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(libc.info)Concept Index


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/etc/hostname
Host Identification.
/etc/nsswitch.conf
NSS Configuration File.
4.N BSD Unix
Berkeley Unix.
__va_copy
Copying and Concatenation.
_POSIX_OPTION_ORDER environment variable.
Standard Environment.
_POSIX_SAVED_IDS
How Change Persona.
abort signal
Program Error Signals.
aborting a program
Aborting a Program.
absolute file name
File Name Resolution.
absolute priority
Absolute Priority.
absolute value functions
Absolute Value.
accepting connections
Accepting Connections.
access permission for a file
Access Permission.
access, testing for
Testing File Access.
accessing directories
Accessing Directories.
address of socket
Socket Addresses.
address space <1>
Program Basics.
address space
Memory Subsystem.
alarm signal
Alarm Signals.
alarms, setting
Setting an Alarm.
alignment (in obstacks)
Obstacks Data Alignment.
alignment (with malloc)
Aligned Memory Blocks.
alloca disadvantages
Disadvantages of Alloca.
alloca function
Variable Size Automatic.
allocating pseudo-terminals
Allocation.
allocation (obstacks)
Allocation in an Obstack.
allocation debugging
Allocation Debugging.
allocation hooks, for malloc
Hooks for Malloc.
allocation of memory with malloc
Basic Allocation.
allocation size of string
Representation of Strings.
allocation statistics
Statistics of Malloc.
alphabetic character <1>
Classification of Wide Characters.
alphabetic character
Classification of Characters.
alphanumeric character <1>
Classification of Wide Characters.
alphanumeric character
Classification of Characters.
append-access files
File Position.
argc (program argument count)
Program Arguments.
argp (program argument parser)
Argp.
argp parser functions
Argp Parser Functions.
ARGP_HELP_FMT environment variable
Argp User Customization.
argument parsing with argp
Argp.
argument promotion
Calling Variadics.
argument vectors, null-character separated
Argz and Envz Vectors.
arguments (variadic functions)
Receiving Arguments.
arguments, how many
How Many Arguments.
arguments, to program
Program Arguments.
argv (program argument vector)
Program Arguments.
argz vectors (string vectors)
Argz and Envz Vectors.
arithmetic expansion
Expansion Stages.
array comparison functions
String/Array Comparison.
array copy functions
Copying and Concatenation.
array search function
Array Search Function.
array sort function
Array Sort Function.
ASCII character
Classification of Characters.
assertions
Consistency Checking.
attributes of a file
Attribute Meanings.
automatic freeing
Variable Size Automatic.
automatic memory allocation
Memory Allocation and C.
automatic storage class
Memory Allocation and C.
automatic storage with variable size
Variable Size Automatic.
background job
Concepts of Job Control.
background job, launching
Foreground and Background.
backtrace
Backtraces.
backtrace_fd
Backtraces.
backtrace_symbols
Backtraces.
base (of floating point number)
Floating Point Concepts.
baud rate
Line Speed.
Berkeley Unix
Berkeley Unix.
Bessel functions
Special Functions.
bias (of floating point number exponent)
Floating Point Concepts.
big-endian
Byte Order.
binary I/O to a stream
Block Input/Output.
binary search function (for arrays)
Array Search Function.
binary stream
Binary Streams.
binding a socket address
Socket Addresses.
blank character <1>
Classification of Wide Characters.
blank character
Classification of Characters.
block I/O to a stream
Block Input/Output.
blocked signals
Delivery of Signal.
blocked signals, checking for
Checking for Pending Signals.
blocking signals
Blocking Signals.
blocking signals, in a handler
Blocking for Handler.
bootstrapping, and services
Actions in the NSS configuration.
break condition, detecting
Input Modes.
break condition, generating
Line Control.
breaking a string into tokens
Finding Tokens in a String.
broken pipe signal
Operation Error Signals.
broken-down time <1>
Broken-down Time.
broken-down time
Calendar Time.
BSD compatibility library
Process Group Functions.
BSD compatibility library.
Feature Test Macros.
BSD Unix
Berkeley Unix.
buffering of streams
Stream Buffering.
buffering, controlling
Controlling Buffering.
bugs, reporting
Reporting Bugs.
bus error
Program Error Signals.
butterfly
Misc FP Arithmetic.
byte order conversion, for socket
Byte Order.
byte stream
Socket Concepts.
C++ streams
Streams and I18N.
calendar time
Time Basics.
calendar time and broken-down time
Broken-down Time.
calendar, Gregorian
Calendar Time.
calling variadic functions
Calling Variadics.
canonical input processing
Canonical or Not.
capacity limits, POSIX
General Limits.
carrier detect
Control Modes.
case conversion of characters
Case Conversion.
catching signals
Delivery of Signal.
categories for locales
Locale Categories.
change working directory
Working Directory.
changing the locale
Setting the Locale.
changing the size of a block (malloc)
Changing Block Size.
changing the size of a block (obstacks)
Growing Objects.
channels
Stream/Descriptor Precautions.
character case conversion
Case Conversion.
character predicates
Classification of Characters.
character testing
Classification of Characters.
checking for pending signals
Checking for Pending Signals.
child process <1>
Process Creation Concepts.
child process <2>
Processes.
child process
Processor Time.
child process signal
Job Control Signals.
chunks
Obstack Chunks.
classes, floating-point
Floating Point Classes.
classification of characters
Classification of Characters.
cleaning up a stream
Linked Channels.
clearing terminal input queue
Line Control.
client
Connections.
clock ticks
Processor And CPU Time.
clock, high accuracy
High Accuracy Clock.
close-on-exec (file descriptor flag)
Descriptor Flags.
closing a file descriptor
Opening and Closing Files.
closing a socket
Closing a Socket.
closing a stream
Closing Streams.
collating strings
Collation Functions.
combining locales
Choosing Locale.
command argument syntax
Argument Syntax.
command arguments, parsing
Parsing Program Arguments.
command line arguments
Program Arguments.
command substitution
Expansion Stages.
communication style (of a socket)
Socket Concepts.
comparing strings and arrays
String/Array Comparison.
Comparison Function
Comparison Functions.
compiling
Configuring and compiling.
complex exponentiation functions
Exponents and Logarithms.
complex logarithm functions
Exponents and Logarithms.
complex numbers
Complex Numbers.
complex trigonometric functions
Trig Functions.
concatenating strings
Copying and Concatenation.
configurations, all supported
Supported Configurations.
configuring
Configuring and compiling.
conjugate complex numbers
Operations on Complex.
connecting a socket
Connecting.
connection
Connections.
consistency checking
Consistency Checking.
consistency checking, of heap
Heap Consistency Checking.
constants <1>
Mathematical Constants.
constants
Memory Concepts.
continue signal
Job Control Signals.
control character <1>
Classification of Wide Characters.
control character
Classification of Characters.
control operations on files
Control Operations.
controlling process
Controlling Terminal.
controlling terminal
Concepts of Job Control.
controlling terminal, access to
Access to the Terminal.
controlling terminal, determining
Identifying the Terminal.
controlling terminal, setting
Open-time Flags.
conversion specifications (printf)
Formatted Output Basics.
conversion specifications (scanf)
Formatted Input Basics.
converting byte order
Byte Order.
converting case of characters
Case Conversion.
converting file descriptor to stream
Descriptors and Streams.
converting floats to integers
Rounding Functions.
converting group ID to group name
Lookup Group.
converting group name to group ID
Lookup Group.
converting host address to name
Host Names.
converting host name to address
Host Names.
converting network name to network number
Networks Database.
converting network number to network name
Networks Database.
converting port number to service name
Services Database.
converting service name to port number
Services Database.
converting string to collation order
Collation Functions.
converting strings to numbers
Parsing of Numbers.
converting user ID to user name
Lookup User.
converting user name to user ID
Lookup User.
cookie, for custom stream
Streams and Cookies.
copy-on-write page fault
Locked Memory Details.
copying strings and arrays
Copying and Concatenation.
cpu priority
Priority.
CPU time <1>
Processor Time.
CPU time <2>
Processor And CPU Time.
CPU time
Time Basics.
create on open (file status flag)
Open-time Flags.
creating a directory
Creating Directories.
creating a FIFO special file
FIFO Special Files.
creating a pipe
Creating a Pipe.
creating a pipe to a subprocess
Pipe to a Subprocess.
creating a process
Process Creation Concepts.
creating a socket
Creating a Socket.
creating a socket pair
Socket Pairs.
creating special files
Making Special Files.
cube root function
Exponents and Logarithms.
currency symbols
Currency Symbol.
current limit
Limits on Resources.
current working directory
Working Directory.
custom streams
Custom Streams.
customizing printf
Customizing Printf.
data loss on sockets
Socket Concepts.
databases
Name Service Switch.
datagram socket
Datagrams.
datagrams, transmitting
Sending Datagrams.
date
Time Basics.
Daylight Saving Time
Broken-down Time.
decimal digit character
Classification of Characters.
decimal-point separator
General Numeric.
declaration (compared to definition)
Header Files.
declaring variadic functions
Calling Variadics.
decompose complex numbers
Operations on Complex.
default action (for a signal)
Delivery of Signal.
default action for a signal
Basic Signal Handling.
default argument promotions
Calling Variadics.
default value, and NSS
Notes on NSS Configuration File.
defining new printf conversions
Customizing Printf.
definition (compared to declaration)
Header Files.
delayed suspend character
Signal Characters.
deleting a directory
Deleting Files.
deleting a file
Deleting Files.
delivery of signals
Delivery of Signal.
descriptors and streams
Stream/Descriptor Precautions.
digit character <1>
Classification of Wide Characters.
digit character
Classification of Characters.
directories, accessing
Accessing Directories.
directories, creating
Creating Directories.
directories, deleting
Deleting Files.
directory
Directories.
directory entry
Directories.
directory hierarchy
Working with Directory Trees.
directory stream
Accessing Directories.
disadvantages of alloca
Disadvantages of Alloca.
DISCARD character
Other Special.
division by zero
FP Exceptions.
DNS
Host Identification.
DNS server unavailable
Actions in the NSS configuration.
domain (of socket)
Socket Concepts.
domain error
Math Error Reporting.
domain name
Host Identification.
Domain Name System
Host Identification.
dot notation, for Internet addresses
Abstract Host Addresses.
DSUSP character
Signal Characters.
duplicating file descriptors
Duplicating Descriptors.
dynamic memory allocation
Memory Allocation and C.
EBCDIC
Extended Char Intro.
echo of terminal input
Local Modes.
effective group ID
Process Persona.
effective user ID
Process Persona.
efficiency and malloc
Efficiency and Malloc.
efficiency and obstacks
Extra Fast Growing.
efficiency of chunks
Obstack Chunks.
EINTR, and restarting interrupted primitives
Interrupted Primitives.
elapsed time <1>
Elapsed Time.
elapsed time
Time Basics.
encryption
Trivial Encryption.
end of file, on a stream
EOF and Errors.
end-of-file, on a file descriptor
I/O Primitives.
environment
Environment Variables.
environment access
Environment Access.
environment representation
Environment Access.
environment variable
Environment Variables.
environment vectors, null-character separated
Argz and Envz Vectors.
envz vectors (environment vectors)
Argz and Envz Vectors.
EOF character
Editing Characters.
EOL character
Editing Characters.
EOL2 character
Editing Characters.
epoch
Simple Calendar Time.
ERASE character
Editing Characters.
errno
System Calls.
error codes
Error Reporting.
error messages, in argp
Argp Helper Functions.
error reporting
Error Reporting.
errors, mathematical
Math Error Reporting.
establishing a handler
Signal Actions.
ethers
NSS Basics.
EUC
Extended Char Intro.
EUC-JP
glibc iconv Implementation.
exception <1>
Program Error Signals.
exception
FP Exceptions.
exclusive lock
File Locks.
exec functions
Executing a File.
execing a program
Memory Concepts.
executable
Memory Concepts.
executing a file
Executing a File.
exit status
Exit Status.
exit status value
Program Termination.
exiting a program
Memory Concepts.
expansion of shell words
Word Expansion.
exponent (of floating point number)
Floating Point Concepts.
exponentiation functions
Exponents and Logarithms.
extending printf
Customizing Printf.
extracting file descriptor from stream
Descriptors and Streams.
fcntl function
Control Operations.
FDL, GNU Free Documentation License
Documentation License.
feature test macros
Feature Test Macros.
field splitting
Expansion Stages.
FIFO special file
Pipes and FIFOs.
file access permission
Access Permission.
file access time
File Times.
file attribute modification time
File Times.
file attributes
Attribute Meanings.
file creation mask
Setting Permissions.
file descriptor flags
Descriptor Flags.
file descriptor sets, for select
Waiting for I/O.
file descriptors, standard
Descriptors and Streams.
file locks
File Locks.
file modification time
File Times.
file name
File Names.
file name component
Directories.
file name errors
File Name Errors.
file name resolution
File Name Resolution.
file name translation flags
Open-time Flags.
file names, multiple
Hard Links.
file owner
File Owner.
file permission bits
Permission Bits.
file pointer
Streams.
file position
File Position.
file positioning on a file descriptor
File Position Primitive.
file positioning on a stream
File Positioning.
file status flags
File Status Flags.
files, accessing
Memory Concepts.
filtering i/o through subprocess
Pipe to a Subprocess.
flag character (printf)
Output Conversion Syntax.
flag character (scanf)
Input Conversion Syntax.
flags for sigaction
Flags for Sigaction.
flags, file name translation
Open-time Flags.
flags, open-time action
Open-time Flags.
floating point
Floating Point Numbers.
floating point, IEEE
IEEE Floating Point.
floating type measurements
Floating Type Macros.
floating-point classes
Floating Point Classes.
floating-point exception
Program Error Signals.
flow control, terminal
Line Control.
flushing a stream
Flushing Buffers.
flushing terminal output queue
Line Control.
foreground job
Concepts of Job Control.
foreground job, launching
Foreground and Background.
forking a process
Process Creation Concepts.
format string, for printf
Formatted Output.
format string, for scanf
Formatted Input.
formatted input from a stream
Formatted Input.
formatted messages
Formatted Messages.
formatted output to a stream
Formatted Output.
FP arithmetic
FP Bit Twiddling.
FQDN
Host Identification.
frame, real memory
Memory Concepts.
free documentation
Free Manuals.
freeing (obstacks)
Freeing Obstack Objects.
freeing memory
Memory Concepts.
freeing memory allocated with malloc
Freeing after Malloc.
fully buffered stream
Buffering Concepts.
function prototypes (variadic)
Variadic Prototypes.
gamma function
Special Functions.
gcvt_r
System V Number Conversion.
gencat
The gencat program.
generation of signals
Signal Generation.
generic i/o control operations
IOCTLs.
globbing
Globbing.
graphic character <1>
Classification of Wide Characters.
graphic character
Classification of Characters.
Gregorian calendar
Calendar Time.
group
NSS Basics.
group database
Group Database.
group ID
User and Group IDs.
group name
User and Group IDs.
group owner of a file
File Owner.
grouping of digits
General Numeric.
growing objects (in obstacks)
Growing Objects.
handling multiple signals
Merged Signals.
hangup signal
Termination Signals.
hard limit
Limits on Resources.
hard link
Hard Links.
header files
Header Files.
heap consistency checking
Heap Consistency Checking.
heap, dynamic allocation from
Unconstrained Allocation.
heap, freeing memory from
Freeing after Malloc.
hexadecimal digit character <1>
Classification of Wide Characters.
hexadecimal digit character
Classification of Characters.
hidden bit (of floating point number mantissa)
Floating Point Concepts.
hierarchy, directory
Working with Directory Trees.
high-priority data
Out-of-Band Data.
high-resolution time
Calendar Time.
holes in files
File Position Primitive.
home directory
Standard Environment.
HOME environment variable
Standard Environment.
hook functions (of custom streams)
Hook Functions.
host address, Internet
Abstract Host Addresses.
host name
Host Identification.
hostname
Host Identification.
hosts
NSS Basics.
hosts database
Host Names.
how many arguments
How Many Arguments.
hyperbolic functions
Hyperbolic Functions.
identifying terminals
Is It a Terminal.
IEEE 754
Floating Point Numbers.
IEEE floating point
Floating Point Numbers.
IEEE floating point representation
IEEE Floating Point.
IEEE Std 1003.1
POSIX.
IEEE Std 1003.2
POSIX.
ignore action for a signal
Basic Signal Handling.
illegal instruction
Program Error Signals.
impossible events
Consistency Checking.
independent channels
Independent Channels.
inexact exception
FP Exceptions.
infinity
Infinity and NaN.
initial signal actions
Initial Signal Actions.
inode number
Attribute Meanings.
input available signal
Asynchronous I/O Signals.
input conversions, for scanf
Table of Input Conversions.
input from multiple files
Waiting for I/O.
installation tools
Tools for Compilation.
installing
Running make install.
integer
Integers.
integer division functions
Integer Division.
integer type range
Range of Type.
integer type width
Width of Type.
interactive signals, from terminal
Local Modes.
interactive stop signal
Job Control Signals.
internal representation
Extended Char Intro.
internationalization
Locales.
Internet host address
Abstract Host Addresses.
Internet namespace, for sockets
Internet Namespace.
interprocess communication, with FIFO
FIFO Special Files.
interprocess communication, with pipes
Creating a Pipe.
interprocess communication, with signals
Kill Example.
interprocess communication, with sockets
Sockets.
interrupt character
Signal Characters.
interrupt signal
Termination Signals.
interrupt-driven input
Interrupt Input.
interrupting primitives
Interrupted Primitives.
interval
Time Basics.
interval timer, setting
Setting an Alarm.
INTR character
Signal Characters.
invalid exception
FP Exceptions.
inverse complex hyperbolic functions
Hyperbolic Functions.
inverse complex trigonometric functions
Inverse Trig Functions.
inverse hyperbolic functions
Hyperbolic Functions.
inverse trigonometric functions
Inverse Trig Functions.
invocation of program
Program Arguments.
IOCTLs
IOCTLs.
ISO 10646
Extended Char Intro.
ISO 2022
Extended Char Intro.
ISO 6937
Extended Char Intro.
ISO C
ISO C.
ISO-2022-JP
glibc iconv Implementation.
ISO/IEC 9945-1
POSIX.
ISO/IEC 9945-2
POSIX.
job
Job Control.
job control
Job Control.
job control functions
Functions for Job Control.
job control is optional
Job Control is Optional.
job control signals
Job Control Signals.
job control, enabling
Initializing the Shell.
Kermit the frog
Search/Sort Example.
kernel call
System Calls.
kernel header files
Linux.
KILL character
Editing Characters.
kill signal
Termination Signals.
killing a process
Signaling Another Process.
Korn Shell
Wildcard Matching.
LANG environment variable <1>
Standard Environment.
LANG environment variable
The catgets Functions.
launching jobs
Launching Jobs.
LC_ALL environment variable <1>
Standard Environment.
LC_ALL environment variable
The catgets Functions.
LC_COLLATE environment variable
Standard Environment.
LC_CTYPE environment variable
Standard Environment.
LC_MESSAGES environment variable <1>
Standard Environment.
LC_MESSAGES environment variable
The catgets Functions.
LC_MONETARY environment variable
Standard Environment.
LC_NUMERIC environment variable
Standard Environment.
LC_TIME environment variable
Standard Environment.
leap second
Broken-down Time.
length of string
Representation of Strings.
level, for socket options
Socket Options.
LGPL, Lesser General Public License
Copying.
library
Introduction.
limit
Limits on Resources.
limits on resource usage
Limits on Resources.
limits, file name length
Limits for Files.
limits, floating types
Floating Type Macros.
limits, integer types
Range of Type.
limits, link count of files
Limits for Files.
limits, number of open files
General Limits.
limits, number of processes
General Limits.
limits, number of supplementary group IDs
General Limits.
limits, pipe buffer size
Limits for Files.
limits, POSIX
General Limits.
limits, program argument size
General Limits.
limits, terminal input queue
Limits for Files.
limits, time zone name length
General Limits.
line buffered stream
Buffering Concepts.
line speed
Line Speed.
lines (in a text file)
Binary Streams.
link
Directories.
link, hard
Hard Links.
link, soft
Symbolic Links.
link, symbolic
Symbolic Links.
linked channels
Linked Channels.
listening (sockets)
Listening.
literals
Memory Concepts.
little-endian
Byte Order.
LNEXT character
Other Special.
load average
Processor Resources.
local namespace, for sockets
Local Namespace.
local network address number
Abstract Host Addresses.
local time
Calendar Time.
locale categories
Locale Categories.
locale, changing
Setting the Locale.
locales
Locales.
locking pages
Locking Pages.
logarithm functions
Exponents and Logarithms.
login name
User and Group IDs.
login name, determining
Who Logged In.
LOGNAME environment variable
Standard Environment.
long jumps
Non-Local Exits.
long-named options
Argument Syntax.
longjmp
Advantages of Alloca.
loss of data on sockets
Socket Concepts.
lost resource signal
Operation Error Signals.
lower-case character <1>
Classification of Wide Characters.
lower-case character
Classification of Characters.
macros
Obstack Functions.
main function
Program Arguments.
malloc debugger
Allocation Debugging.
malloc function
Unconstrained Allocation.
mantissa (of floating point number)
Floating Point Concepts.
matching failure, in scanf
Formatted Input Basics.
math errors
Errors in Math Functions.
mathematical constants
Mathematical Constants.
maximum
Misc FP Arithmetic.
maximum field width (scanf)
Input Conversion Syntax.
maximum limit
Limits on Resources.
maximum possible integer
Integers.
measurements of floating types
Floating Type Macros.
memory allocation
Memory.
memory lock
Locking Pages.
memory mapped file
Memory Concepts.
memory mapped I/O
Memory Concepts.
memory page
Memory Subsystem.
merging of signals
Merged Signals.
MIN termios slot
Noncanonical Input.
minimum
Misc FP Arithmetic.
minimum field width (printf)
Output Conversion Syntax.
minimum possible integer
Integers.
mixing descriptors and streams
Stream/Descriptor Precautions.
modem disconnect
Control Modes.
modem status lines
Control Modes.
monetary value formatting
The Lame Way to Locale Data.
multi-threaded application
Streams and Threads.
multibyte character
Extended Char Intro.
multibyte character string
Representation of Strings.
multibyte string
Representation of Strings.
multiple names for one file
Hard Links.
multiplexing input
Waiting for I/O.
multiply-add
Misc FP Arithmetic.
name of running program
Error Messages.
name of socket
Socket Addresses.
Name Service Switch
Name Service Switch.
name space
Reserved Names.
names of signals
Standard Signals.
namespace (of socket)
Socket Concepts.
NaN <1>
FP Bit Twiddling.
NaN
Infinity and NaN.
Netgroup
Netgroup Data.
netgroup
NSS Basics.
network byte order
Byte Order.
network number
Abstract Host Addresses.
network protocol
Socket Concepts.
networks
NSS Basics.
networks database
Networks Database.
NIS
Host Identification.
NIS domain name
Host Identification.
nisplus, and booting
Actions in the NSS configuration.
nisplus, and completeness
Actions in the NSS configuration.
NLSPATH environment variable <1>
Standard Environment.
NLSPATH environment variable
The catgets Functions.
non-blocking open
Open-time Flags.
non-local exit, from signal handler
Longjmp in Handler.
non-local exits
Non-Local Exits.
noncanonical input processing
Canonical or Not.
normalization functions (floating-point)
Normalization Functions.
normalized floating point number
Floating Point Concepts.
not a number
Infinity and NaN.
NSS
Name Service Switch.
nsswitch.conf
NSS Configuration File.
null character
Representation of Strings.
null pointer constant
Null Pointer Constant.
null wide character
Representation of Strings.
number of arguments passed
How Many Arguments.
number syntax, parsing
Parsing of Numbers.
numeric value formatting
The Lame Way to Locale Data.
obstack status
Status of an Obstack.
obstacks
Obstacks.
open-time action flags
Open-time Flags.
opening a file
I/O Concepts.
opening a file descriptor
Opening and Closing Files.
opening a pipe
Creating a Pipe.
opening a pseudo-terminal pair
Pseudo-Terminal Pairs.
opening a socket
Creating a Socket.
opening a socket pair
Socket Pairs.
opening a stream
Opening Streams.
Optimization
FP Function Optimizations.
optimizing NSS
Notes on NSS Configuration File.
option parsing with argp
Argp.
optional arguments
Variadic Functions.
optional POSIX features
System Options.
orientation, stream <1>
Streams and I18N.
orientation, stream
Opening Streams.
orphaned process group
Orphaned Process Groups.
out-of-band data
Out-of-Band Data.
output conversions, for printf
Table of Output Conversions.
output possible signal
Asynchronous I/O Signals.
overflow exception
FP Exceptions.
owner of a file
File Owner.
packet
Socket Concepts.
page boundary
Aligned Memory Blocks.
page fault
Memory Concepts.
page fault, copy-on-write
Locked Memory Details.
page frame
Memory Concepts.
page, memory
Memory Subsystem.
page, virtual memory
Memory Concepts.
paging <1>
Locking Pages.
paging
Memory Concepts.
parameter promotion
String/Array Conventions.
parent directory
File Name Resolution.
parent process <1>
Process Creation Concepts.
parent process
Processes.
parity checking
Input Modes.
parsing a template string
Parsing a Template String.
parsing numbers (in formatted input)
Parsing of Numbers.
parsing program arguments
Parsing Program Arguments.
parsing tokens from a string
Finding Tokens in a String.
passwd
NSS Basics.
password database
User Database.
PATH environment variable
Standard Environment.
pause function
Waiting for a Signal.
peeking at input
Unreading.
pending signals
Delivery of Signal.
pending signals, checking for
Checking for Pending Signals.
period of time
Time Basics.
permission to access a file
Access Permission.
persona
Process Persona.
physical address
Memory Subsystem.
physical memory
Memory Subsystem.
pi (trigonometric constant)
Trig Functions.
pipe
Pipes and FIFOs.
pipe signal
Operation Error Signals.
pipe to a subprocess
Pipe to a Subprocess.
port number
Ports.
positioning a file descriptor
File Position Primitive.
positioning a stream
File Positioning.
positive difference
Misc FP Arithmetic.
POSIX
POSIX.
POSIX capacity limits
General Limits.
POSIX optional features
System Options.
POSIX.1
POSIX.
POSIX.2
POSIX.
power functions
Exponents and Logarithms.
precision (of floating point number)
Floating Point Concepts.
precision (printf)
Output Conversion Syntax.
predicates on arrays
String/Array Comparison.
predicates on characters
Classification of Characters.
predicates on strings
String/Array Comparison.
preemptive scheduling
Absolute Priority.
primitives, interrupting
Interrupted Primitives.
printing character <1>
Classification of Wide Characters.
printing character
Classification of Characters.
priority of a process
Priority.
priority, absolute
Absolute Priority.
process <1>
Processes.
process
Program Basics.
process completion
Process Completion.
process group functions
Functions for Job Control.
process group ID
Launching Jobs.
process group leader
Launching Jobs.
process groups
Job Control.
process ID
Process Creation Concepts.
process image
Process Creation Concepts.
process lifetime
Process Creation Concepts.
process priority
Priority.
process signal mask
Process Signal Mask.
process termination
Program Termination.
processor time <1>
Processor Time.
processor time
Time Basics.
profiling alarm signal
Alarm Signals.
profiling timer
Setting an Alarm.
program
Program Basics.
program argument syntax
Argument Syntax.
program arguments
Program Arguments.
program arguments, parsing
Parsing Program Arguments.
program error signals
Program Error Signals.
program name
Error Messages.
program startup
Program Arguments.
program termination
Program Termination.
program termination signals
Termination Signals.
programming your own streams
Custom Streams.
project complex numbers
Operations on Complex.
protocol (of socket)
Socket Concepts.
protocol family
Socket Concepts.
protocols
NSS Basics.
protocols database
Protocols Database.
prototypes for variadic functions
Variadic Prototypes.
pseudo-random numbers
Pseudo-Random Numbers.
pseudo-terminals
Pseudo-Terminals.
punctuation character <1>
Classification of Wide Characters.
punctuation character
Classification of Characters.
pushing input back
Unreading.
quick sort function (for arrays)
Array Sort Function.
QUIT character
Signal Characters.
quit signal
Termination Signals.
quote removal
Expansion Stages.
race conditions, relating to job control
Launching Jobs.
race conditions, relating to signals
Signals in Handler.
radix (of floating point number)
Floating Point Concepts.
raising signals
Generating Signals.
random numbers
Pseudo-Random Numbers.
random-access files
File Position.
range error
Math Error Reporting.
range of integer type
Range of Type.
read lock
File Locks.
reading from a directory
Accessing Directories.
reading from a file descriptor
I/O Primitives.
reading from a socket
Transferring Data.
reading from a stream, by blocks
Block Input/Output.
reading from a stream, by characters
Character Input.
reading from a stream, formatted
Formatted Input.
ready to run
Absolute Priority.
real group ID
Process Persona.
real user ID
Process Persona.
real-time timer
Setting an Alarm.
realtime CPU scheduling
Absolute Priority.
realtime processing
Why Lock Pages.
realtime scheduling
Realtime Scheduling.
receiving datagrams
Receiving Datagrams.
record locking
File Locks.
redirecting input and output
Duplicating Descriptors.
reentrant functions
Nonreentrancy.
reentrant NSS functions
NSS Module Names.
relative file name
File Name Resolution.
removal of quotes
Expansion Stages.
removing a file
Deleting Files.
removing macros that shadow functions
Macro Definitions.
renaming a file
Renaming Files.
reporting bugs
Reporting Bugs.
reporting errors
Error Reporting.
REPRINT character
Editing Characters.
reserved names
Reserved Names.
resource limits
Limits on Resources.
restarting interrupted primitives
Interrupted Primitives.
restrictions on signal handler functions
Nonreentrancy.
root directory
File Name Resolution.
Rot13
Trivial Encryption.
rpc
NSS Basics.
runnable process
Absolute Priority.
running a command
Running a Command.
saved set-group-ID
How Change Persona.
saved set-user-ID
How Change Persona.
scanning the group list
Scanning All Groups.
scanning the user list
Scanning All Users.
scatter-gather
Scatter-Gather.
scheduling, traditional
Traditional Scheduling.
search function (for arrays)
Array Search Function.
search functions (for strings)
Search Functions.
seed (for random numbers)
Pseudo-Random Numbers.
seeking on a file descriptor
File Position Primitive.
seeking on a stream
File Positioning.
segmentation violation
Program Error Signals.
sending a datagram
Sending Datagrams.
sending signals
Generating Signals.
sequential-access files
File Position.
server
Connections.
services
NSS Basics.
services database
Services Database.
session <1>
Concepts of Job Control.
session
Job Control.
session leader
Concepts of Job Control.
setting an alarm
Setting an Alarm.
setuid programs
How Change Persona.
setuid programs and file access
Testing File Access.
severity class <1>
Adding Severity Classes.
severity class
Printing Formatted Messages.
sgettext
GUI program problems.
shadow
NSS Basics.
shadowing functions with macros
Macro Definitions.
shared lock
File Locks.
shared memory
Memory Subsystem.
shell
Concepts of Job Control.
shift state
Keeping the state.
Shift_JIS
Extended Char Intro.
shrinking objects
Growing Objects.
shutting down a socket
Closing a Socket.
sigaction flags
Flags for Sigaction.
sigaction function
Advanced Signal Handling.
SIGCHLD, handling of
Stopped and Terminated Jobs.
sign (of floating point number)
Floating Point Concepts.
signal <1>
Signal Handling.
signal
FP Exceptions.
signal action
Delivery of Signal.
signal actions
Signal Actions.
signal flags
Flags for Sigaction.
signal function
Basic Signal Handling.
signal handler function
Defining Handlers.
signal mask
Process Signal Mask.
signal messages
Signal Messages.
signal names
Standard Signals.
signal number
Standard Signals.
signal set
Signal Sets.
signals, generating
Generating Signals.
signedness
Integers.
significand (of floating point number)
Floating Point Concepts.
SIGTTIN, from background job
Access to the Terminal.
SIGTTOU, from background job
Access to the Terminal.
simple time
Calendar Time.
single-byte string
Representation of Strings.
size of string
Representation of Strings.
SJIS
Extended Char Intro.
socket
Sockets.
socket address (name) binding
Socket Addresses.
socket domain
Socket Concepts.
socket namespace
Socket Concepts.
socket option level
Socket Options.
socket options
Socket Options.
socket pair
Socket Pairs.
socket protocol
Socket Concepts.
socket shutdown
Closing a Socket.
socket, client actions
Connecting.
socket, closing
Closing a Socket.
socket, connecting
Connecting.
socket, creating
Creating a Socket.
socket, initiating a connection
Connecting.
sockets, accepting connections
Accepting Connections.
sockets, listening
Listening.
sockets, server actions
Listening.
soft limit
Limits on Resources.
soft link
Symbolic Links.
sort function (for arrays)
Array Sort Function.
sparse files
File Position Primitive.
special files
Making Special Files.
special functions
Special Functions.
specified action (for a signal)
Delivery of Signal.
speed of execution
Why Lock Pages.
square root function
Exponents and Logarithms.
stable sorting
Array Sort Function.
standard dot notation, for Internet addresses
Abstract Host Addresses.
standard environment variables
Standard Environment.
standard error file descriptor
Descriptors and Streams.
standard error stream
Standard Streams.
standard file descriptors
Descriptors and Streams.
standard input file descriptor
Descriptors and Streams.
standard input stream
Standard Streams.
standard output file descriptor
Descriptors and Streams.
standard output stream
Standard Streams.
standard streams
Standard Streams.
standards
Standards and Portability.
START character
Start/Stop Characters.
startup of program
Program Arguments.
stateful <1>
glibc iconv Implementation.
stateful <2>
iconv Examples.
stateful <3>
Generic Conversion Interface.
stateful <4>
Converting Strings.
stateful <5>
Converting a Character.
stateful
Keeping the state.
static memory allocation
Memory Allocation and C.
static storage class
Memory Allocation and C.
STATUS character
Other Special.
status codes
Error Reporting.
status of a file
Attribute Meanings.
status of obstack
Status of an Obstack.
sticky bit
Permission Bits.
STOP character
Start/Stop Characters.
stop signal
Job Control Signals.
stopped job
Concepts of Job Control.
stopped jobs, continuing
Continuing Stopped Jobs.
stopped jobs, detecting
Stopped and Terminated Jobs.
storage allocation
Memory.
stream (sockets)
Socket Concepts.
stream orientation <1>
Streams and I18N.
stream orientation
Opening Streams.
stream, for I/O to a string
String Streams.
streams and descriptors
Stream/Descriptor Precautions.
streams, and file descriptors
Descriptors and Streams.
streams, C++
Streams and I18N.
streams, standard
Standard Streams.
string
Representation of Strings.
string allocation
Representation of Strings.
string collation functions
Collation Functions.
string comparison functions
String/Array Comparison.
string concatenation functions
Copying and Concatenation.
string copy functions
Copying and Concatenation.
string length
Representation of Strings.
string literal
Representation of Strings.
string search functions
Search Functions.
string stream
String Streams.
string vectors, null-character separated
Argz and Envz Vectors.
string, representation of
Representation of Strings.
style of communication (of a socket)
Socket Concepts.
subshell
Initializing the Shell.
substitution of variables and commands
Expansion Stages.
successive signals
Merged Signals.
summer time
Broken-down Time.
SunOS
Berkeley Unix.
supplementary group IDs
Process Persona.
SUSP character
Signal Characters.
suspend character
Signal Characters.
SVID
SVID.
swap space
Memory Concepts.
symbolic link
Symbolic Links.
symbolic link, opening
Open-time Flags.
synchronizing <1>
Synchronizing AIO Operations.
synchronizing
Synchronizing I/O.
syntax error messages, in argp
Argp Helper Functions.
syntax, for program arguments
Argument Syntax.
syntax, for reading numbers
Parsing of Numbers.
sysconf <1>
Processor Resources.
sysconf
Query Memory Parameters.
system call
System Calls.
system call number
System Calls.
System V Unix
SVID.
TCP (Internet protocol)
Protocols Database.
template, for printf
Formatted Output.
template, for scanf
Formatted Input.
TERM environment variable
Standard Environment.
terminal flow control
Line Control.
terminal identification
Is It a Terminal.
terminal input queue
I/O Queues.
terminal input queue, clearing
Line Control.
terminal input signal
Job Control Signals.
terminal line control functions
Line Control.
terminal line speed
Line Speed.
terminal mode data types
Mode Data Types.
terminal mode functions
Mode Functions.
terminal modes, BSD
BSD Terminal Modes.
terminal output queue
I/O Queues.
terminal output queue, flushing
Line Control.
terminal output signal
Job Control Signals.
terminated jobs, detecting
Stopped and Terminated Jobs.
termination signal
Termination Signals.
testing access permission
Testing File Access.
testing exit status of child process
Process Completion.
text stream
Binary Streams.
thrashing
Memory Subsystem.
thread of control
Program Basics.
threads
Streams and Threads.
ticks, clock
Processor And CPU Time.
tilde expansion
Expansion Stages.
time
Time Basics.
TIME termios slot
Noncanonical Input.
time zone
TZ Variable.
time zone database
TZ Variable.
time, elapsed
Time Basics.
time, high precision
High Accuracy Clock.
timer, profiling
Setting an Alarm.
timer, real-time
Setting an Alarm.
timer, virtual
Setting an Alarm.
timers, setting
Setting an Alarm.
timespec
Elapsed Time.
timeval
Elapsed Time.
timing error in signal handling
Remembering a Signal.
TMPDIR environment variable
Temporary Files.
tokenizing strings
Finding Tokens in a String.
tools, for installing library
Tools for Compilation.
transmitting datagrams
Sending Datagrams.
tree, directory
Working with Directory Trees.
triangulation
glibc iconv Implementation.
trigonometric functions
Trig Functions.
type measurements, floating
Floating Type Macros.
type measurements, integer
Width of Type.
type modifier character (printf)
Output Conversion Syntax.
type modifier character (scanf)
Input Conversion Syntax.
typeahead buffer
I/O Queues.
TZ environment variable
Standard Environment.
UCS-2
Extended Char Intro.
UCS-4
Extended Char Intro.
ulps
Errors in Math Functions.
umask
Setting Permissions.
unbuffered stream
Buffering Concepts.
unconstrained memory allocation
Unconstrained Allocation.
undefining macros that shadow functions
Macro Definitions.
underflow exception
FP Exceptions.
Unicode
Extended Char Intro.
Unix, Berkeley
Berkeley Unix.
Unix, System V
SVID.
unlinking a file
Deleting Files.
unordered comparison
FP Comparison Functions.
unreading characters
Unreading.
upgrading from libc5
Linux.
upper-case character <1>
Classification of Wide Characters.
upper-case character
Classification of Characters.
urgent data signal
Asynchronous I/O Signals.
urgent socket condition
Out-of-Band Data.
usage limits
Limits on Resources.
usage messages, in argp
Argp Helper Functions.
user accounting database
User Accounting Database.
user database
User Database.
user ID
User and Group IDs.
user ID, determining
Who Logged In.
user name
User and Group IDs.
user signals
Miscellaneous Signals.
usual file name errors
File Name Errors.
UTF-16
Extended Char Intro.
UTF-7
Extended Char Intro.
UTF-8
Extended Char Intro.
va_copy
Copying and Concatenation.
variable number of arguments
Variadic Functions.
variable substitution
Expansion Stages.
variable-sized arrays
GNU C Variable-Size Arrays.
variadic function argument access
Receiving Arguments.
variadic function prototypes
Variadic Prototypes.
variadic functions
Variadic Functions.
variadic functions, calling
Calling Variadics.
virtual time alarm signal
Alarm Signals.
virtual timer
Setting an Alarm.
volatile declarations
Nonreentrancy.
waiting for a signal
Waiting for a Signal.
waiting for completion of child process
Process Completion.
waiting for input or output
Waiting for I/O.
WERASE character
Editing Characters.
whitespace character <1>
Classification of Wide Characters.
whitespace character
Classification of Characters.
wide character
Extended Char Intro.
wide character string
Representation of Strings.
width of integer type
Width of Type.
wildcard expansion
Expansion Stages.
wint_t
String/Array Conventions.
word expansion
Word Expansion.
working directory
Working Directory.
write lock
File Locks.
writing to a file descriptor
I/O Primitives.
writing to a socket
Transferring Data.
writing to a stream, by blocks
Block Input/Output.
writing to a stream, by characters
Simple Output.
writing to a stream, formatted
Formatted Output.
YP
Host Identification.
YP domain name
Host Identification.
zero divide
FP Exceptions.

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