Errno
Section: Perl Programmers Reference Guide (3)
Updated: perl 5.005, patch 02
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NAME
Errno - System errno constants
SYNOPSIS
use Errno qw(EINTR EIO :POSIX);
DESCRIPTION
Errno defines and conditionally exports all the error constants
defined in your system errno.h include file. It has a single export
tag, :POSIX, which will export all POSIX defined error numbers.
Errno also makes %! magic such that each element of %! has a non-zero
value only if $! is set to that value, eg
use Errno;
unless (open(FH, "/fangorn/spouse")) {
if ($!{ENOENT}) {
warn "Get a wife!\n";
} else {
warn "This path is barred: $!";
}
}
AUTHOR
Graham Barr <gbarr@pobox.com>
COPYRIGHT
Copyright (c) 1997-8 Graham Barr. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- AUTHOR
-
- COPYRIGHT
-
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