Next: , Previous: Language Features, Up: Top


Appendix B Summary of Library Facilities

This appendix is a complete list of the facilities declared within the header files supplied with the GNU C library. Each entry also lists the standard or other source from which each facility is derived, and tells you where in the manual you can find more information about how to use it.

long int a64l (const char *string)
stdlib.h (XPG): Encode Binary Data.
void abort (void)
stdlib.h (ISO): Aborting a Program.
int abs (int number)
stdlib.h (ISO): Absolute Value.
int accept (int socket, struct sockaddr *addr, socklen_t *length_ptr)
sys/socket.h (BSD): Accepting Connections.
int access (const char *filename, int how)
unistd.h (POSIX.1): Testing File Access.
ACCOUNTING
utmp.h (SVID): Manipulating the Database.
double acos (double x)
math.h (ISO): Inverse Trig Functions.
float acosf (float x)
math.h (ISO): Inverse Trig Functions.
double acosh (double x)
math.h (ISO): Hyperbolic Functions.
float acoshf (float x)
math.h (ISO): Hyperbolic Functions.
long double acoshl (long double x)
math.h (ISO): Hyperbolic Functions.
long double acosl (long double x)
math.h (ISO): Inverse Trig Functions.
int addmntent (FILE *stream, const struct mntent *mnt)
mntent.h (BSD): mtab.
int adjtime (const struct timeval *delta, struct timeval *olddelta)
sys/time.h (BSD): High-Resolution Calendar.
int adjtimex (struct timex *timex)
sys/timex.h (GNU): High-Resolution Calendar.
AF_FILE
sys/socket.h (GNU): Address Formats.
AF_INET
sys/socket.h (BSD): Address Formats.
AF_INET6
sys/socket.h (IPv6 Basic API): Address Formats.
AF_LOCAL
sys/socket.h (POSIX): Address Formats.
AF_UNIX
sys/socket.h (BSD, Unix98): Address Formats.
AF_UNSPEC
sys/socket.h (BSD): Address Formats.
int aio_cancel (int fildes, struct aiocb *aiocbp)
aio.h (POSIX.1b): Cancel AIO Operations.
int aio_cancel64 (int fildes, struct aiocb64 *aiocbp)
aio.h (Unix98): Cancel AIO Operations.
int aio_error (const struct aiocb *aiocbp)
aio.h (POSIX.1b): Status of AIO Operations.
int aio_error64 (const struct aiocb64 *aiocbp)
aio.h (Unix98): Status of AIO Operations.
int aio_fsync (int op, struct aiocb *aiocbp)
aio.h (POSIX.1b): Synchronizing AIO Operations.
int aio_fsync64 (int op, struct aiocb64 *aiocbp)
aio.h (Unix98): Synchronizing AIO Operations.
void aio_init (const struct aioinit *init)
aio.h (GNU): Configuration of AIO.
int aio_read (struct aiocb *aiocbp)
aio.h (POSIX.1b): Asynchronous Reads/Writes.
int aio_read64 (struct aiocb *aiocbp)
aio.h (Unix98): Asynchronous Reads/Writes.
ssize_t aio_return (const struct aiocb *aiocbp)
aio.h (POSIX.1b): Status of AIO Operations.
int aio_return64 (const struct aiocb64 *aiocbp)
aio.h (Unix98): Status of AIO Operations.
int aio_suspend (const struct aiocb *const list[], int nent, const struct timespec *timeout)
aio.h (POSIX.1b): Synchronizing AIO Operations.
int aio_suspend64 (const struct aiocb64 *const list[], int nent, const struct timespec *timeout)
aio.h (Unix98): Synchronizing AIO Operations.
int aio_write (struct aiocb *aiocbp)
aio.h (POSIX.1b): Asynchronous Reads/Writes.
int aio_write64 (struct aiocb *aiocbp)
aio.h (Unix98): Asynchronous Reads/Writes.
unsigned int alarm (unsigned int seconds)
unistd.h (POSIX.1): Setting an Alarm.
void * alloca (size_t size);
stdlib.h (GNU, BSD): Variable Size Automatic.
int alphasort (const void *a, const void *b)
dirent.h (BSD/SVID): Scanning Directory Content.
int alphasort64 (const void *a, const void *b)
dirent.h (GNU): Scanning Directory Content.
tcflag_t ALTWERASE
termios.h (BSD): Local Modes.
int ARG_MAX
limits.h (POSIX.1): General Limits.
error_t argp_err_exit_status
argp.h (GNU): Argp Global Variables.
void argp_error (const struct argp_state *state, const char *fmt, ...)
argp.h (GNU): Argp Helper Functions.
int ARGP_ERR_UNKNOWN
argp.h (GNU): Argp Parser Functions.
void argp_failure (const struct argp_state *state, int status, int errnum, const char *fmt, ...)
argp.h (GNU): Argp Helper Functions.
void argp_help (const struct argp *argp, FILE *stream, unsigned flags, char *name)
argp.h (GNU): Argp Help.
ARGP_IN_ORDER
argp.h (GNU): Argp Flags.
ARGP_KEY_ARG
argp.h (GNU): Argp Special Keys.
ARGP_KEY_ARGS
argp.h (GNU): Argp Special Keys.
ARGP_KEY_END
argp.h (GNU): Argp Special Keys.
ARGP_KEY_ERROR
argp.h (GNU): Argp Special Keys.
ARGP_KEY_FINI
argp.h (GNU): Argp Special Keys.
ARGP_KEY_HELP_ARGS_DOC
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_HELP_DUP_ARGS_NOTE
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_HELP_EXTRA
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_HELP_HEADER
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_HELP_POST_DOC
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_HELP_PRE_DOC
argp.h (GNU): Argp Help Filter Keys.
ARGP_KEY_INIT
argp.h (GNU): Argp Special Keys.
ARGP_KEY_NO_ARGS
argp.h (GNU): Argp Special Keys.
ARGP_KEY_SUCCESS
argp.h (GNU): Argp Special Keys.
ARGP_LONG_ONLY
argp.h (GNU): Argp Flags.
ARGP_NO_ARGS
argp.h (GNU): Argp Flags.
ARGP_NO_ERRS
argp.h (GNU): Argp Flags.
ARGP_NO_EXIT
argp.h (GNU): Argp Flags.
ARGP_NO_HELP
argp.h (GNU): Argp Flags.
error_t argp_parse (const struct argp *argp, int argc, char **argv, unsigned flags, int *arg_index, void *input)
argp.h (GNU): Suboptions.
ARGP_PARSE_ARGV0
argp.h (GNU): Argp Flags.
const char * argp_program_bug_address
argp.h (GNU): Argp Global Variables.
const char * argp_program_version
argp.h (GNU): Argp Global Variables.
argp_program_version_hook
argp.h (GNU): Argp Global Variables.
ARGP_SILENT
argp.h (GNU): Argp Flags.
void argp_state_help (const struct argp_state *state, FILE *stream, unsigned flags)
argp.h (GNU): Argp Helper Functions.
void argp_usage (const struct argp_state *state)
argp.h (GNU): Argp Helper Functions.
error_t argz_add (char **argz, size_t *argz_len, const char *str)
argz.h (GNU): Argz Functions.
error_t argz_add_sep (char **argz, size_t *argz_len, const char *str, int delim)
argz.h (GNU): Argz Functions.
error_t argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len)
argz.h (GNU): Argz Functions.
size_t argz_count (const char *argz, size_t arg_len)
argz.h (GNU): Argz Functions.
error_t argz_create (char *const argv[], char **argz, size_t *argz_len)
argz.h (GNU): Argz Functions.
error_t argz_create_sep (const char *string, int sep, char **argz, size_t *argz_len)
argz.h (GNU): Argz Functions.
void argz_delete (char **argz, size_t *argz_len, char *entry)
argz.h (GNU): Argz Functions.
void argz_extract (char *argz, size_t argz_len, char **argv)
argz.h (GNU): Argz Functions.
error_t argz_insert (char **argz, size_t *argz_len, char *before, const char *entry)
argz.h (GNU): Argz Functions.
char * argz_next (char *argz, size_t argz_len, const char *entry)
argz.h (GNU): Argz Functions.
error_t argz_replace (char **argz, size_t *argz_len, const char *str, const char *with, unsigned *replace_count)
argz.h (GNU): Argz Functions.
void argz_stringify (char *argz, size_t len, int sep)
argz.h (GNU): Argz Functions.
char * asctime (const struct tm *brokentime)
time.h (ISO): Formatting Calendar Time.
char * asctime_r (const struct tm *brokentime, char *buffer)
time.h (POSIX.1c): Formatting Calendar Time.
double asin (double x)
math.h (ISO): Inverse Trig Functions.
float asinf (float x)
math.h (ISO): Inverse Trig Functions.
double asinh (double x)
math.h (ISO): Hyperbolic Functions.
float asinhf (float x)
math.h (ISO): Hyperbolic Functions.
long double asinhl (long double x)
math.h (ISO): Hyperbolic Functions.
long double asinl (long double x)
math.h (ISO): Inverse Trig Functions.
int asprintf (char **ptr, const char *template, ...)
stdio.h (GNU): Dynamic Output.
void assert (int expression)
assert.h (ISO): Consistency Checking.
void assert_perror (int errnum)
assert.h (GNU): Consistency Checking.
double atan (double x)
math.h (ISO): Inverse Trig Functions.
double atan2 (double y, double x)
math.h (ISO): Inverse Trig Functions.
float atan2f (float y, float x)
math.h (ISO): Inverse Trig Functions.
long double atan2l (long double y, long double x)
math.h (ISO): Inverse Trig Functions.
float atanf (float x)
math.h (ISO): Inverse Trig Functions.
double atanh (double x)
math.h (ISO): Hyperbolic Functions.
float atanhf (float x)
math.h (ISO): Hyperbolic Functions.
long double atanhl (long double x)
math.h (ISO): Hyperbolic Functions.
long double atanl (long double x)
math.h (ISO): Inverse Trig Functions.
int atexit (void (*function) (void))
stdlib.h (ISO): Cleanups on Exit.
double atof (const char *string)
stdlib.h (ISO): Parsing of Floats.
int atoi (const char *string)
stdlib.h (ISO): Parsing of Integers.
long int atol (const char *string)
stdlib.h (ISO): Parsing of Integers.
long long int atoll (const char *string)
stdlib.h (ISO): Parsing of Integers.
B0
termios.h (POSIX.1): Line Speed.
B110
termios.h (POSIX.1): Line Speed.
B115200
termios.h (GNU): Line Speed.
B1200
termios.h (POSIX.1): Line Speed.
B134
termios.h (POSIX.1): Line Speed.
B150
termios.h (POSIX.1): Line Speed.
B1800
termios.h (POSIX.1): Line Speed.
B19200
termios.h (POSIX.1): Line Speed.
B200
termios.h (POSIX.1): Line Speed.
B230400
termios.h (GNU): Line Speed.
B2400
termios.h (POSIX.1): Line Speed.
B300
termios.h (POSIX.1): Line Speed.
B38400
termios.h (POSIX.1): Line Speed.
B460800
termios.h (GNU): Line Speed.
B4800
termios.h (POSIX.1): Line Speed.
B50
termios.h (POSIX.1): Line Speed.
B57600
termios.h (GNU): Line Speed.
B600
termios.h (POSIX.1): Line Speed.
B75
termios.h (POSIX.1): Line Speed.
B9600
termios.h (POSIX.1): Line Speed.
int backtrace (void **buffer, int size)
execinfo.h (GNU): Backtraces.
char ** backtrace_symbols (void *const *buffer, int size)
execinfo.h (GNU): Backtraces.
void backtrace_symbols_fd (void *const *buffer, int size, int fd)
execinfo.h (GNU): Backtraces.
char * basename (char *path)
libgen.h (XPG): Finding Tokens in a String.
char * basename (const char *filename)
string.h (GNU): Finding Tokens in a String.
int BC_BASE_MAX
limits.h (POSIX.2): Utility Limits.
int BC_DIM_MAX
limits.h (POSIX.2): Utility Limits.
int bcmp (const void *a1, const void *a2, size_t size)
string.h (BSD): String/Array Comparison.
void bcopy (const void *from, void *to, size_t size)
string.h (BSD): Copying and Concatenation.
int BC_SCALE_MAX
limits.h (POSIX.2): Utility Limits.
int BC_STRING_MAX
limits.h (POSIX.2): Utility Limits.
int bind (int socket, struct sockaddr *addr, socklen_t length)
sys/socket.h (BSD): Setting Address.
char * bindtextdomain (const char *domainname, const char *dirname)
libintl.h (GNU): Locating gettext catalog.
char * bind_textdomain_codeset (const char *domainname, const char *codeset)
libintl.h (GNU): Charset conversion in gettext.
blkcnt64_t
sys/types.h (Unix98): Attribute Meanings.
blkcnt_t
sys/types.h (Unix98): Attribute Meanings.
BOOT_TIME
utmp.h (SVID): Manipulating the Database.
BOOT_TIME
utmpx.h (XPG4.2): XPG Functions.
int brk (void *addr)
unistd.h (BSD): Resizing the Data Segment.
tcflag_t BRKINT
termios.h (POSIX.1): Input Modes.
_BSD_SOURCE
(GNU): Feature Test Macros.
void * bsearch (const void *key, const void *array, size_t count, size_t size, comparison_fn_t compare)
stdlib.h (ISO): Array Search Function.
wint_t btowc (int c)
wchar.h (ISO): Converting a Character.
int BUFSIZ
stdio.h (ISO): Controlling Buffering.
void bzero (void *block, size_t size)
string.h (BSD): Copying and Concatenation.
double cabs (complex double z)
complex.h (ISO): Absolute Value.
float cabsf (complex float z)
complex.h (ISO): Absolute Value.
long double cabsl (complex long double z)
complex.h (ISO): Absolute Value.
complex double cacos (complex double z)
complex.h (ISO): Inverse Trig Functions.
complex float cacosf (complex float z)
complex.h (ISO): Inverse Trig Functions.
complex double cacosh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float cacoshf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double cacoshl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double cacosl (complex long double z)
complex.h (ISO): Inverse Trig Functions.
void * calloc (size_t count, size_t eltsize)
malloc.h, stdlib.h (ISO): Allocating Cleared Space.
char * canonicalize_file_name (const char *name)
stdlib.h (GNU): Symbolic Links.
double carg (complex double z)
complex.h (ISO): Operations on Complex.
float cargf (complex float z)
complex.h (ISO): Operations on Complex.
long double cargl (complex long double z)
complex.h (ISO): Operations on Complex.
complex double casin (complex double z)
complex.h (ISO): Inverse Trig Functions.
complex float casinf (complex float z)
complex.h (ISO): Inverse Trig Functions.
complex double casinh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float casinhf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double casinhl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double casinl (complex long double z)
complex.h (ISO): Inverse Trig Functions.
complex double catan (complex double z)
complex.h (ISO): Inverse Trig Functions.
complex float catanf (complex float z)
complex.h (ISO): Inverse Trig Functions.
complex double catanh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float catanhf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double catanhl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double catanl (complex long double z)
complex.h (ISO): Inverse Trig Functions.
nl_catd catopen (const char *cat_name, int flag)
nl_types.h (X/Open): The catgets Functions.
int cbc_crypt (char *key, char *blocks, unsigned len, unsigned mode, char *ivec)
rpc/des_crypt.h (SUNRPC): DES Encryption.
double cbrt (double x)
math.h (BSD): Exponents and Logarithms.
float cbrtf (float x)
math.h (BSD): Exponents and Logarithms.
long double cbrtl (long double x)
math.h (BSD): Exponents and Logarithms.
complex double ccos (complex double z)
complex.h (ISO): Trig Functions.
complex float ccosf (complex float z)
complex.h (ISO): Trig Functions.
complex double ccosh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float ccoshf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double ccoshl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double ccosl (complex long double z)
complex.h (ISO): Trig Functions.
cc_t
termios.h (POSIX.1): Mode Data Types.
tcflag_t CCTS_OFLOW
termios.h (BSD): Control Modes.
double ceil (double x)
math.h (ISO): Rounding Functions.
float ceilf (float x)
math.h (ISO): Rounding Functions.
long double ceill (long double x)
math.h (ISO): Rounding Functions.
complex double cexp (complex double z)
complex.h (ISO): Exponents and Logarithms.
complex float cexpf (complex float z)
complex.h (ISO): Exponents and Logarithms.
complex long double cexpl (complex long double z)
complex.h (ISO): Exponents and Logarithms.
speed_t cfgetispeed (const struct termios *termios-p)
termios.h (POSIX.1): Line Speed.
speed_t cfgetospeed (const struct termios *termios-p)
termios.h (POSIX.1): Line Speed.
void cfmakeraw (struct termios *termios-p)
termios.h (BSD): Noncanonical Input.
void cfree (void *ptr)
stdlib.h (Sun): Freeing after Malloc.
int cfsetispeed (struct termios *termios-p, speed_t speed)
termios.h (POSIX.1): Line Speed.
int cfsetospeed (struct termios *termios-p, speed_t speed)
termios.h (POSIX.1): Line Speed.
int cfsetspeed (struct termios *termios-p, speed_t speed)
termios.h (BSD): Line Speed.
CHAR_BIT
limits.h (ISO): Width of Type.
CHAR_MAX
limits.h (ISO): Range of Type.
CHAR_MIN
limits.h (ISO): Range of Type.
int chdir (const char *filename)
unistd.h (POSIX.1): Working Directory.
int CHILD_MAX
limits.h (POSIX.1): General Limits.
int chmod (const char *filename, mode_t mode)
sys/stat.h (POSIX.1): Setting Permissions.
int chown (const char *filename, uid_t owner, gid_t group)
unistd.h (POSIX.1): File Owner.
tcflag_t CIGNORE
termios.h (BSD): Control Modes.
double cimag (complex double z)
complex.h (ISO): Operations on Complex.
float cimagf (complex float z)
complex.h (ISO): Operations on Complex.
long double cimagl (complex long double z)
complex.h (ISO): Operations on Complex.
int clearenv (void)
stdlib.h (GNU): Environment Access.
void clearerr (FILE *stream)
stdio.h (ISO): Error Recovery.
void clearerr_unlocked (FILE *stream)
stdio.h (GNU): Error Recovery.
int CLK_TCK
time.h (POSIX.1): CPU Time.
tcflag_t CLOCAL
termios.h (POSIX.1): Control Modes.
clock_t clock (void)
time.h (ISO): CPU Time.
int CLOCKS_PER_SEC
time.h (ISO): CPU Time.
clock_t
time.h (ISO): CPU Time.
complex double clog (complex double z)
complex.h (ISO): Exponents and Logarithms.
complex double clog10 (complex double z)
complex.h (GNU): Exponents and Logarithms.
complex float clog10f (complex float z)
complex.h (GNU): Exponents and Logarithms.
complex long double clog10l (complex long double z)
complex.h (GNU): Exponents and Logarithms.
complex float clogf (complex float z)
complex.h (ISO): Exponents and Logarithms.
complex long double clogl (complex long double z)
complex.h (ISO): Exponents and Logarithms.
int close (int filedes)
unistd.h (POSIX.1): Opening and Closing Files.
int closedir (DIR *dirstream)
dirent.h (POSIX.1): Reading/Closing Directory.
void closelog (void)
syslog.h (BSD): closelog.
int COLL_WEIGHTS_MAX
limits.h (POSIX.2): Utility Limits.
size_t confstr (int parameter, char *buf, size_t len)
unistd.h (POSIX.2): String Parameters.
complex double conj (complex double z)
complex.h (ISO): Operations on Complex.
complex float conjf (complex float z)
complex.h (ISO): Operations on Complex.
complex long double conjl (complex long double z)
complex.h (ISO): Operations on Complex.
int connect (int socket, struct sockaddr *addr, socklen_t length)
sys/socket.h (BSD): Connecting.
cookie_close_function
stdio.h (GNU): Hook Functions.
cookie_io_functions_t
stdio.h (GNU): Streams and Cookies.
cookie_read_function
stdio.h (GNU): Hook Functions.
cookie_seek_function
stdio.h (GNU): Hook Functions.
cookie_write_function
stdio.h (GNU): Hook Functions.
double copysign (double x, double y)
math.h (ISO): FP Bit Twiddling.
float copysignf (float x, float y)
math.h (ISO): FP Bit Twiddling.
long double copysignl (long double x, long double y)
math.h (ISO): FP Bit Twiddling.
double cos (double x)
math.h (ISO): Trig Functions.
float cosf (float x)
math.h (ISO): Trig Functions.
double cosh (double x)
math.h (ISO): Hyperbolic Functions.
float coshf (float x)
math.h (ISO): Hyperbolic Functions.
long double coshl (long double x)
math.h (ISO): Hyperbolic Functions.
long double cosl (long double x)
math.h (ISO): Trig Functions.
complex double cpow (complex double base, complex double power)
complex.h (ISO): Exponents and Logarithms.
complex float cpowf (complex float base, complex float power)
complex.h (ISO): Exponents and Logarithms.
complex long double cpowl (complex long double base, complex long double power)
complex.h (ISO): Exponents and Logarithms.
complex double cproj (complex double z)
complex.h (ISO): Operations on Complex.
complex float cprojf (complex float z)
complex.h (ISO): Operations on Complex.
complex long double cprojl (complex long double z)
complex.h (ISO): Operations on Complex.
void CPU_CLR (int cpu, cpu_set_t *set)
sched.h (GNU): CPU Affinity.
int CPU_ISSET (int cpu, const cpu_set_t *set)
sched.h (GNU): CPU Affinity.
void CPU_SET (int cpu, cpu_set_t *set)
sched.h (GNU): CPU Affinity.
int CPU_SETSIZE
sched.h (GNU): CPU Affinity.
cpu_set_t
sched.h (GNU): CPU Affinity.
void CPU_ZERO (cpu_set_t *set)
sched.h (GNU): CPU Affinity.
tcflag_t CREAD
termios.h (POSIX.1): Control Modes.
double creal (complex double z)
complex.h (ISO): Operations on Complex.
float crealf (complex float z)
complex.h (ISO): Operations on Complex.
long double creall (complex long double z)
complex.h (ISO): Operations on Complex.
int creat (const char *filename, mode_t mode)
fcntl.h (POSIX.1): Opening and Closing Files.
int creat64 (const char *filename, mode_t mode)
fcntl.h (Unix98): Opening and Closing Files.
tcflag_t CRTS_IFLOW
termios.h (BSD): Control Modes.
char * crypt (const char *key, const char *salt)
crypt.h (BSD, SVID): crypt.
char * crypt_r (const char *key, const char *salt, struct crypt_data * data)
crypt.h (GNU): crypt.
tcflag_t CS5
termios.h (POSIX.1): Control Modes.
tcflag_t CS6
termios.h (POSIX.1): Control Modes.
tcflag_t CS7
termios.h (POSIX.1): Control Modes.
tcflag_t CS8
termios.h (POSIX.1): Control Modes.
complex double csin (complex double z)
complex.h (ISO): Trig Functions.
complex float csinf (complex float z)
complex.h (ISO): Trig Functions.
complex double csinh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float csinhf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double csinhl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double csinl (complex long double z)
complex.h (ISO): Trig Functions.
tcflag_t CSIZE
termios.h (POSIX.1): Control Modes.
_CS_LFS64_CFLAGS
unistd.h (Unix98): String Parameters.
_CS_LFS64_LDFLAGS
unistd.h (Unix98): String Parameters.
_CS_LFS64_LIBS
unistd.h (Unix98): String Parameters.
_CS_LFS64_LINTFLAGS
unistd.h (Unix98): String Parameters.
_CS_LFS_CFLAGS
unistd.h (Unix98): String Parameters.
_CS_LFS_LDFLAGS
unistd.h (Unix98): String Parameters.
_CS_LFS_LIBS
unistd.h (Unix98): String Parameters.
_CS_LFS_LINTFLAGS
unistd.h (Unix98): String Parameters.
_CS_PATH
unistd.h (POSIX.2): String Parameters.
complex double csqrt (complex double z)
complex.h (ISO): Exponents and Logarithms.
complex float csqrtf (complex float z)
complex.h (ISO): Exponents and Logarithms.
complex long double csqrtl (complex long double z)
complex.h (ISO): Exponents and Logarithms.
tcflag_t CSTOPB
termios.h (POSIX.1): Control Modes.
complex double ctan (complex double z)
complex.h (ISO): Trig Functions.
complex float ctanf (complex float z)
complex.h (ISO): Trig Functions.
complex double ctanh (complex double z)
complex.h (ISO): Hyperbolic Functions.
complex float ctanhf (complex float z)
complex.h (ISO): Hyperbolic Functions.
complex long double ctanhl (complex long double z)
complex.h (ISO): Hyperbolic Functions.
complex long double ctanl (complex long double z)
complex.h (ISO): Trig Functions.
char * ctermid (char *string)
stdio.h (POSIX.1): Identifying the Terminal.
char * ctime (const time_t *time)
time.h (ISO): Formatting Calendar Time.
char * ctime_r (const time_t *time, char *buffer)
time.h (POSIX.1c): Formatting Calendar Time.
char * cuserid (char *string)
stdio.h (POSIX.1): Who Logged In.
int daylight
time.h (SVID): Time Zone Functions.
DBL_DIG
float.h (ISO): Floating Point Parameters.
DBL_EPSILON
float.h (ISO): Floating Point Parameters.
DBL_MANT_DIG
float.h (ISO): Floating Point Parameters.
DBL_MAX
float.h (ISO): Floating Point Parameters.
DBL_MAX_10_EXP
float.h (ISO): Floating Point Parameters.
DBL_MAX_EXP
float.h (ISO): Floating Point Parameters.
DBL_MIN
float.h (ISO): Floating Point Parameters.
DBL_MIN_10_EXP
float.h (ISO): Floating Point Parameters.
DBL_MIN_EXP
float.h (ISO): Floating Point Parameters.
char * dcgettext (const char *domainname, const char *msgid, int category)
libintl.h (GNU): Translation with gettext.
char * dcngettext (const char *domain, const char *msgid1, const char *msgid2, unsigned long int n, int category)
libintl.h (GNU): Advanced gettext functions.
DEAD_PROCESS
utmp.h (SVID): Manipulating the Database.
DEAD_PROCESS
utmpx.h (XPG4.2): XPG Functions.
DES_DECRYPT
rpc/des_crypt.h (SUNRPC): DES Encryption.
DES_ENCRYPT
rpc/des_crypt.h (SUNRPC): DES Encryption.
DESERR_BADPARAM
rpc/des_crypt.h (SUNRPC): DES Encryption.
DESERR_HWERROR
rpc/des_crypt.h (SUNRPC): DES Encryption.
DESERR_NOHWDEVICE
rpc/des_crypt.h (SUNRPC): DES Encryption.
DESERR_NONE
rpc/des_crypt.h (SUNRPC): DES Encryption.
int DES_FAILED (int err)
rpc/des_crypt.h (SUNRPC): DES Encryption.
DES_HW
rpc/des_crypt.h (SUNRPC): DES Encryption.
void des_setparity (char *key)
rpc/des_crypt.h (SUNRPC): DES Encryption.
DES_SW
rpc/des_crypt.h (SUNRPC): DES Encryption.
dev_t
sys/types.h (POSIX.1): Attribute Meanings.
char * dgettext (const char *domainname, const char *msgid)
libintl.h (GNU): Translation with gettext.
double difftime (time_t time1, time_t time0)
time.h (ISO): Elapsed Time.
DIR
dirent.h (POSIX.1): Opening a Directory.
int dirfd (DIR *dirstream)
dirent.h (GNU): Opening a Directory.
char * dirname (char *path)
libgen.h (XPG): Finding Tokens in a String.
div_t div (int numerator, int denominator)
stdlib.h (ISO): Integer Division.
div_t
stdlib.h (ISO): Integer Division.
char * dngettext (const char *domain, const char *msgid1, const char *msgid2, unsigned long int n)
libintl.h (GNU): Advanced gettext functions.
double drand48 (void)
stdlib.h (SVID): SVID Random.
int drand48_r (struct drand48_data *buffer, double *result)
stdlib.h (GNU): SVID Random.
double drem (double numerator, double denominator)
math.h (BSD): Remainder Functions.
float dremf (float numerator, float denominator)
math.h (BSD): Remainder Functions.
long double dreml (long double numerator, long double denominator)
math.h (BSD): Remainder Functions.
mode_t DTTOIF (int dtype)
dirent.h (BSD): Directory Entries.
int dup (int old)
unistd.h (POSIX.1): Duplicating Descriptors.
int dup2 (int old, int new)
unistd.h (POSIX.1): Duplicating Descriptors.
int E2BIG
errno.h (POSIX.1: Argument list too long): Error Codes.
int EACCES
errno.h (POSIX.1: Permission denied): Error Codes.
int EADDRINUSE
errno.h (BSD: Address already in use): Error Codes.
int EADDRNOTAVAIL
errno.h (BSD: Cannot assign requested address): Error Codes.
int EADV
errno.h (Linux???: Advertise error): Error Codes.
int EAFNOSUPPORT
errno.h (BSD: Address family not supported by protocol): Error Codes.
int EAGAIN
errno.h (POSIX.1: Resource temporarily unavailable): Error Codes.
int EALREADY
errno.h (BSD: Operation already in progress): Error Codes.
int EAUTH
errno.h (BSD: Authentication error): Error Codes.
int EBACKGROUND
errno.h (GNU: Inappropriate operation for background process): Error Codes.
int EBADE
errno.h (Linux???: Invalid exchange): Error Codes.
int EBADF
errno.h (POSIX.1: Bad file descriptor): Error Codes.
int EBADFD
errno.h (Linux???: File descriptor in bad state): Error Codes.
int EBADMSG
errno.h (XOPEN: Bad message): Error Codes.
int EBADR
errno.h (Linux???: Invalid request descriptor): Error Codes.
int EBADRPC
errno.h (BSD: RPC struct is bad): Error Codes.
int EBADRQC
errno.h (Linux???: Invalid request code): Error Codes.
int EBADSLT
errno.h (Linux???: Invalid slot): Error Codes.
int EBFONT
errno.h (Linux???: Bad font file format): Error Codes.
int EBUSY
errno.h (POSIX.1: Device or resource busy): Error Codes.
int ECANCELED
errno.h (POSIX.1: Operation canceled): Error Codes.
int ecb_crypt (char *key, char *blocks, unsigned len, unsigned mode)
rpc/des_crypt.h (SUNRPC): DES Encryption.
int ECHILD
errno.h (POSIX.1: No child processes): Error Codes.
tcflag_t ECHO
termios.h (POSIX.1): Local Modes.
tcflag_t ECHOCTL
termios.h (BSD): Local Modes.
tcflag_t ECHOE
termios.h (POSIX.1): Local Modes.
tcflag_t ECHOK
termios.h (POSIX.1): Local Modes.
tcflag_t ECHOKE
termios.h (BSD): Local Modes.
tcflag_t ECHONL
termios.h (POSIX.1): Local Modes.
tcflag_t ECHOPRT
termios.h (BSD): Local Modes.
int ECHRNG
errno.h (Linux???: Channel number out of range): Error Codes.
int ECOMM
errno.h (Linux???: Communication error on send): Error Codes.
int ECONNABORTED
errno.h (BSD: Software caused connection abort): Error Codes.
int ECONNREFUSED
errno.h (BSD: Connection refused): Error Codes.
int ECONNRESET
errno.h (BSD: Connection reset by peer): Error Codes.
char * ecvt (double value, int ndigit, int *decpt, int *neg)
stdlib.h (SVID, Unix98): System V Number Conversion.
int ecvt_r (double value, int ndigit, int *decpt, int *neg, char *buf, size_t len)
stdlib.h (GNU): System V Number Conversion.
int ED
errno.h (GNU: ?): Error Codes.
int EDEADLK
errno.h (POSIX.1: Resource deadlock avoided): Error Codes.
int EDEADLOCK
errno.h (Linux???: File locking deadlock error): Error Codes.
int EDESTADDRREQ
errno.h (BSD: Destination address required): Error Codes.
int EDIED
errno.h (GNU: Translator died): Error Codes.
int EDOM
errno.h (ISO: Numerical argument out of domain): Error Codes.
int EDOTDOT
errno.h (Linux???: RFS specific error): Error Codes.
int EDQUOT
errno.h (BSD: Disk quota exceeded): Error Codes.
int EEXIST
errno.h (POSIX.1: File exists): Error Codes.
int EFAULT
errno.h (POSIX.1: Bad address): Error Codes.
int EFBIG
errno.h (POSIX.1: File too large): Error Codes.
int EFTYPE
errno.h (BSD: Inappropriate file type or format): Error Codes.
int EGRATUITOUS
errno.h (GNU: Gratuitous error): Error Codes.
int EGREGIOUS
errno.h (GNU: You really blew it this time): Error Codes.
int EHOSTDOWN
errno.h (BSD: Host is down): Error Codes.
int EHOSTUNREACH
errno.h (BSD: No route to host): Error Codes.
int EIDRM
errno.h (XOPEN: Identifier removed): Error Codes.
int EIEIO
errno.h (GNU: Computer bought the farm): Error Codes.
int EILSEQ
errno.h (ISO: Invalid or incomplete multibyte or wide character): Error Codes.
int EINPROGRESS
errno.h (BSD: Operation now in progress): Error Codes.
int EINTR
errno.h (POSIX.1: Interrupted system call): Error Codes.
int EINVAL
errno.h (POSIX.1: Invalid argument): Error Codes.
int EIO
errno.h (POSIX.1: Input/output error): Error Codes.
int EISCONN
errno.h (BSD: Transport endpoint is already connected): Error Codes.
int EISDIR
errno.h (POSIX.1: Is a directory): Error Codes.
int EISNAM
errno.h (Linux???: Is a named type file): Error Codes.
int EKEYEXPIRED
errno.h (Linux: Key has expired): Error Codes.
int EKEYREJECTED
errno.h (Linux: Key was rejected by service): Error Codes.
int EKEYREVOKED
errno.h (Linux: Key has been revoked): Error Codes.
int EL2HLT
errno.h (Obsolete: Level 2 halted): Error Codes.
int EL2NSYNC
errno.h (Obsolete: Level 2 not synchronized): Error Codes.
int EL3HLT
errno.h (Obsolete: Level 3 halted): Error Codes.
int EL3RST
errno.h (Obsolete: Level 3 reset): Error Codes.
int ELIBACC
errno.h (Linux???: Can not access a needed shared library): Error Codes.
int ELIBBAD
errno.h (Linux???: Accessing a corrupted shared library): Error Codes.
int ELIBEXEC
errno.h (Linux???: Cannot exec a shared library directly): Error Codes.
int ELIBMAX
errno.h (Linux???: Attempting to link in too many shared libraries): Error Codes.
int ELIBSCN
errno.h (Linux???: .lib section in a.out corrupted): Error Codes.
int ELNRNG
errno.h (Linux???: Link number out of range): Error Codes.
int ELOOP
errno.h (BSD: Too many levels of symbolic links): Error Codes.
int EMEDIUMTYPE
errno.h (Linux???: Wrong medium type): Error Codes.
int EMFILE
errno.h (POSIX.1: Too many open files): Error Codes.
int EMLINK
errno.h (POSIX.1: Too many links): Error Codes.
EMPTY
utmp.h (SVID): Manipulating the Database.
EMPTY
utmpx.h (XPG4.2): XPG Functions.
int EMSGSIZE
errno.h (BSD: Message too long): Error Codes.
int EMULTIHOP
errno.h (XOPEN: Multihop attempted): Error Codes.
int ENAMETOOLONG
errno.h (POSIX.1: File name too long): Error Codes.
int ENAVAIL
errno.h (Linux???: No XENIX semaphores available): Error Codes.
void encrypt (char *block, int edflag)
crypt.h (BSD, SVID): DES Encryption.
void encrypt_r (char *block, int edflag, struct crypt_data * data)
crypt.h (GNU): DES Encryption.
void endfsent (void)
fstab.h (BSD): fstab.
void endgrent (void)
grp.h (SVID, BSD): Scanning All Groups.
void endhostent (void)
netdb.h (BSD): Host Names.
int endmntent (FILE *stream)
mntent.h (BSD): mtab.
void endnetent (void)
netdb.h (BSD): Networks Database.
void endnetgrent (void)
netdb.h (BSD): Lookup Netgroup.
void endprotoent (void)
netdb.h (BSD): Protocols Database.
void endpwent (void)
pwd.h (SVID, BSD): Scanning All Users.
void endservent (void)
netdb.h (BSD): Services Database.
void endutent (void)
utmp.h (SVID): Manipulating the Database.
void endutxent (void)
utmpx.h (XPG4.2): XPG Functions.
int ENEEDAUTH
errno.h (BSD: Need authenticator): Error Codes.
int ENETDOWN
errno.h (BSD: Network is down): Error Codes.
int ENETRESET
errno.h (BSD: Network dropped connection on reset): Error Codes.
int ENETUNREACH
errno.h (BSD: Network is unreachable): Error Codes.
int ENFILE
errno.h (POSIX.1: Too many open files in system): Error Codes.
int ENOANO
errno.h (Linux???: No anode): Error Codes.
int ENOBUFS
errno.h (BSD: No buffer space available): Error Codes.
int ENOCSI
errno.h (Linux???: No CSI structure available): Error Codes.
int ENODATA
errno.h (XOPEN: No data available): Error Codes.
int ENODEV
errno.h (POSIX.1: No such device): Error Codes.
int ENOENT
errno.h (POSIX.1: No such file or directory): Error Codes.
int ENOEXEC
errno.h (POSIX.1: Exec format error): Error Codes.
int ENOKEY
errno.h (Linux: Required key not available): Error Codes.
int ENOLCK
errno.h (POSIX.1: No locks available): Error Codes.
int ENOLINK
errno.h (XOPEN: Link has been severed): Error Codes.
int ENOMEDIUM
errno.h (Linux???: No medium found): Error Codes.
int ENOMEM
errno.h (POSIX.1: Cannot allocate memory): Error Codes.
int ENOMSG
errno.h (XOPEN: No message of desired type): Error Codes.
int ENONET
errno.h (Linux???: Machine is not on the network): Error Codes.
int ENOPKG
errno.h (Linux???: Package not installed): Error Codes.
int ENOPROTOOPT
errno.h (BSD: Protocol not available): Error Codes.
int ENOSPC
errno.h (POSIX.1: No space left on device): Error Codes.
int ENOSR
errno.h (XOPEN: Out of streams resources): Error Codes.
int ENOSTR
errno.h (XOPEN: Device not a stream): Error Codes.
int ENOSYS
errno.h (POSIX.1: Function not implemented): Error Codes.
int ENOTBLK
errno.h (BSD: Block device required): Error Codes.
int ENOTCONN
errno.h (BSD: Transport endpoint is not connected): Error Codes.
int ENOTDIR
errno.h (POSIX.1: Not a directory): Error Codes.
int ENOTEMPTY
errno.h (POSIX.1: Directory not empty): Error Codes.
int ENOTNAM
errno.h (Linux???: Not a XENIX named type file): Error Codes.
int ENOTRECOVERABLE
errno.h (Linux: State not recoverable): Error Codes.
int ENOTSOCK
errno.h (BSD: Socket operation on non-socket): Error Codes.
int ENOTSUP
errno.h (POSIX.1: Not supported): Error Codes.
int ENOTTY
errno.h (POSIX.1: Inappropriate ioctl for device): Error Codes.
int ENOTUNIQ
errno.h (Linux???: Name not unique on network): Error Codes.
char ** environ
unistd.h (POSIX.1): Environment Access.
error_t envz_add (char **envz, size_t *envz_len, const char *name, const char *value)
envz.h (GNU): Envz Functions.
char * envz_entry (const char *envz, size_t envz_len, const char *name)
envz.h (GNU): Envz Functions.
char * envz_get (const char *envz, size_t envz_len, const char *name)
envz.h (GNU): Envz Functions.
error_t envz_merge (char **envz, size_t *envz_len, const char *envz2, size_t envz2_len, int override)
envz.h (GNU): Envz Functions.
void envz_strip (char **envz, size_t *envz_len)
envz.h (GNU): Envz Functions.
int ENXIO
errno.h (POSIX.1: No such device or address): Error Codes.
int EOF
stdio.h (ISO): EOF and Errors.
int EOPNOTSUPP
errno.h (BSD: Operation not supported): Error Codes.
int EOVERFLOW
errno.h (XOPEN: Value too large for defined data type): Error Codes.
int EOWNERDEAD
errno.h (Linux: Owner died): Error Codes.
int EPERM
errno.h (POSIX.1: Operation not permitted): Error Codes.
int EPFNOSUPPORT
errno.h (BSD: Protocol family not supported): Error Codes.
int EPIPE
errno.h (POSIX.1: Broken pipe): Error Codes.
int EPROCLIM
errno.h (BSD: Too many processes): Error Codes.
int EPROCUNAVAIL
errno.h (BSD: RPC bad procedure for program): Error Codes.
int EPROGMISMATCH
errno.h (BSD: RPC program version wrong): Error Codes.
int EPROGUNAVAIL
errno.h (BSD: RPC program not available): Error Codes.
int EPROTO
errno.h (XOPEN: Protocol error): Error Codes.
int EPROTONOSUPPORT
errno.h (BSD: Protocol not supported): Error Codes.
int EPROTOTYPE
errno.h (BSD: Protocol wrong type for socket): Error Codes.
int EQUIV_CLASS_MAX
limits.h (POSIX.2): Utility Limits.
double erand48 (unsigned short int xsubi[3])
stdlib.h (SVID): SVID Random.
int erand48_r (unsigned short int xsubi[3], struct drand48_data *buffer, double *result)
stdlib.h (GNU): SVID Random.
int ERANGE
errno.h (ISO: Numerical result out of range): Error Codes.
int EREMCHG
errno.h (Linux???: Remote address changed): Error Codes.
int EREMOTE
errno.h (BSD: Object is remote): Error Codes.
int EREMOTEIO
errno.h (Linux???: Remote I/O error): Error Codes.
int ERESTART
errno.h (Linux???: Interrupted system call should be restarted): Error Codes.
double erf (double x)
math.h (SVID): Special Functions.
double erfc (double x)
math.h (SVID): Special Functions.
float erfcf (float x)
math.h (SVID): Special Functions.
long double erfcl (long double x)
math.h (SVID): Special Functions.
float erff (float x)
math.h (SVID): Special Functions.
long double erfl (long double x)
math.h (SVID): Special Functions.
int EROFS
errno.h (POSIX.1: Read-only file system): Error Codes.
int ERPCMISMATCH
errno.h (BSD: RPC version wrong): Error Codes.
void err (int status, const char *format, ...)
err.h (BSD): Error Messages.
volatile int errno
errno.h (ISO): Checking for Errors.
void error (int status, int errnum, const char *format, ...)
error.h (GNU): Error Messages.
void error_at_line (int status, int errnum, const char *fname, unsigned int lineno, const char *format, ...)
error.h (GNU): Error Messages.
unsigned int error_message_count
error.h (GNU): Error Messages.
int error_one_per_line
error.h (GNU): Error Messages.
void errx (int status, const char *format, ...)
err.h (BSD): Error Messages.
int ESHUTDOWN
errno.h (BSD: Cannot send after transport endpoint shutdown): Error Codes.
int ESOCKTNOSUPPORT
errno.h (BSD: Socket type not supported): Error Codes.
int ESPIPE
errno.h (POSIX.1: Illegal seek): Error Codes.
int ESRCH
errno.h (POSIX.1: No such process): Error Codes.
int ESRMNT
errno.h (Linux???: Srmount error): Error Codes.
int ESTALE
errno.h (BSD: Stale NFS file handle): Error Codes.
int ESTRPIPE
errno.h (Linux???: Streams pipe error): Error Codes.
int ETIME
errno.h (XOPEN: Timer expired): Error Codes.
int ETIMEDOUT
errno.h (BSD: Connection timed out): Error Codes.
int ETOOMANYREFS
errno.h (BSD: Too many references: cannot splice): Error Codes.
int ETXTBSY
errno.h (BSD: Text file busy): Error Codes.
int EUCLEAN
errno.h (Linux???: Structure needs cleaning): Error Codes.
int EUNATCH
errno.h (Linux???: Protocol driver not attached): Error Codes.
int EUSERS
errno.h (BSD: Too many users): Error Codes.
int EWOULDBLOCK
errno.h (BSD: Operation would block): Error Codes.
int EXDEV
errno.h (POSIX.1: Invalid cross-device link): Error Codes.
int execl (const char *filename, const char *arg0, ...)
unistd.h (POSIX.1): Executing a File.
int execle (const char *filename, const char *arg0, char *const env[], ...)
unistd.h (POSIX.1): Executing a File.
int execlp (const char *filename, const char *arg0, ...)
unistd.h (POSIX.1): Executing a File.
int execv (const char *filename, char *const argv[])
unistd.h (POSIX.1): Executing a File.
int execve (const char *filename, char *const argv[], char *const env[])
unistd.h (POSIX.1): Executing a File.
int execvp (const char *filename, char *const argv[])
unistd.h (POSIX.1): Executing a File.
int EXFULL
errno.h (Linux???: Exchange full): Error Codes.
void exit (int status)
stdlib.h (ISO): Normal Termination.