Section 0p: POSIX Header Files

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Man pages in this section:

aio.hasynchronous input and output
arpa_inet.hdefinitions for internet operations
assert.hverify program assertion
complex.hcomplex arithmetic
cpio.hcpio archive values
ctype.hcharacter types
dirent.hformat of directory entries
dlfcn.hdynamic linking
errno.hsystem error numbers
fcntl.hfile control options
fenv.hfloating-point environment
float.hfloating types
fmtmsg.hmessage display structures
fnmatch.hfilename-matching types
ftw.hfile tree traversal
glob.hpathname pattern-matching types
grp.hgroup structure
iconv.hcodeset conversion facility
inttypes.hfixed size integer types
iso646.halternative spellings
langinfo.hlanguage information constants
libgen.hdefinitions for pattern matching functions
limits.himplementation-defined constants
locale.hcategory macros
math.hmathematical declarations
monetary.hmonetary types
mqueue.hmessage queues (REALTIME)
ndbm.hdefinitions for ndbm database operations
netdb.hdefinitions for network database operations
net_if.hsockets local interfaces
netinet_in.hInternet address family
netinet_tcp.hdefinitions for the Internet Transmission Control Protocol (TCP)
nl_types.hdata types
poll.hdefinitions for the poll() function
pthread.hthreads
pwd.hpassword structure
regex.hregular expression matching types
sched.hexecution scheduling
search.hsearch tables
semaphore.hsemaphores
setjmp.hstack environment declarations
signal.hsignals
spawn.hspawn (ADVANCED REALTIME)
stdarg.hhandle variable argument list
stdbool.hboolean type and values
stddef.hstandard type definitions
stdint.hinteger types
stdio.hstandard buffered input/output
stdlib.hstandard library definitions
string.hstring operations
strings.hstring operations
stropts.hSTREAMS interface (STREAMS)
sys_ipc.hXSI interprocess communication access structure
syslog.hdefinitions for system error logging
sys_mman.hmemory management declarations
sys_msg.hXSI message queue structures
sys_resource.hdefinitions for XSI resource operations
sys_select.hselect types
sys_sem.hXSI semaphore facility
sys_shm.hXSI shared memory facility
sys_socket.hmain sockets header
sys_stat.hdata returned by the stat() function
sys_statvfs.hVFS File System information structure
sys_time.htime types
sys_times.hfile access and modification times structure
sys_types.hdata types
sys_uio.hdefinitions for vector I/O operations
sys_un.hdefinitions for UNIX domain sockets
sys_utsname.hsystem name structure
sys_wait.hdeclarations for waiting
tar.hextended tar definitions
termios.hdefine values for termios
tgmath.htype-generic macros
time.htime types
trace.htracing
ulimit.hulimit commands
unistd.hstandard symbolic constants and types
utime.haccess and modification times structure
utmpx.huser accounting database definitions
wchar.hwide-character handling
wctype.hwide-character classification and mapping utilities
wordexp.hword-expansion types