.xx "intro" "introduction to library functions"
.xx "abort" "generate a fault"
.xx "abs" "integer absolute value"
.xx "assert" "program verification"
.xx "atof" "convert ASCII to numbers"
.xx "crypt" "DES encryption"
.xx "ctime" "convert date and time to ASCII"
.xx "ctype" "character classification"
.xx "curses" "screen functions with ``optimal'' cursor motion"
.xx "dbm" "data base subroutines"
.xx "directory" "flexible length directory operations"
.xx "end" "last locations in program"
.xx "epdtoadr" "convert external procedure descriptor to absolute address"
.xx "exp" "exponential, logarithm, power, square root"
.xx "fclose" "close or flush a stream"
.xx "ferror" "stream status inquiries"
.xx "floor" "absolute value, floor, ceiling 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 "gamma" "log gamma function"
.xx "getc" "get character or word from stream"
.xx "getenv" "value for environment name"
.xx "getfsent" "get file system descriptor file entry"
.xx "getgrent" "get group file entry"
.xx "getlogin" "get login name"
.xx "getpass" "read a password"
.xx "getpw" "get name from uid"
.xx "getpwent" "get password file entry"
.xx "gets" "get a string from a stream"
.xx "hypot" "Euclidean distance"
.xx "j0" "bessel functions"
.xx "jobs" "summary of job control facilities"
.xx "l3tol" "convert between 3-byte integers and long integers"
.xx "malloc" "main memory allocator"
.xx "mktemp" "make a unique file name"
.xx "monitor" "prepare execution profile"
.xx "nlist" "get entries from name list"
.xx "openp" "open file using search path"
.xx "perror" "system error messages"
.xx "plot" "graphics interface"
.xx "popen" "initiate I/O to/from a process"
.xx "printf" "formatted output conversion"
.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 "regex" "regular expression handler"
.xx "scandir" "scan a directory"
.xx "scanf" "formatted input conversion"
.xx "setbuf" "assign buffering to a stream"
.xx "setjmp" "non-local goto"
.xx "sigset" "manage signals"
.xx "sin" "trigonometric functions"
.xx "sinh" "hyperbolic functions"
.xx "sleep" "suspend execution for interval"
.xx "stdio" "standard buffered input/output package"
.xx "string" "string operations"
.xx "swab" "swap bytes"
.xx "system" "issue a shell command"
.xx "termcap" "terminal independent operation routines"
.xx "ttyname" "find name of a terminal"
.xx "ungetc" "push character back into input stream"
.xx "valloc" "aligned memory allocator"
.xx "varargs" "variable argument list"
.xx "walkdir" "recursively find files in a directory hierarchy"
