Errno

(source, CPAN)

version 1.111

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NAME
SYNOPSIS
DESCRIPTION
AUTHOR
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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>

CONTENTS

#NAME

#SYNOPSIS

#DESCRIPTION

#AUTHOR

#COPYRIGHT