Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man3pm/Errno.3pm b/upstream/mageia-cauldron/man3pm/Errno.3pm
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+.    ds C` ""
+.    ds C' ""
+'br\}
+.el\{\
+.    ds C`
+.    ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD.  Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+.    if \nF \{\
+.        de IX
+.        tm Index:\\$1\t\\n%\t"\\$2"
+..
+.        if !\nF==2 \{\
+.            nr % 0
+.            nr F 2
+.        \}
+.    \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "Errno 3pm"
+.TH Errno 3pm 2023-12-15 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+Errno \- System errno constants
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\&    use Errno qw(EINTR EIO :POSIX);
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+\&\f(CW\*(C`Errno\*(C'\fR defines and conditionally exports all the error constants
+defined in your system \fIerrno.h\fR include file. It has a single export
+tag, \f(CW\*(C`:POSIX\*(C'\fR, which will export all POSIX defined error numbers.
+.PP
+On Windows, \f(CW\*(C`Errno\*(C'\fR also defines and conditionally exports all the
+Winsock error constants defined in your system \fIWinError.h\fR include
+file. These are included in a second export tag, \f(CW\*(C`:WINSOCK\*(C'\fR.
+.PP
+\&\f(CW\*(C`Errno\*(C'\fR also makes \f(CW\*(C`%!\*(C'\fR magic such that each element of \f(CW\*(C`%!\*(C'\fR has a
+non-zero value only if \f(CW$!\fR is set to that value. For example:
+.PP
+.Vb 8
+\&    my $fh;
+\&    unless (open($fh, "<", "/fangorn/spouse")) {
+\&        if ($!{ENOENT}) {
+\&            warn "Get a wife!\en";
+\&        } else {
+\&            warn "This path is barred: $!";
+\&        } 
+\&    }
+.Ve
+.PP
+If a specified constant \f(CW\*(C`EFOO\*(C'\fR does not exist on the system, \f(CW$!{EFOO}\fR
+returns \f(CW""\fR.  You may use \f(CW\*(C`exists $!{EFOO}\*(C'\fR to check whether the
+constant is available on the system.
+.PP
+Perl automatically loads \f(CW\*(C`Errno\*(C'\fR the first time you use \f(CW\*(C`%!\*(C'\fR, so you don't
+need an explicit \f(CW\*(C`use\*(C'\fR.
+.SH CAVEATS
+.IX Header "CAVEATS"
+Importing a particular constant may not be very portable, because the
+import will fail on platforms that do not have that constant.  A more
+portable way to set \f(CW$!\fR to a valid value is to use:
+.PP
+.Vb 3
+\&    if (exists &Errno::EFOO) {
+\&        $! = &Errno::EFOO;
+\&    }
+.Ve
+.SH AUTHOR
+.IX Header "AUTHOR"
+Graham Barr <gbarr@pobox.com>
+.SH COPYRIGHT
+.IX Header "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.