.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.13)
.\"
.\" 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
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
'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 turned on, 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.
.ie \nF \{\
.    de IX
.    tm Index:\\$1\t\\n%\t"\\$2"
..
.    nr % 0
.    rr F
.\}
.el \{\
.    de IX
..
.\}
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "PERL573DELTA 1"
.TH PERL573DELTA 1 "2009-02-12" "perl v5.10.1" "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"
perl573delta \- what's new for perl v5.7.3
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This document describes differences between the 5.7.2 release and the
5.7.3 release.
.PP
(To view the differences between the 5.6.0 release and the 5.7.0
release, see perl570delta.  To view the differences between the
5.7.0 release and the 5.7.1 release, see perl571delta.  To view
the differences between the 5.7.1 release and the 5.7.2 release,
see perl572delta.)
.SH "Changes"
.IX Header "Changes"
This is just a selected list of some of the more notable changes.
The numbers refer to the Perl repository change numbers; see
Changes58 (or Changes in Perl 5.8.1).  In addition to these
changes, lots of work took place in integrating threads, PerlIO, and
Unicode; general code cleanup; and last but not least porting to
non-UNIX lands such as Win32, \s-1VMS\s0, Cygwin, \s-1DJGPP\s0, \s-1VOS\s0, MacOS Classic,
and \s-1EBCDIC\s0.
.IP "11362" 4
.IX Item "11362"
add \s-1LC_MESSAGES\s0 to \s-1POSIX\s0 :locale_h export tag
.IP "11371" 4
.IX Item "11371"
add \s-1DEL\s0 to [:cntrl:]
.IP "11375" 4
.IX Item "11375"
make h2ph understand constants like 1234L and 5678LL
.IP "11405" 4
.IX Item "11405"
Win32: fix bugs in handling of the virtualized environment
.IP "11410" 4
.IX Item "11410"
fix a bug in the security taint checking of \fIopen()\fR
.IP "11423" 4
.IX Item "11423"
make perl \fIfork()\fR safe even on platforms that don't have \fIpthread_atfork()\fR
.IP "11459" 4
.IX Item "11459"
make switching optimization and debugging levels during Perl builds
easier via the \s-1OPTIMIZE\s0 environment variable
.IP "11475" 4
.IX Item "11475"
make \fIsplit()\fR's unused captures to be undef, not ''
.IP "11485" 4
.IX Item "11485"
Search::Dict: allow transforming lines before comparing
.IP "11490" 4
.IX Item "11490"
allow installing extra modules or bundles when building Perl
.IP "11516" 4
.IX Item "11516"
add \-Wall in cflags when compiling with gcc to weed out dubious
C practices
.IP "11541" 4
.IX Item "11541"
pluggable optimizer
.IP "11549" 4
.IX Item "11549"
WinCE: integrate the port
.IP "11589" 4
.IX Item "11589"
Win32: 4\-arg select was broken
.IP "11594" 4
.IX Item "11594"
introduce the perlivp utility for verifying the Perl installation
(\s-1IVP\s0 = Installation Verification Procedure)
.IP "11623" 4
.IX Item "11623"
rename lib/unicode to lib/unicore to avoid case-insensitivity problems
with lib/Unicode
.IP "111631" 4
.IX Item "111631"
remove Time::Piece
.IP "11643" 4
.IX Item "11643"
document that use utf8 is not the right way most of the time
.IP "11656" 4
.IX Item "11656"
allow building perl with \-DUSE_UTF8_SCRIPTS which makes \s-1UTF\-8\s0
the default script encoding (not the default since that would
break all scripts having legacy eight-bit data in them)
.IP "11725" 4
.IX Item "11725"
division preserving 64\-bit integers
.IP "11743" 4
.IX Item "11743"
document the coderef\-in\-@INC feature
.IP "11794" 4
.IX Item "11794"
modulo (%) preserving 64\-bit integers
.IP "11825" 4
.IX Item "11825"
update to Unicode 3.1.1
.IP "11865" 4
.IX Item "11865"
add the \e[$@%&*] prototype support
.IP "11874" 4
.IX Item "11874"
\&\fIoct()\fR and \fIhex()\fR in glorious 64 bit
.IP "11877" 4
.IX Item "11877"
Class::Struct: allow recursive classes
.IP "11993" 4
.IX Item "11993"
fix unpack U to be the reverse of pack U
.IP "12056" 4
.IX Item "12056"
\&\s-1VMS:\s0 waitpid enhancements
.IP "12180" 4
.IX Item "12180"
unpack(\*(L"Z*Z*\*(R", pack(\*(L"Z*Z*\*(R", ..)) was broken
.IP "12243" 4
.IX Item "12243"
Devel::Peek: display \s-1UTF\-8\s0 SVs also as \ex{...}
.IP "12288" 4
.IX Item "12288"
Data::Dumper: option to sort hashes
.IP "12542" 4
.IX Item "12542"
add perlpodspec
.IP "12652" 4
.IX Item "12652"
threadsafe DynaLoader, re, Opcode, File::Glob, and B
.IP "12756" 4
.IX Item "12756"
support BeOS better
.IP "12874" 4
.IX Item "12874"
read-only hashes (user-level interface is Hash::Util)
.IP "13162" 4
.IX Item "13162"
add Devel::PPPort
.IP "13179" 4
.IX Item "13179"
add the sort pragma
.IP "13326" 4
.IX Item "13326"
\&\s-1VMS:\s0 fix perl \-P
.IP "13358" 4
.IX Item "13358"
add perlpacktut
.IP "13452" 4
.IX Item "13452"
SUPER-UX: add hints file
.IP "13575" 4
.IX Item "13575"
Win32: non-blocking waitpid(\-1,WNOHANG)
.IP "13684" 4
.IX Item "13684"
introduce the \-t option for gentler taint checking
.IP "14694" 4
.IX Item "14694"
add the if pragma
.IP "14832" 4
.IX Item "14832"
implement IV/UV/NV/long double un/packing with j/J/F/D
.IP "14854" 4
.IX Item "14854"
document the new taint behaviour of exec \s-1LIST\s0 and system \s-1LIST\s0
.SH "Reporting Bugs"
.IX Header "Reporting Bugs"
If you find what you think is a bug, you might check the articles
recently posted to the comp.lang.perl.misc newsgroup and the perl
bug database at http://bugs.perl.org.  There may also be
information at http://www.perl.com/, the Perl Home Page.
.PP
If you believe you have an unreported bug, please run the \fBperlbug\fR
program included with your release.  Be sure to trim your bug down
to a tiny but sufficient test case.  Your bug report, along with the
output of \f(CW\*(C`perl \-V\*(C'\fR, will be sent off to perlbug@perl.org to be
analysed by the Perl porting team.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
The \fIChanges\fR file for exhaustive details on what changed.
.PP
The \fI\s-1INSTALL\s0\fR file for how to build Perl.
.PP
The \fI\s-1README\s0\fR file for general stuff.
.PP
The \fIArtistic\fR and \fICopying\fR files for copyright information.
.SH "HISTORY"
.IX Header "HISTORY"
Written by Jarkko Hietaniemi <\fIjhi@iki.fi\fR>, with many contributions
from The Perl Porters and Perl Users submitting feedback and patches.
.PP
Send omissions or corrections to <\fIperlbug@perl.org\fR>.
