Programming Perl, 4th Edition

Prototypes of Built-in Functions

For reference, Table 7-2 lists the actual prototypes of the overridable built-ins as of v5.14.

Table 7-2. Prototypes for built-in functions

Prototype	Keywords
()	and, break, continue, dump, endgrent, endhostent, endnetent, endprotoent, endpwent, endservent, fork, getgrent, gethostent, getlogin, getnetent, getppid, getprotoent, getpwent, getservent, or, setgrent, setpwent, time, times, wait, wantarray
(_)	abs, alarm, chr, chroot, cos, exp, fc, hex, int, lc, lcfirst, length, log, oct, ord, quotemeta, readlink, readpipe, ref, rmdir, sin, sqrt, uc, ucfirst
(;$)	caller, chdir, exit, getpgrp, gmtime, localtime, rand, reset, sleep, srand, umask,
(;*)	close, eof, getc, readline, select, tell, write
(;+)	pop, shift
(@)	chmod, chown, die, kill, reverse, unlink, utime, warn
(_;$)	mkdir
(;$$)	setpgrp
($)	getgrgid, getgrnam, gethostbyname, getnetbyname, getprotobyname, getprotobynumber, getpwnam, getpwuid, sethostent, setnetent, setprotoent, setservent
(*)	closedir, fileno, getpeername, getsockname, lstat, readdir, rewinddir, stat, telldir
(+)	each, keys, values
(\$)	lock
(\%)	dbmclose
(\[$@%*])	tied, untie
($;$)	bless, unpack
(*;$)	binmode
(*;$@)	open
(+;$$@)	splice
($$)	atan2, crypt, gethostbyaddr, getnetbyaddr, getpriority, getservbyname, getservbyport, link, msgget, rename, semop, symlink, truncate, waitpid
($@)	formline, join, pack, sprintf, syscall
(+@)	push, unshift
(*$)	bind, connect, flock, listen, opendir, seekdir, shutdown
(**)	accept, ...