- nearbyintf
- nearbyintl
- netlink
- nextafter
- nexttoward
- nftw
- nl_langinfo
- none
- ntohl
- ntohs
- on_exit
- opendir
- openlog
- openpty
- pathconf
- pclose
- perror
- popen
- posix_memalign
- pow
- printf
- profil
- psignal
- ptsname
- putc
- putchar
- putenv
- putpwent
- puts
- putw
- putwchar
- qecvt
- qecvt_r
- qfcvt
- qfcvt_r
- qgcvt
- qsort
- raise
- rand
- random
- rcmd
- readdir
- realloc
- realpath
- recno
- regcomp
- regerror
- regexec
- regfree
- remove
- remque
- res_init
- rewind
- rewinddir
- re_comp
- re_exec
- rindex
- rint
- rintf
- rintl
- round
- roundf
- roundl
- rpc
- rresvport
- rtnetlink
- ruserok
- scandir
- scanf
- seekdir
MAN (3)
Library functions, covering in particular the C standard library