlock - lock or unlock a range of process address space (REALTIME)
 Tp mlockall sys/mman.h MLmlockall, munlockall - lock/unlock the address space of a process (REALTIME)
 Wp mmap sys/mman.h mmap - map pages of memory
 Tp modf math.h modf, modff, modfl - decompose a floating-point number
 Tp modff math.h modf, modff, modfl - decompose a floating-point number
 Tp modfl math.h modf, modff, modfl - decompose a floating-point number
 Wp mprotect sys/mman.h mprotect - set protection of memory mapping
 Tp mq_close mqueue.h MSGmq_close - close a message queue (REALTIME)
 Tp mq_getattr mqueue.h MSGmq_getattr - get message queue attributes (REALTIME)
 Tp mq_notify mqueue.h MSGmq_notify - notify process that a message is available (REALTIME)
 Tp mq_open mqueue.h MSGmq_open - open a message queue (REALTIME)
 Tp mq_receive mqueue.h MSGmq_receive, mq_timedreceive - receive a message from a message queue (REALTIME)
 Tp mq_send mqueue.h MSGmq_send, mq_timedsend - send a message to a message queue (REALTIME)
 Tp mq_setattr mqueue.h MSGmq_setattr - set message queue attributes (REALTIME)
 Tp mq_timedreceive mqueue.h time.h MSGmq_receive, mq_timedreceive - receive a message from a message queue (REALTIME)
 Tp mq_timedsend mqueue.h time.h MSGmq_send, mq_timedsend - send a message to a message queue (REALTIME)
 Tp mq_unlink mqueue.h MSGmq_unlink - remove a message queue (REALTIME)
 Tp mrand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp msgctl sys/msg.h XSImsgctl - XSI message control operations
 Tp msgget sys/msg.h XSImsgget - get the XSI message queue identifier
 Tp msgrcv sys/msg.h XSImsgrcv - XSI message receive operation
 Tp msgsnd sys/msg.h XSImsgsnd - XSI message send operation
 Tp msync sys/mman.h XSImsync - synchronize memory with physical storage
 Tp munlock sys/mman.h MLRmlock, munlock - lock or unlock a range of process address space (REALTIME)
 Tp munlockall sys/mman.h MLmlockall, munlockall - lock/unlock the address space of a process (REALTIME)
 Wp munmap sys/mman.h munmap - unmap pages of memory
 Tp nan math.h nan, nanf, nanl - return quiet NaN
 Tp nanf math.h nan, nanf, nanl - return quiet NaN
 Tp nanl math.h nan, nanf, nanl - return quiet NaN
 Tp nanosleep time.h CXnanosleep - high resolution sleep
 Tp d d nearbyint math.h nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
 Tp nearbyintf math.h nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
 Tp nearbyintl math.h nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
 Wp newlocale locale.h CXnewlocale - create or modify a locale object
 Tp d d nextafter math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp nextafterf math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp nextafterl math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp d d nexttoward math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp nexttowardf math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp nexttowardl math.h nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl - next representable floating-point number
 Tp nftw ftw.h XSInftw - walk a file tree
 Tp nice unistd.h XSInice - change the nice value of a process
 Wp nl_langinfo langinfo.h nl_langinfo, nl_langinfo_l - language information
 Wp nl_langinfo_l langinfo.h nl_langinfo, nl_langinfo_l - language information
 Tp nrand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp p ntohl arpa/inet.h htonl, htons, ntohl, ntohs - convert values between host and network byte order
 Tp p ntohs arpa/inet.h htonl, htons, ntohl, ntohs - convert values between host and network byte order
 Tp open sys/stat.h fcntl.h OHopen, openat - open file relative to directory file descriptor
 Tp open_memstream stdio.h CXopen_memstream, open_wmemstream - open a dynamic memory buffer stream
 Tp open_wmemstream wchar.h CXopen_memstream, open_wmemstream - open a dynamic memory buffer stream
 Tp openat sys/stat.h fcntl.h OHopen, openat - open file relative to directory file descriptor
 Tp opendir dirent.h fdopendir, opendir - open directory associated with file descriptor
 Tp openlog syslog.h XSIcloselog, openlog, setlogmask, syslog - control system log
 Cx x optarg unistd.h getopt, optarg, opterr, optind, optopt - command option parsing
 Dx x opterr unistd.h getopt, optarg, opterr, optind, optopt - command option parsing
 Dx x optind unistd.h getopt, optarg, opterr, optind, optopt - command option parsing
 Cx x optopt unistd.h getopt, optarg, opterr, optind, optopt - command option parsing
 Tp pathconf unistd.h fpathconf, pathconf - get configurable pathname variables
 Tp pause unistd.h pause - suspend the thread until a signal is received
 Tp pclose stdio.h CXpclose - close a pipe stream to or from a process
 Tp perror stdio.h perror - write error messages to standard error
 Tp pipe unistd.h pipe - create an interprocess channel
 Tp poll poll.h poll - input/output multiplexing
 Tp popen stdio.h CXpopen - initiate pipe streams to or from a process
 Tp posix_fadvise fcntl.h ADVposix_fadvise - file advisory information (ADVANCED REALTIME)
 Tp posix_fallocate fcntl.h ADVposix_fallocate - file space control (ADVANCED REALTIME)
 Tp posix_madvise sys/mman.h ADVposix_madvise - memory advisory information and alignment control (ADVANCED REALTIME)
missing  posix_mem_offset sys/mman.h TYMposix_mem_offset - find offset and length of a mapped typed memory block (ADVANCED REALTIME)
 Tp posix_memalign stdlib.h ADVposix_memalign - aligned memory allocation (ADVANCED REALTIME)
 Tp posix_openpt stdlib.h fcntl.h XSIposix_openpt - open a pseudo-terminal device
 Tp posix_spawn spawn.h SPNposix_spawn, posix_spawnp - spawn a process (ADVANCED REALTIME)
 Tp posix_spawn_file_actions_addclose spawn.h SPNposix_spawn_file_actions_addclose, posix_spawn_file_actions_addopen - add close or open action to spawn file actions object (ADVANCED REALTIME)
 Tp posix_spawn_file_actions_adddup2 spawn.h SPNposix_spawn_file_actions_adddup2 - add dup2 action to spawn file actions object (ADVANCED REALTIME)
 Tp posix_spawn_file_actions_addopen spawn.h SPNposix_spawn_file_actions_addclose, posix_spawn_file_actions_addopen - add close or open action to spawn file actions object (ADVANCED REALTIME)
 Tp posix_spawn_file_actions_destroy spawn.h SPNposix_spawn_file_actions_destroy, posix_spawn_file_actions_init - destroy and initialize spawn file actions object (ADVANCED REALTIME)
 Tp posix_spawn_file_actions_init spawn.h SPNposix_spawn_file_actions_destroy, posix_spawn_file_actions_init - destroy and initialize spawn file actions object (ADVANCED REALTIME)
 Tp posix_spawnattr_destroy spawn.h SPNposix_spawnattr_destroy, posix_spawnattr_init - destroy and initialize spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getflags spawn.h SPNposix_spawnattr_getflags, posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getpgroup spawn.h SPNposix_spawnattr_getpgroup, posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getschedparam spawn.h sched.h SPN PSposix_spawnattr_getschedparam, posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getschedpolicy spawn.h sched.h SPN PSposix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getsigdefault signal.h spawn.h SPNposix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_getsigmask signal.h spawn.h SPNposix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_init spawn.h SPNposix_spawnattr_destroy, posix_spawnattr_init - destroy and initialize spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setflags spawn.h SPNposix_spawnattr_getflags, posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setpgroup spawn.h SPNposix_spawnattr_getpgroup, posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setschedparam spawn.h sched.h SPN PSposix_spawnattr_getschedparam, posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setschedpolicy spawn.h sched.h SPN PSposix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setsigdefault signal.h spawn.h SPNposix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnattr_setsigmask signal.h spawn.h SPNposix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)
 Tp posix_spawnp spawn.h SPNposix_spawn, posix_spawnp - spawn a process (ADVANCED REALTIME)
missing  posix_typed_mem_get_info sys/mman.h TYMposix_typed_mem_get_info - query typed memory information (ADVANCED REALTIME)
missing  posix_typed_mem_open sys/mman.h TYMposix_typed_mem_open - open a typed memory object (ADVANCED REALTIME)
 Tp d d pow math.h pow, powf, powl - power function
 Tp powf math.h pow, powf, powl - power function
 Tp powl math.h pow, powf, powl - power function
 Tp pread unistd.h pread, read - read from a file
 Tp printf stdio.h dprintf, fprintf, printf, snprintf, sprintf - print formatted output
 Tp pselect sys/select.h pselect, select - synchronous I/O multiplexing
 Tp psiginfo signal.h CXpsiginfo, psignal - print signal information to standard error
 Tp psignal signal.h CXpsiginfo, psignal - print signal information to standard error
 Tp pthread_atfork pthread.h pthread_atfork - register fork handlers
 Tp pthread_attr_destroy pthread.h pthread_attr_destroy, pthread_attr_init - destroy and initialize the thread attributes object
 Tp pthread_attr_getdetachstate pthread.h pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set the detachstate attribute
 Tp pthread_attr_getguardsize pthread.h pthread_attr_getguardsize, pthread_attr_setguardsize - get and set the thread guardsize attribute
 Tp pthread_attr_getinheritsched pthread.h TPSpthread_attr_getinheritsched, pthread_attr_setinheritsched - get and set the inheritsched attribute (REALTIME THREADS)
 Tp pthread_attr_getschedparam pthread.h pthread_attr_getschedparam, pthread_attr_setschedparam - get and set the schedparam attribute
 Tp pthread_attr_getschedpolicy pthread.h TPSpthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get and set the schedpolicy attribute (REALTIME THREADS)
 Tp pthread_attr_getscope pthread.h TPSpthread_attr_getscope, pthread_attr_setscope - get and set the contentionscope attribute (REALTIME THREADS)
 Tp pthread_attr_getstack pthread.h TSA TSSpthread_attr_getstack, pthread_attr_setstack - get and set stack attributes
 Tp pthread_attr_getstacksize pthread.h TSSpthread_attr_getstacksize, pthread_attr_setstacksize - get and set the stacksize attribute
 Tp pthread_attr_init pthread.h pthread_attr_destroy, pthread_attr_init - destroy and initialize the thread attributes object
 Tp pthread_attr_setdetachstate pthread.h pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set the detachstate attribute
 Tp pthread_attr_setguardsize pthread.h pthread_attr_getguardsize, pthread_attr_setguardsize - get and set the thread guardsize attribute
 Tp pthread_attr_setinheritsched pthread.h TPSpthread_attr_getinheritsched, pthread_attr_setinheritsched - get and set the inheritsched attribute (REALTIME THREADS)
 Tp pthread_attr_setschedparam pthread.h pthread_attr_getschedparam, pthread_attr_setschedparam - get and set the schedparam attribute
 Tp pthread_attr_setschedpolicy pthread.h TPSpthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get and set the schedpolicy attribute (REALTIME THREADS)
 Tp pthread_attr_setscope pthread.h TPSpthread_attr_getscope, pthread_attr_setscope - get and set the contentionscope attribute (REALTIME THREADS)
 Tp pthread_attr_setstack pthread.h TSA TSSpthread_attr_getstack, pthread_attr_setstack - get and set stack attributes
 Tp pthread_attr_setstacksize pthread.h TSSpthread_attr_getstacksize, pthread_attr_setstacksize - get and set the stacksize attribute
 Tp pthread_barrier_destroy pthread.h pthread_barrier_destroy, pthread_barrier_init - destroy and initialize a barrier object
 Tp pthread_barrier_init pthread.h pthread_barrier_destroy, pthread_barrier_init - destroy and initialize a barrier object
 Tp pthread_barrier_wait pthread.h pthread_barrier_wait - synchronize at a barrier
 Tp pthread_barrierattr_destroy pthread.h pthread_barrierattr_destroy, pthread_barrierattr_init - destroy and initialize the barrier attributes object
 Tp pthread_barrierattr_getpshared pthread.h TSHpthread_barrierattr_getpshared, pthread_barrierattr_setpshared - get and set the process-shared attribute of the barrier attributes object
 Tp pthread_barrierattr_init pthread.h pthread_barrierattr_destroy, pthread_barrierattr_init - destroy and initialize the barrier attributes object
 Tp pthread_barrierattr_setpshared pthread.h TSHpthread_barrierattr_getpshared, pthread_barrierattr_setpshared - get and set the process-shared attribute of the barrier attributes object
 Tp pthread_cancel pthread.h pthread_cancel - cancel execution of a thread
  d pthread_cleanup_pop pthread.h pthread_cleanup_pop, pthread_cleanup_push - establish cancellation handlers
  d pthread_cleanup_push pthread.h pthread_cleanup_pop, pthread_cleanup_push - establish cancellation handlers
 Tp pthread_cond_broadcast pthread.h pthread_cond_broadcast, pthread_cond_signal - broadcast or signal a condition
 Tp pthread_cond_destroy pthread.h pthread_cond_destroy, pthread_cond_init - destroy and initialize condition variables
 Tp pthread_cond_init pthread.h pthread_cond_destroy, pthread_cond_init - destroy and initialize condition variables
 Tp pthread_cond_signal pthread.h pthread_cond_broadcast, pthread_cond_signal - broadcast or signal a condition
 Wp pthread_cond_timedwait pthread.h pthread_cond_timedwait, pthread_cond_wait - wait on a condition
 Tp pthread_cond_wait pthread.h pthread_cond_timedwait, pthread_cond_wait - wait on a condition
 Tp pthread_condattr_destroy pthread.h pthread_condattr_destroy, pthread_condattr_init - destroy and initialize the condition variable attributes object
 Tp pthread_condattr_getclock pthread.h pthread_condattr_getclock, pthread_condattr_setclock - get and set the clock selection condition variable attribute
 Tp pthread_condattr_getpshared pthread.h TSHpthread_condattr_getpshared, pthread_condattr_setpshared - get and set the process-shared condition variable attributes
 Tp pthread_condattr_init pthread.h pthread_condattr_destroy, pthread_condattr_init - destroy and initialize the condition variable attributes object
 Tp pthread_condattr_setclock pthread.h pthread_condattr_getclock, pthread_condattr_setclock - get and set the clock selection condition variable attribute
 Tp pthread_condattr_setpshared pthread.h TSHpthread_condattr_getpshared, pthread_condattr_setpshared - get and set the process-shared condition variable attributes
 Wp pthread_create pthread.h pthread_create - thread creation
 Wp pthread_detach pthread.h pthread_detach - detach a thread
 Wd p pthread_equal pthread.h pthread_equal - compare thread IDs
 Wp pthread_exit pthread.h pthread_exit - thread termination
 Tp pthread_getconcurrency pthread.h OB XSIpthread_getconcurrency, pthread_setconcurrency - get and set the level of concurrency
 Tp pthread_getcpuclockid pthread.h time.h TCTpthread_getcpuclockid - access a thread CPU-time clock (ADVANCED REALTIME THREADS)
 Tp pthread_getschedparam pthread.h TPSpthread_getschedparam, pthread_setschedparam - dynamic thread scheduling parameters access (REALTIME THREADS)
 Wp pthread_getspecific pthread.h pthread_getspecific, pthread_setspecific - thread-specific data management
 Wp pthread_join pthread.h pthread_join - wait for thread termination
 Wp pthread_key_create pthread.h pthread_key_create - thread-specific data key creation
 Wp pthread_key_delete pthread.h pthread_key_delete - thread-specific data key deletion
 Tp pthread_kill signal.h CXpthread_kill - send a signal to a thread
 Tp pthread_mutex_consistent pthread.h pthread_mutex_consistent - mark state protected by robust mutex as consistent
 Tp pthread_mutex_destroy pthread.h pthread_mutex_destroy, pthread_mutex_init - destroy and initialize a mutex
 Tp pthread_mutex_getprioceiling pthread.h RPPpthread_mutex_getprioceiling, pthread_mutex_setprioceiling - get and set the priority ceiling of a mutex (REALTIME THREADS)
 Tp pthread_mutex_init pthread.h pthread_mutex_destroy, pthread_mutex_init - destroy and initialize a mutex
 Wp pthread_mutex_lock pthread.h pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock and unlock a mutex
 Tp pthread_mutex_setprioceiling pthread.h RPPpthread_mutex_getprioceiling, pthread_mutex_setprioceiling - get and set the priority ceiling of a mutex (REALTIME THREADS)
 Wp pthread_mutex_timedlock pthread.h time.h pthread_mutex_timedlock - lock a mutex
 Wp pthread_mutex_trylock pthread.h pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock and unlock a mutex
 Wp pthread_mutex_unlock pthread.h pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock - lock and unlock a mutex
 Tp pthread_mutexattr_destroy pthread.h pthread_mutexattr_destroy, pthread_mutexattr_init - destroy and initialize the mutex attributes object
nosym p pthread_mutexattr_getprioceiling pthread.h RPPpthread_mutexattr_getprioceiling, pthread_mutexattr_setprioceiling - get and set the prioceiling attribute of the mutex attributes object (REALTIME THREADS)
 Tp pthread_mutexattr_getprotocol pthread.h MC1pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol - get and set the protocol attribute of the mutex attributes object (REALTIME THREADS)
 Tp pthread_mutexattr_getpshared pthread.h TSHpthread_mutexattr_getpshared, pthread_mutexattr_setpshared - get and set the process-shared attribute
 Tp pthread_mutexattr_getrobust pthread.h pthread_mutexattr_getrobust, pthread_mutexattr_setrobust - get and set the mutex robust attribute
 Tp pthread_mutexattr_gettype pthread.h pthread_mutexattr_gettype, pthread_mutexattr_settype - get and set the mutex type attribute
 Tp pthread_mutexattr_init pthread.h pthread_mutexattr_destroy, pthread_mutexattr_init - destroy and initialize the mutex attributes object
nosym p pthread_mutexattr_setprioceiling pthread.h RPPpthread_mutexattr_getprioceiling, pthread_mutexattr_setprioceiling - get and set the prioceiling attribute of the mutex attributes object (REALTIME THREADS)
 Tp pthread_mutexattr_setprotocol pthread.h MC1pthread_mutexattr_getprotocol, pthread_mutexattr_setprotocol - get and set the protocol attribute of the mutex attributes object (REALTIME THREADS)
 Tp pthread_mutexattr_setpshared pthread.h TSHpthread_mutexattr_getpshared, pthread_mutexattr_setpshared - get and set the process-shared attribute
 Tp pthread_mutexattr_setrobust pthread.h pthread_mutexattr_getrobust, pthread_mutexattr_setrobust - get and set the mutex robust attribute
 Tp pthread_mutexattr_settype pthread.h pthread_mutexattr_gettype, pthread_mutexattr_settype - get and set the mutex type attribute
 Wp pthread_once pthread.h pthread_once - dynamic package initialization
 Tp pthread_rwlock_destroy pthread.h pthread_rwlock_destroy, pthread_rwlock_init - destroy and initialize a read-write lock object
 Tp pthread_rwlock_init pthread.h pthread_rwlock_destroy, pthread_rwlock_init - destroy and initialize a read-write lock object
 Wp pthread_rwlock_rdlock pthread.h pthread_rwlock_rdlock, pthread_rwlock_tryrdlock - lock a read-write lock object for reading
 Wp pthread_rwlock_timedrdlock pthread.h time.h pthread_rwlock_timedrdlock - lock a read-write lock for reading
 Wp pthread_rwlock_timedwrlock pthread.h time.h pthread_rwlock_timedwrlock - lock a read-write lock for writing
 Wp pthread_rwlock_tryrdlock pthread.h pthread_rwlock_rdlock, pthread_rwlock_tryrdlock - lock a read-write lock object for reading
 Wp pthread_rwlock_trywrlock pthread.h pthread_rwlock_trywrlock, pthread_rwlock_wrlock - lock a read-write lock object for writing
 Wp pthread_rwlock_unlock pthread.h pthread_rwlock_unlock - unlock a read-write lock object
 Wp pthread_rwlock_wrlock pthread.h pthread_rwlock_trywrlock, pthread_rwlock_wrlock - lock a read-write lock object for writing
 Tp pthread_rwlockattr_destroy pthread.h pthread_rwlockattr_destroy, pthread_rwlockattr_init - destroy and initialize the read-write lock attributes object
 Tp pthread_rwlockattr_getpshared pthread.h TSHpthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared - get and set the process-shared attribute of the read-write lock attributes object
 Tp pthread_rwlockattr_init pthread.h pthread_rwlockattr_destroy, pthread_rwlockattr_init - destroy and initialize the read-write lock attributes object
 Tp pthread_rwlockattr_setpshared pthread.h TSHpthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared - get and set the process-shared attribute of the read-write lock attributes object
 Wp pthread_self pthread.h pthread_self - get the calling thread ID
 Wp pthread_setcancelstate pthread.h pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel - set cancelability state
 Tp pthread_setcanceltype pthread.h pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel - set cancelability state
 Tp pthread_setconcurrency pthread.h OB XSIpthread_getconcurrency, pthread_setconcurrency - get and set the level of concurrency
 Tp pthread_setschedparam pthread.h TPSpthread_getschedparam, pthread_setschedparam - dynamic thread scheduling parameters access (REALTIME THREADS)
 Tp pthread_setschedprio pthread.h TPSpthread_setschedprio - dynamic thread scheduling parameters access (REALTIME THREADS)
 Tp pthread_setspecific pthread.h pthread_getspecific, pthread_setspecific - thread-specific data management
 Tp pthread_sigmask signal.h CXpthread_sigmask, sigprocmask - examine and change blocked signals
 Tp pthread_spin_destroy pthread.h pthread_spin_destroy, pthread_spin_init - destroy or initialize a spin lock object
 Tp pthread_spin_init pthread.h pthread_spin_destroy, pthread_spin_init - destroy or initialize a spin lock object
 Tp pthread_spin_lock pthread.h pthread_spin_lock, pthread_spin_trylock - lock a spin lock object
 Tp pthread_spin_trylock pthread.h pthread_spin_lock, pthread_spin_trylock - lock a spin lock object
 Tp pthread_spin_unlock pthread.h pthread_spin_unlock - unlock a spin lock object
 Wp pthread_testcancel pthread.h pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel - set cancelability state
 Tp ptsname stdlib.h XSIptsname - get name of the slave pseudo-terminal device
 Tp putc stdio.h putc - put a byte on a stream
 Tp putc_unlocked stdio.h CXgetc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
 Tp putchar stdio.h putchar - put a byte on a stdout stream
 Tp putchar_unlocked stdio.h CXgetc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked - stdio with explicit client locking
 Tp putenv stdlib.h XSIputenv - change or add a value to an environment
 Tp puts stdio.h puts - put a string on standard output
 Tp pututxline utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Tp putwc stdio.h wchar.h putwc - put a wide character on a stream
 Tp putwchar wchar.h putwchar - put a wide character on a stdout stream
 Tp pwrite unistd.h pwrite, write - write on a file
 Tp qsort stdlib.h qsort - sort a table of data
 Tp raise signal.h raise - send a signal to the executing process
 Tp rand stdlib.h rand, rand_r, srand - pseudo-random number generator
 Tp rand_r stdlib.h OB CXrand, rand_r, srand - pseudo-random number generator
 Tp random stdlib.h XSIinitstate, random, setstate, srandom - pseudo-random number functions
 Tp read unistd.h pread, read - read from a file
 Tp readdir dirent.h readdir, readdir_r - read a directory
 Tp readdir_r dirent.h readdir, readdir_r - read a directory
 Tp readlink unistd.h readlink, readlinkat - read the contents of a symbolic link relative to a directory file descriptor
 Tp readlinkat unistd.h readlink, readlinkat - read the contents of a symbolic link relative to a directory file descriptor
 Tp readv sys/uio.h XSIreadv - read a vector
 Tp p realloc stdlib.h realloc - memory reallocator
 Tp realpath stdlib.h XSIrealpath - resolve a pathname
 Tp recv sys/socket.h recv - receive a message from a connected socket
 Tp recvfrom sys/socket.h recvfrom - receive a message from a socket
 Tp recvmsg sys/socket.h recvmsg - receive a message from a socket
 Tp regcomp regex.h regcomp, regerror, regexec, regfree - regular expression matching
 Tp regerror regex.h regcomp, regerror, regexec, regfree - regular expression matching
 Tp regexec regex.h regcomp, regerror, regexec, regfree - regular expression matching
 Tp regfree regex.h regcomp, regerror, regexec, regfree - regular expression matching
 Tp d d remainder math.h remainder, remainderf, remainderl - remainder function
 Tp remainderf math.h remainder, remainderf, remainderl - remainder function
 Tp remainderl math.h remainder, remainderf, remainderl - remainder function
 Tp remove stdio.h remove - remove a file
 Tp remque search.h XSIinsque, remque - insert or remove an element in a queue
 Tp d d remquo math.h remquo, remquof, remquol - remainder functions
 Tp remquof math.h remquo, remquof, remquol - remainder functions
 Tp remquol math.h remquo, remquof, remquol - remainder functions
 Tp rename stdio.h CXrename, renameat - rename file relative to directory file descriptor
 Tp renameat stdio.h CXrename, renameat - rename file relative to directory file descriptor
 Tp rewind stdio.h rewind - reset the file position indicator in a stream
 Tp rewinddir dirent.h rewinddir - reset the position of a directory stream to the beginning of a directory
 Tp d d rint math.h rint, rintf, rintl - round-to-nearest integral value
 Tp rintf math.h rint, rintf, rintl - round-to-nearest integral value
 Tp rintl math.h rint, rintf, rintl - round-to-nearest integral value
 Tp rmdir unistd.h rmdir - remove a directory
 Tp d d round math.h round, roundf, roundl - round to the nearest integer value in a floating-point format
 Tp roundf math.h round, roundf, roundl - round to the nearest integer value in a floating-point format
 Tp roundl math.h round, roundf, roundl - round to the nearest integer value in a floating-point format
 Tp d d scalbln math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp scalblnf math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp scalblnl math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp d d scalbn math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp scalbnf math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp scalbnl math.h scalbln, scalblnf, scalblnl, scalbn, scalbnf, scalbnl - compute exponent using FLT_RADIX
 Tp scandir dirent.h alphasort, scandir - scan a directory
 Tp scanf stdio.h fscanf, scanf, sscanf - convert formatted input
 Tp sched_get_priority_max sched.h PSsched_get_priority_max, sched_get_priority_min - get priority limits (REALTIME)
 Tp sched_get_priority_min sched.h PSsched_get_priority_max, sched_get_priority_min - get priority limits (REALTIME)
 Tp sched_getparam sched.h PSsched_getparam - get scheduling parameters (REALTIME)
 Tp sched_getscheduler sched.h PSsched_getscheduler - get scheduling policy (REALTIME)
 Tp sched_rr_get_interval sched.h PSsched_rr_get_interval - get execution time limits (REALTIME)
 Tp sched_setparam sched.h PSsched_setparam - set scheduling parameters (REALTIME)
 Tp sched_setscheduler sched.h PSsched_setscheduler - set scheduling policy and parameters (REALTIME)
 Tp sched_yield sched.h sched_yield - yield the processor
 Tp seed48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp seekdir dirent.h XSIseekdir - set the position of a directory stream
 Tp select sys/select.h pselect, select - synchronous I/O multiplexing
 Tp sem_close semaphore.h sem_close - close a named semaphore
 Tp sem_destroy semaphore.h sem_destroy - destroy an unnamed semaphore
 Tp sem_getvalue semaphore.h sem_getvalue - get the value of a semaphore
 Tp sem_init semaphore.h sem_init - initialize an unnamed semaphore
 Tp sem_open semaphore.h sem_open - initialize and open a named semaphore
 Tp sem_post semaphore.h sem_post - unlock a semaphore
 Tp sem_timedwait semaphore.h time.h sem_timedwait - lock a semaphore
 Tp sem_trywait semaphore.h sem_trywait, sem_wait - lock a semaphore
 Tp sem_unlink semaphore.h sem_unlink - remove a named semaphore
 Tp sem_wait semaphore.h sem_trywait, sem_wait - lock a semaphore
 Tp semctl sys/sem.h XSIsemctl - XSI semaphore control operations
 Tp semget sys/sem.h XSIsemget - get set of XSI semaphores
 Tp semop sys/sem.h XSIsemop - XSI semaphore operations
 Tp send sys/socket.h send - send a message on a socket
 Tp sendmsg sys/socket.h sendmsg - send a message on a socket using a message structure
 Tp sendto sys/socket.h sendto - send a message on a socket
 Tp setbuf stdio.h setbuf - assign buffering to a stream
 Tp setegid unistd.h setegid - set the effective group ID
 Tp setenv stdlib.h CXsetenv - add or change environment variable
 Tp seteuid unistd.h seteuid - set effective user ID
 Tp setgid unistd.h setgid - set-group-ID
 Tp setgrent grp.h XSIendgrent, getgrent, setgrent - group database entry functions
 Tp sethostent netdb.h endhostent, gethostent, sethostent - network host database functions
 Tp setitimer sys/time.h OB XSIgetitimer, setitimer - get and set value of interval timer
 Td p setjmp setjmp.h setjmp - set jump point for a non-local goto
 Tp setkey stdlib.h XSIsetkey - set encoding key (CRYPT)
 Tp setlocale locale.h setlocale - set program locale
 Tp setlogmask syslog.h XSIcloselog, openlog, setlogmask, syslog - control system log
 Wp setnetent netdb.h endnetent, getnetbyaddr, getnetbyname, getnetent, setnetent - network database functions
 Tp setpgid unistd.h setpgid - set process group ID for job control
 Tp setpgrp unistd.h OB XSIsetpgrp - set the process group ID
 Tp setpriority sys/resource.h XSIgetpriority, setpriority - get and set the nice value
 Tp setprotoent netdb.h endprotoent, getprotobyname, getprotobynumber, getprotoent, setprotoent - network protocol database functions
 Tp setpwent pwd.h XSIendpwent, getpwent, setpwent - user database functions
 Tp setregid unistd.h XSIsetregid - set real and effective group IDs
 Tp setreuid unistd.h XSIsetreuid - set real and effective user IDs
 Tp setrlimit sys/resource.h XSIgetrlimit, setrlimit - control maximum resource consumption
 Tp setservent netdb.h endservent, getservbyname, getservbyport, getservent, setservent - network services database functions
 Tp setsid unistd.h setsid - create session and set process group ID
 Tp setsockopt sys/socket.h setsockopt - set the socket options
 Tp setstate stdlib.h XSIinitstate, random, setstate, srandom - pseudo-random number functions
 Tp setuid unistd.h setuid - set user ID
 Tp setutxent utmpx.h XSIendutxent, getutxent, getutxid, getutxline, pututxline, setutxent - user accounting database functions
 Tp setvbuf stdio.h setvbuf - assign buffering to a stream
 Tp shm_open sys/mman.h SHMshm_open - open a shared memory object (REALTIME)
 Tp shm_unlink sys/mman.h SHMshm_unlink - remove a shared memory object (REALTIME)
 Tp shmat sys/shm.h XSIshmat - XSI shared memory attach operation
 Tp shmctl sys/shm.h XSIshmctl - XSI shared memory control operations
 Tp shmdt sys/shm.h XSIshmdt - XSI shared memory detach operation
 Tp shmget sys/shm.h XSIshmget - get an XSI shared memory segment
 Tp shutdown sys/socket.h shutdown - shut down socket send and receive operations
 Wp sigaction signal.h CXsigaction - examine and change a signal action
 Tp sigaddset signal.h CXsigaddset - add a signal to a signal set
 Tp sigaltstack signal.h XSIsigaltstack - set and get signal alternate stack context
 Tp sigdelset signal.h CXsigdelset - delete a signal from a signal set
 Tp sigemptyset signal.h CXsigemptyset - initialize and empty a signal set
 Tp sigfillset signal.h CXsigfillset - initialize and fill a signal set
 Tp sighold signal.h OB XSIsighold, sigignore, sigpause, sigrelse, sigset - signal management
 Tp sigignore signal.h OB XSIsighold, sigignore, sigpause, sigrelse, sigset - signal management
 Tp siginterrupt signal.h OB XSIsiginterrupt - allow signals to interrupt functions
 Tp sigismember signal.h CXsigismember - test for a signal in a signal set
 Tp siglongjmp setjmp.h CXsiglongjmp - non-local goto with signal handling
 Tp signal signal.h signal - signal management
  d signbit math.h signbit - test sign
 Vx signgam math.h XSIlgamma, lgammaf, lgammal, signgam - log gamma function
 Tp sigpause signal.h OB XSIsighold, sigignore, sigpause, sigrelse, sigset - signal management
 Tp sigpending signal.h CXsigpending - examine pending signals
 Tp sigprocmask signal.h CXpthread_sigmask, sigprocmask - examine and change blocked signals
 Tp sigqueue signal.h CXsigqueue - queue a signal to a process
 Tp sigrelse signal.h OB XSIsighold, sigignore, sigpause, sigrelse, sigset - signal management
 Tp sigset signal.h OB XSIsighold, sigignore, sigpause, sigrelse, sigset - signal management
 Tp sigsetjmp setjmp.h CXsigsetjmp - set jump point for a non-local goto
 Tp sigsuspend signal.h CXsigsuspend - wait for a signal
 Tp sigtimedwait signal.h CXsigtimedwait, sigwaitinfo - wait for queued signals
 Tp sigwait signal.h CXsigwait - wait for queued signals
 Tp sigwaitinfo signal.h CXsigtimedwait, sigwaitinfo - wait for queued signals
 Tp d d sin math.h sin, sinf, sinl - sine function
 Tp sinf math.h sin, sinf, sinl - sine function
 Tp d d sinh math.h sinh, sinhf, sinhl - hyperbolic sine functions
 Tp sinhf math.h sinh, sinhf, sinhl - hyperbolic sine functions
 Tp sinhl math.h sinh, sinhf, sinhl - hyperbolic sine functions
 Tp sinl math.h sin, sinf, sinl - sine function
 Tp sleep unistd.h sleep - suspend execution for an interval of time
 Tp snprintf stdio.h dprintf, fprintf, printf, snprintf, sprintf - print formatted output
 Tp sockatmark sys/socket.h sockatmark - determine whether a socket is at the out-of-band mark
 Tp socket sys/socket.h socket - create an endpoint for communication
 Tp socketpair sys/socket.h socketpair - create a pair of connected sockets
 Tp sprintf stdio.h dprintf, fprintf, printf, snprintf, sprintf - print formatted output
 Tp d d sqrt math.h sqrt, sqrtf, sqrtl - square root function
 Tp sqrtf math.h sqrt, sqrtf, sqrtl - square root function
 Tp sqrtl math.h sqrt, sqrtf, sqrtl - square root function
 Tp srand stdlib.h rand, rand_r, srand - pseudo-random number generator
 Tp srand48 stdlib.h XSIdrand48, erand48, jrand48, lcong48, lrand48, mrand48, nrand48, seed48, srand48 - generate uniformly distributed pseudo-random numbers
 Tp srandom stdlib.h XSIinitstate, random, setstate, srandom - pseudo-random number functions
 Tp sscanf stdio.h fscanf, scanf, sscanf - convert formatted input
 Tp stat sys/stat.h fstatat, lstat, stat - get file status
 Tp statvfs sys/statvfs.h fstatvfs, statvfs - get file system information
 Dd x stderr stdio.h stderr, stdin, stdout - standard I/O streams
 Dd x stdin stdio.h stderr, stdin, stdout - standard I/O streams
 Dd x stdout stdio.h stderr, stdin, stdout - standard I/O streams
 Wp stpcpy string.h CXstpcpy, strcpy - copy a string and return a pointer to the end of the result
 Wp stpncpy string.h CXstpncpy, strncpy - copy fixed length string, returning a pointer to the array end
 Tp strcasecmp strings.h strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l - case-insensitive string comparisons
 Wp strcasecmp_l strings.h strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l - case-insensitive string comparisons
 Tp strcat string.h strcat - concatenate two strings
 Tp strchr string.h strchr - string scanning operation
 Tp strcmp string.h strcmp - compare two strings
 Tp strcoll string.h strcoll, strcoll_l - string comparison using collating information
 Wp strcoll_l string.h CXstrcoll, strcoll_l - string comparison using collating information
 Tp strcpy string.h stpcpy, strcpy - copy a string and return a pointer to the end of the result
 Tp strcspn string.h strcspn - get the length of a complementary substring
 Tp strdup string.h CXstrdup, strndup - duplicate a specific number of bytes from a string
 Tp strerror string.h strerror, strerror_l, strerror_r - get error message string
 Wp strerror_l string.h CXstrerror, strerror_l, strerror_r - get error message string
 Tp strerror_r string.h CXstrerror, strerror_l, strerror_r - get error message string
 Tp strfmon monetary.h strfmon, strfmon_l - convert monetary value to a string
 Tp strfmon_l monetary.h strfmon, strfmon_l - convert monetary value to a string
 Tp strftime time.h strftime, strftime_l - convert date and time to a string
 Wp strftime_l time.h CXstrftime, strftime_l - convert date and time to a string
 Tp p strlen string.h strlen, strnlen - get length of fixed size string
 Tp strncasecmp strings.h strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l - case-insensitive string comparisons
 Wp strncasecmp_l strings.h strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l - case-insensitive string comparisons
 Tp strncat string.h strncat - concatenate a string with part of another
 Tp strncmp string.h strncmp - compare part of two strings
 Tp strncpy string.h stpncpy, strncpy - copy fixed length string, returning a pointer to the array end
 Tp strndup string.h CXstrdup, strndup - duplicate a specific number of bytes from a string
 Tp strnlen string.h CXstrlen, strnlen - get length of fixed size string
 Tp strpbrk string.h strpbrk - scan a string for a byte
 Tp strptime time.h XSIstrptime - date and time conversion
 Tp strrchr string.h strrchr - string scanning operation
 Tp strsignal string.h CXstrsignal - get name of signal
 Tp strspn string.h strspn - get length of a substring
 Tp strstr string.h strstr - find a substring
 Tp strtod stdlib.h strtod, strtof, strtold - convert a string to a double-precision number
 Tp strtof stdlib.h strtod, strtof, strtold - convert a string to a double-precision number
 Tp strtoimax inttypes.h strtoimax, strtoumax - convert string to integer type
 Tp strtok string.h strtok, strtok_r - split string into tokens
 Tp strtok_r string.h CXstrtok, strtok_r - split string into tokens
 Tp strtol stdlib.h strtol, strtoll - convert a string to a long integer
 Tp strtold stdlib.h strtod, strtof, strtold - convert a string to a double-precision number
 Tp strtoll stdlib.h strtol, strtoll - convert a string to a long integer
 Tp strtoul stdlib.h strtoul, strtoull - convert a string to an unsigned long
 Tp strtoull stdlib.h strtoul, strtoull - convert a string to an unsigned long
 Tp strtoumax inttypes.h strtoimax, strtoumax - convert string to integer type
 Tp strxfrm string.h strxfrm, strxfrm_l - string transformation
 Wp strxfrm_l string.h CXstrxfrm, strxfrm_l - string transformation
 Tp swab unistd.h XSIswab - swap bytes
 Tp swprintf stdio.h wchar.h fwprintf, swprintf, wprintf - print formatted wide-character output
 Tp swscanf stdio.h wchar.h fwscanf, swscanf, wscanf - convert formatted wide-character input
 Tp symlink unistd.h symlink, symlinkat - make a symbolic link relative to directory file descriptor
 Tp symlinkat unistd.h symlink, symlinkat - make a symbolic link relative to directory file descriptor
 Tp sync unistd.h XSIsync - schedule file system updates
 Tp sysconf unistd.h sysconf - get configurable system variables
 Tp syslog syslog.h XSIcloselog, openlog, setlogmask, syslog - control system log
 Tp system stdlib.h system - issue a command
 Tp d d tan math.h tan, tanf, tanl - tangent function
 Tp tanf math.h tan, tanf, tanl - tangent function
 Tp d d tanh math.h tanh, tanhf, tanhl - hyperbolic tangent functions
 Tp tanhf math.h tanh, tanhf, tanhl - hyperbolic tangent functions
 Tp tanhl math.h tanh, tanhf, tanhl - hyperbolic tangent functions
 Tp tanl math.h tan, tanf, tanl - tangent function
 Tp tcdrain termios.h tcdrain - wait for transmission of output
 Tp tcflow termios.h tcflow - suspend or restart the transmission or reception of data
 Tp tcflush termios.h tcflush - flush non-transmitted output data, non-read input data, or both
 Tp tcgetattr termios.h tcgetattr - get the parameters associated with the terminal
 Tp tcgetpgrp unistd.h tcgetpgrp - get the foreground process group ID
 Tp tcgetsid termios.h tcgetsid - get the process group ID for the session leader for the controlling terminal
 Tp tcsendbreak termios.h tcsendbreak - send a break for a specific duration
 Tp tcsetattr termios.h tcsetattr - set the parameters associated with the terminal
 Tp tcsetpgrp unistd.h tcsetpgrp - set the foreground process group ID
 Tp tdelete search.h XSItdelete, tfind, tsearch, twalk - manage a binary search tree
 Tp telldir dirent.h XSItelldir - current location of a named directory stream
 Tp tempnam stdio.h OB XSItempnam - create a name for a temporary file
 Tp tfind search.h XSItdelete, tfind, tsearch, twalk - manage a binary search tree
 Tp d d tgamma math.h tgamma, tgammaf, tgammal - compute gamma() function
 Tp tgammaf math.h tgamma, tgammaf, tgammal - compute gamma() function
 Tp tgammal math.h tgamma, tgammaf, tgammal - compute gamma() function
 Tp time time.h time - get time
 Tp timer_create signal.h time.h CXtimer_create - create a per-process timer
 Tp timer_delete time.h CXtimer_delete - delete a per-process timer
 Tp timer_getoverrun time.h CXtimer_getoverrun, timer_gettime, timer_settime - per-process timers
 Tp timer_gettime time.h CXtimer_getoverrun, timer_gettime, timer_settime - per-process timers
 Tp timer_settime time.h CXtimer_getoverrun, timer_gettime, timer_settime - per-process timers
 Tp times sys/times.h times - get process and waited-for child process times
 Vx timezone time.h XSIdaylight, timezone, tzname, tzset - set timezone conversion information
 Tp tmpfile stdio.h tmpfile - create a temporary file
 Tp tmpnam stdio.h OBtmpnam - create a name for a temporary file
 Tp toascii ctype.h OB XSItoascii - translate an integer to a 7-bit ASCII character
 Tp tolower ctype.h tolower, tolower_l - transliterate uppercase characters to lowercase
 Wp tolower_l ctype.h CXtolower, tolower_l - transliterate uppercase characters to lowercase
 Tp toupper ctype.h toupper, toupper_l - transliterate lowercase characters to uppercase
 Wp toupper_l ctype.h CXtoupper, toupper_l - transliterate lowercase characters to uppercase
 Tp towctrans wctype.h towctrans, towctrans_l - wide-character transliteration
 Wp towctrans_l wctype.h CXtowctrans, towctrans_l - wide-character transliteration
 Tp p towlower wctype.h towlower, towlower_l - transliterate uppercase wide-character code to lowercase
 Wp towlower_l wctype.h CXtowlower, towlower_l - transliterate uppercase wide-character code to lowercase
 Tp p towupper wctype.h towupper, towupper_l - transliterate lowercase wide-character code to uppercase
 Wp towupper_l wctype.h CXtowupper, towupper_l - transliterate lowercase wide-character code to uppercase
 Tp d d trunc math.h trunc, truncf, truncl - round to truncated integer value
 Tp truncate unistd.h truncate - truncate a file to a specified length
 Tp truncf math.h trunc, truncf, truncl - round to truncated integer value
 Tp truncl math.h trunc, truncf, truncl - round to truncated integer value
 Tp tsearch search.h XSItdelete, tfind, tsearch, twalk - manage a binary search tree
 Tp ttyname unistd.h ttyname, ttyname_r - find the pathname of a terminal
 Tp ttyname_r unistd.h ttyname, ttyname_r - find the pathname of a terminal
 Tp twalk search.h XSItdelete, tfind, tsearch, twalk - manage a binary search tree
 Vx tzname time.h CXdaylight, timezone, tzname, tzset - set timezone conversion information
 Wp tzset time.h CXdaylight, timezone, tzname, tzset - set timezone conversion information
 Tp ulimit ulimit.h OB XSIulimit - get and set process limits
 Tp umask sys/stat.h umask - set and get the file mode creation mask
 Tp uname sys/utsname.h uname - get the name of the current system
 Tp ungetc stdio.h ungetc - push byte back into input stream
 Tp ungetwc stdio.h wchar.h ungetwc - push wide-character code back into the input stream
 Tp unlink unistd.h unlink, unlinkat - remove a directory entry relative to directory file descriptor
 Tp unlinkat unistd.h unlink, unlinkat - remove a directory entry relative to directory file descriptor
 Tp unlockpt stdlib.h XSIunlockpt - unlock a pseudo-terminal master/slave pair
 Tp unsetenv stdlib.h CXunsetenv - remove an environment variable
 Wp uselocale locale.h CXuselocale - use locale in current thread
 Tp utime utime.h OButime - set file access and modification times
 Tp utimensat sys/stat.h futimens, utimensat, utimes - set file access and modification times
 Tp utimes sys/time.h XSIfutimens, utimensat, utimes - set file access and modification times
  d va_arg stdarg.h va_arg, va_copy, va_end, va_start - handle variable argument list
  d va_copy stdarg.h va_arg, va_copy, va_end, va_start - handle variable argument list
  d va_end stdarg.h va_arg, va_copy, va_end, va_start - handle variable argument list
  d va_start stdarg.h va_arg, va_copy, va_end, va_start - handle variable argument list
 Tp vdprintf stdarg.h stdio.h CXvdprintf, vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
 Tp vfprintf stdarg.h stdio.h vdprintf, vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
 Tp vfscanf stdarg.h stdio.h vfscanf, vscanf, vsscanf - format input of a stdarg argument list
 Tp vfwprintf stdarg.h stdio.h wchar.h vfwprintf, vswprintf, vwprintf - wide-character formatted output of a stdarg argument list
 Tp vfwscanf stdarg.h stdio.h wchar.h vfwscanf, vswscanf, vwscanf - wide-character formatted input of a stdarg argument list
 Tp vprintf stdarg.h stdio.h vdprintf, vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
 Tp vscanf stdarg.h stdio.h vfscanf, vscanf, vsscanf - format input of a stdarg argument list
 Tp vsnprintf stdarg.h stdio.h vdprintf, vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
 Tp vsprintf stdarg.h stdio.h vdprintf, vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
 Tp vsscanf stdarg.h stdio.h vfscanf, vscanf, vsscanf - format input of a stdarg argument list
 Tp vswprintf stdarg.h stdio.h wchar.h vfwprintf, vswprintf, vwprintf - wide-character formatted output of a stdarg argument list
 Tp vswscanf stdarg.h stdio.h wchar.h vfwscanf, vswscanf, vwscanf - wide-character formatted input of a stdarg argument list
 Tp vwprintf stdarg.h stdio.h wchar.h vfwprintf, vswprintf, vwprintf - wide-character formatted output of a stdarg argument list
 Tp vwscanf stdarg.h stdio.h wchar.h vfwscanf, vswscanf, vwscanf - wide-character formatted input of a stdarg argument list
 Tp wait sys/wait.h wait, waitpid - wait for a child process to stop or terminate
 Tp waitid sys/wait.h waitid - wait for a child process to change state
 Tp waitpid sys/wait.h wait, waitpid - wait for a child process to stop or terminate
 Tp wcpcpy wchar.h CXwcpcpy, wcscpy - copy a wide-character string, returning a pointer to its end
 Tp wcpncpy wchar.h CXwcpncpy, wcsncpy - copy a fixed-size wide-character string, returning a pointer to its end
 Tp wcrtomb wchar.h wcrtomb - convert a wide-character code to a character (restartable)
 Tp wcscasecmp wchar.h CXwcscasecmp, wcscasecmp_l, wcsncasecmp, wcsncasecmp_l - case-insensitive wide-character string comparison
 Tp wcscasecmp_l wchar.h CXwcscasecmp, wcscasecmp_l, wcsncasecmp, wcsncasecmp_l - case-insensitive wide-character string comparison
 Tp wcscat wchar.h wcscat - concatenate two wide-character strings
 Tp wcschr wchar.h wcschr - wide-character string scanning operation
 Tp wcscmp wchar.h wcscmp - compare two wide-character strings
 Tp wcscoll wchar.h wcscoll, wcscoll_l - wide-character string comparison using collating information
 Wp wcscoll_l wchar.h CXwcscoll, wcscoll_l - wide-character string comparison using collating information
 Tp wcscpy wchar.h wcpcpy, wcscpy - copy a wide-character string, returning a pointer to its end
 Tp wcscspn wchar.h wcscspn - get the length of a complementary wide substring
 Tp wcsdup wchar.h CXwcsdup - duplicate a wide-character string
 Tp wcsftime wchar.h wcsftime - convert date and time to a wide-character string
 Tp wcslen wchar.h wcslen, wcsnlen - get length of a fixed-sized wide-character string
 Tp wcsncasecmp wchar.h CXwcscasecmp, wcscasecmp_l, wcsncasecmp, wcsncasecmp_l - case-insensitive wide-character string comparison
 Tp wcsncasecmp_l wchar.h CXwcscasecmp, wcscasecmp_l, wcsncasecmp, wcsncasecmp_l - case-insensitive wide-character string comparison
 Tp wcsncat wchar.h wcsncat - concatenate a wide-character string with part of another
 Tp wcsncmp wchar.h wcsncmp - compare part of two wide-character strings
 Tp wcsncpy wchar.h wcpncpy, wcsncpy - copy a fixed-size wide-character string, returning a pointer to its end
 Tp wcsnlen wchar.h CXwcslen, wcsnlen - get length of a fixed-sized wide-character string
 Tp wcsnrtombs wchar.h CXwcsnrtombs, wcsrtombs - convert a wide-character string to a character string (restartable)
 Tp wcspbrk wchar.h wcspbrk - scan a wide-character string for a wide-character code
 Tp wcsrchr wchar.h wcsrchr - wide-character string scanning operation
 Tp wcsrtombs wchar.h wcsnrtombs, wcsrtombs - convert a wide-character string to a character string (restartable)
 Tp wcsspn wchar.h wcsspn - get the length of a wide substring
 Tp wcsstr wchar.h wcsstr - find a wide-character substring
 Tp wcstod wchar.h wcstod, wcstof, wcstold - convert a wide-character string to a double-precision number
 Tp wcstof wchar.h wcstod, wcstof, wcstold - convert a wide-character string to a double-precision number
 Tp wcstoimax stddef.h inttypes.h wcstoimax, wcstoumax - convert a wide-character string to an integer type
 Tp wcstok wchar.h wcstok - split a wide-character string into tokens
 Tp wcstol wchar.h wcstol, wcstoll - convert a wide-character string to a long integer
 Tp wcstold wchar.h wcstod, wcstof, wcstold - convert a wide-character string to a double-precision number
 Tp wcstoll wchar.h wcstol, wcstoll - convert a wide-character string to a long integer
 Tp wcstombs stdlib.h wcstombs - convert a wide-character string to a character string
 Tp wcstoul wchar.h wcstoul, wcstoull - convert a wide-character string to an unsigned long
 Tp wcstoull wchar.h wcstoul, wcstoull - convert a wide-character string to an unsigned long
 Tp wcstoumax stddef.h inttypes.h wcstoimax, wcstoumax - convert a wide-character string to an integer type
 Tp wcswidth wchar.h XSIwcswidth - number of column positions of a wide-character string
 Tp wcsxfrm wchar.h wcsxfrm, wcsxfrm_l - wide-character string transformation
 Wp wcsxfrm_l wchar.h CXwcsxfrm, wcsxfrm_l - wide-character string transformation
 Tp wctob stdio.h wchar.h wctob - wide-character to single-byte conversion
 Tp wctomb stdlib.h wctomb - convert a wide-character code to a character
 Tp wctrans wctype.h wctrans, wctrans_l - define character mapping
 Wp wctrans_l wctype.h CXwctrans, wctrans_l - define character mapping
 Tp p wctype wctype.h wctype, wctype_l - define character class
 Wp wctype_l wctype.h CXwctype, wctype_l - define character class
 Tp wcwidth wchar.h XSIwcwidth - number of column positions of a wide-character code
 Tp wmemchr wchar.h wmemchr - find a wide character in memory
 Tp wmemcmp wchar.h wmemcmp - compare wide characters in memory
 Tp wmemcpy wchar.h wmemcpy - copy wide characters in memory
 Tp wmemmove wchar.h wmemmove - copy wide characters in memory with overlapping areas
 Tp wmemset wchar.h wmemset - set wide characters in memory
 Tp wordexp wordexp.h wordexp, wordfree - perform word expansions
 Tp wordfree wordexp.h wordexp, wordfree - perform word expansions
 Tp wprintf stdio.h wchar.h fwprintf, swprintf, wprintf - print formatted wide-character output
 Tp write unistd.h pwrite, write - write on a file
 Tp writev sys/uio.h XSIwritev - write a vector
 Tp wscanf stdio.h wchar.h fwscanf, swscanf, wscanf - convert formatted wide-character input
 Tp y0 math.h XSIy0, y1, yn - Bessel functions of the second kind
 Tp y1 math.h XSIy0, y1, yn - Bessel functions of the second kind
 Tp yn math.h XSIy0, y1, yn - Bessel functions of the second kind

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