.xx "intro" "introduction to C library functions"
.xx "abort" "generate a fault"
.xx "abs" "integer absolute value"
.xx "alarm" "schedule signal after specified time"
.xx "asinh" "inverse hyperbolic functions"
.xx "assert" "program verification"
.xx "atof" "convert ASCII to numbers"
.xx "bstring" "bit and byte string operations"
.xx "byteorder" "convert values between host and network byte order"
.xx "crypt" "DES encryption"
.xx "ctime" "convert date and time to ASCII"
.xx "ctype" "character classification macros"
.xx "curses" "screen functions with ``optimal'' cursor motion"
.xx "dbm" "data base subroutines"
.xx "directory" "directory operations"
.xx "ecvt" "output conversion"
.xx "end" "last locations in program"
.xx "erf" "error functions"
.xx "execl" "execute a file"
.xx "exit" "terminate a process after flushing any pending output"
.xx "exp" "exponential, logarithm, power"
.xx "fclose" "close or flush a stream"
.xx "ferror" "stream status inquiries"
.xx "floor" "absolute value, floor, ceiling, and round-to-nearest functions"
.xx "fopen" "open a stream"
.xx "fread" "buffered binary input/output"
.xx "frexp" "split into mantissa and exponent"
.xx "fseek" "reposition a stream"
.xx "getc" "get character or word from stream"
.xx "getdisk" "get disk description by its name"
.xx "getenv" "value for environment name"
.xx "getfsent" "get file system descriptor file entry"
.xx "getgrent" "get group file entry"
.xx "gethostbyname" "get network host entry"
.xx "getlogin" "get login name"
.xx "getnetent" "get network entry"
.xx "getopt" "get option letter from argv"
.xx "getpass" "read a password"
.xx "getprotoent" "get protocol entry"
.xx "getpw" "get name from uid"
.xx "getpwent" "get password file entry"
.xx "gets" "get a string from a stream"
.xx "getservent" "get service entry"
.xx "getttyent" "get ttys file entry"
.xx "getusershell" "get legal user shells"
.xx "getwd" "get current working directory pathname"
.xx "hypot" "Euclidean distance, complex absolute value"
.xx "ieee" "copysign, remainder, exponent manipulations"
.xx "inet" "Internet address manipulation routines"
.xx "infnan" "signals invalid floating-point operations on a VAX (temporary)"
.xx "initgroups" "initialize group access list"
.xx "insque" "insert/remove element from a queue"
.xx "j0" "bessel functions"
.xx "lgamma" "log gamma function"
.xx "lib2648" "subroutines for the HP 2648 graphics terminal"
.xx "malloc" "memory allocator"
.xx "math" "introduction to mathematical library functions"
.xx "mktemp" "make a unique file name"
.xx "monitor" "prepare execution profile"
.xx "mp" "multiple precision integer arithmetic"
.xx "ndbm" "data base subroutines"
.xx "nice" "set program priority"
.xx "nlist" "get entries from name list"
.xx "ns" "Xerox NS(tm)  address conversion routines"
.xx "pause" "stop until signal"
.xx "perror" "system error messages"
.xx "plot" "graphics interface"
.xx "popen" "initiate I/O to/from a process"
.xx "printf" "formatted output conversion"
.xx "psignal" "system signal messages"
.xx "putc" "put character or word on a stream"
.xx "puts" "put a string on a stream"
.xx "qsort" "quicker sort"
.xx "rand" "random number generator"
.xx "random" "better random number generator; routines for changing generators"
.xx "rcmd" "routines for returning a stream to a remote command"
.xx "regex" "regular expression handler"
.xx "resolver" "resolver routines"
.xx "rexec" "return stream to a remote command"
.xx "scandir" "scan a directory"
.xx "scanf" "formatted input conversion"
.xx "setbuf" "assign buffering to a stream"
.xx "setjmp" "non-local goto"
.xx "setuid" "set user and group ID"
.xx "siginterrupt" "allow signals to interrupt system calls"
.xx "signal" "simplified software signal facilities"
.xx "sin" "trigonometric functions and their inverses"
.xx "sinh" "hyperbolic functions"
.xx "sleep" "suspend execution for interval"
.xx "sqrt" "cube root, square root"
.xx "stdio" "standard buffered input/output package"
.xx "string" "string operations"
.xx "stty" "set and get terminal state (defunct)"
.xx "swab" "swap bytes"
.xx "syslog" "control system log"
.xx "system" "issue a shell command"
.xx "termcap" "terminal independent operation routines"
.xx "time" "get date and time"
.xx "times" "get process times"
.xx "ttyname" "find name of a terminal"
.xx "ualarm" "schedule signal after specified time"
.xx "ungetc" "push character back into input stream"
.xx "usleep" "suspend execution for interval"
.xx "utime" "set file times"
.xx "valloc" "aligned memory allocator"
.xx "varargs" "variable argument list"
.xx "vlimit" "control maximum system resource consumption"
.xx "vtimes" "get information about resource utilization"
