argra****@users*****
argra****@users*****
2009年 9月 25日 (金) 06:10:40 JST
Index: docs/perl/5.10.1/perl5101delta.pod
diff -u docs/perl/5.10.1/perl5101delta.pod:1.1 docs/perl/5.10.1/perl5101delta.pod:1.2
--- docs/perl/5.10.1/perl5101delta.pod:1.1 Fri Sep 25 03:06:28 2009
+++ docs/perl/5.10.1/perl5101delta.pod Fri Sep 25 06:10:40 2009
@@ -51,6 +51,11 @@
=end original
+The handling of complex expressions by the C<given>/C<when> switch
+statement has been enhanced. There are two new cases where C<when> now
+interprets its argument as a boolean, instead of an expression to be used
+in a smart match:
+(TBT)
=over 4
@@ -63,6 +68,9 @@
=end original
+The C<..> and C<...> flip-flop operators are now evaluated in boolean
+context, following their usual semantics; see L<perlop/"Range Operators">.
+(TBT)
=begin original
@@ -72,6 +80,10 @@
=end original
+Note that, as in perl 5.10.0, C<when (1..10)> will not work to test
+whether a given value is an integer between 1 and 10; you should use
+C<when ([1..10])> instead (note the array reference).
+(TBT)
=begin original
@@ -81,6 +93,10 @@
=end original
+However, contrary to 5.10.0, evaluating the flip-flop operators in boolean
+context ensures it can now be useful in a C<when()>, notably for
+implementing bistable conditions, like in:
+(TBT)
when (/^=begin/ .. /^=end/) {
# do something
@@ -97,6 +113,11 @@
=end original
+A compound expression involving the defined-or operator, as in
+C<when (expr1 // expr2)>, will be treated as boolean if the first
+expression is boolean. (This just extends the existing rule that applies
+to the regular or operator, as in C<when (expr1 || expr2)>.)
+(TBT)
=back
@@ -108,6 +129,10 @@
=end original
+The next section details more changes brought to the semantics to
+the smart match operator, that naturally also modify the behaviour
+of the switch statements where smart matching is implicitly used.
+(TBT)
=head2 Smart match changes
@@ -127,6 +152,12 @@
=end original
+The smart match operator C<~~> is no longer commutative. The behaviour of
+a smart match now depends primarily on the type of its right hand
+argument. Moreover, its semantics have been adjusted for greater
+consistency or usefulness in several cases. While the general backwards
+compatibility is maintained, several changes must be noted:
+(TBT)
=over 4
@@ -140,6 +171,10 @@
=end original
+Code references with an empty prototype are no longer treated specially.
+They are passed an argument like the other code references (even if they
+choose to ignore it).
+(TBT)
=item *
@@ -152,6 +187,11 @@
=end original
+C<%hash ~~ sub {}> and C<@array ~~ sub {}> now test that the subroutine
+returns a true value for each key of the hash (or element of the
+array), instead of passing the whole hash or array as a reference to
+the subroutine.
+(TBT)
=item *
@@ -163,6 +203,10 @@
=end original
+Due to the commutativity breakage, code references are no longer
+treated specially when appearing on the left of the C<~~> operator,
+but like any vulgar scalar.
+(TBT)
=item *
@@ -174,6 +218,10 @@
=end original
+C<undef ~~ %hash> is always false (since C<undef> can't be a key in a
+hash). No implicit conversion to C<""> is done (as was the case in perl
+5.10.0).
+(TBT)
=item *
@@ -186,6 +234,11 @@
=end original
+C<$scalar ~~ @array> now always distributes the smart match across the
+elements of the array. It's true if one element in @array verifies
+C<$scalar ~~ $element>. This is a generalization of the old behaviour
+that tested whether the array contained the scalar.
+(TBT)
=back
@@ -196,6 +249,9 @@
=end original
+The full dispatch table for the smart match operator is given in
+L<perlsyn/"Smart matching in detail">.
+(TBT)
=head3 Smart match and overloading
@@ -217,6 +273,18 @@
=end original
+According to the rule of dispatch based on the rightmost argument type,
+when an object overloading C<~~> appears on the right side of the
+operator, the overload routine will always be called (with a 3rd argument
+set to a true value, see L<overload>.) However, when the object will
+appear on the left, the overload routine will be called only when the
+rightmost argument is a simple scalar. This way distributivity of smart match
+across arrays is not broken, as well as the other behaviours with complex
+types (coderefs, hashes, regexes). Thus, writers of overloading routines
+for smart match mostly need to worry only with comparing against a scalar,
+and possibly with stringification overloading; the other common cases
+will be automatically handled consistently.
+(TBT)
=begin original
@@ -227,6 +295,11 @@
=end original
+C<~~> will now refuse to work on objects that do not overload it (in order
+to avoid relying on the object's underlying structure). (However, if the
+object overloads the stringification or the numification operators, and
+if overload fallback is active, it will be used instead, as usual.)
+(TBT)
=head2 Other incompatible changes
@@ -243,6 +316,9 @@
=end original
+The semantics of C<use feature :5.10*> have changed slightly.
+See L<"Modules and Pragmata"> for more information.
+(TBT)
=item *
@@ -255,6 +331,11 @@
=end original
+It is now a run-time error to use the smart match operator C<~~>
+with an object that has no overload defined for it. (This way
+C<~~> will not break encapsulation by matching against the
+object's internal representation as a reference.)
+(TBT)
=item *
@@ -268,6 +349,12 @@
=end original
+The version control system used for the development of the perl
+interpreter has been switched from Perforce to git. This is mainly an
+internal issue that only affects people actively working on the perl core;
+but it may have minor external visibility, for example in some of details
+of the output of C<perl -V>. See L<perlrepository> for more information.
+(TBT)
=item *
@@ -285,6 +372,16 @@
=end original
+The internal structure of the C<ext/> directory in the perl source has
+been reorganised. In general, a module C<Foo::Bar> whose source was
+stored under F<ext/Foo/Bar/> is now located under F<ext/Foo-Bar/>. Also,
+some modules have been moved from F<lib/> to F<ext/>. This is purely a
+source tarball change, and should make no difference to the compilation or
+installation of perl, unless you have a very customised build process that
+explicitly relies on this structure, or which hard-codes the C<nonxs_ext>
+F<Configure> parameter. Specifically, this change does not by default
+alter the location of any files in the final installation.
+(TBT)
=item *
@@ -296,6 +393,10 @@
=end original
+As part of the C<Test::Harness> 2.x to 3.x upgrade, the experimental
+C<Test::Harness::Straps> module has been removed.
+See L</"Updated Modules"> for more details.
+(TBT)
=item *
@@ -307,6 +408,10 @@
=end original
+As part of the C<ExtUtils::MakeMaker> upgrade, the
+C<ExtUtils::MakeMaker::bytes> and C<ExtUtils::MakeMaker::vmsish> modules
+have been removed from this distribution.
+(TBT)
=item *
@@ -316,6 +421,8 @@
=end original
+C<Module::CoreList> no longer contains the C<%:patchlevel> hash.
+(TBT)
=item *
@@ -326,6 +433,9 @@
=end original
+This one is actually a change introduced in 5.10.0, but it was missed
+from that release's perldelta, so it is mentioned here instead.
+(TBT)
=begin original
@@ -334,6 +444,9 @@
=end original
+A bugfix related to the handling of the C</m> modifier and C<qr> resulted
+in a change of behaviour between 5.8.x and 5.10.0:
+(TBT)
# matches in 5.8.x, doesn't match in 5.10.0
$re = qr/^bar/; "foo\nbar" =~ /$re/m;
@@ -375,6 +488,12 @@
=end original
+As of Perl 5.10.1 there is a new interface for plugging and using method
+resolution orders other than the default (linear depth first search).
+The C3 method resolution order added in 5.10.0 has been re-implemented as
+a plugin, without changing its Perl-space interface. See L<perlmroapi> for
+more information.
+(TBT)
=head2 The C<overloading> pragma
@@ -387,6 +506,9 @@
=end original
+This pragma allows you to lexically disable or enable overloading
+for some or all operations. (Yuval Kogman)
+(TBT)
=head2 Parallel tests
@@ -401,6 +523,11 @@
=end original
+The core distribution can now run its regression tests in parallel on
+Unix-like platforms. Instead of running C<make test>, set C<TEST_JOBS> in
+your environment to the number of tests to run in parallel, and run
+C<make test_harness>. On a Bourne-like shell, this can be done as
+(TBT)
TEST_JOBS=3 make test_harness # Run 3 tests in parallel
@@ -413,6 +540,11 @@
=end original
+An environment variable is used, rather than parallel make itself, because
+L<TAP::Harness> needs to be able to schedule individual non-conflicting test
+scripts itself, and there is no standard interface to C<make> utilities to
+interact with their job schedulers.
+(TBT)
=begin original
@@ -422,6 +554,10 @@
=end original
+Note that currently some test scripts may fail when run in parallel (most
+notably C<ext/IO/t/io_dir.t>). If necessary run just the failing scripts
+again sequentially and see if the failures go away.
+(TBT)
=head2 DTrace support
@@ -433,6 +569,8 @@
=end original
+Some support for DTrace has been added. See "DTrace support" in F<INSTALL>.
+(TBT)
=head2 Support for C<configure_requires> in CPAN module metadata
@@ -447,6 +585,11 @@
=end original
+Both C<CPAN> and C<CPANPLUS> now support the C<configure_requires> keyword
+in the C<META.yml> metadata file included in most recent CPAN distributions.
+This allows distribution authors to specify configuration prerequisites that
+must be installed before running F<Makefile.PL> or F<Build.PL>.
+(TBT)
=begin original
@@ -455,6 +598,9 @@
=end original
+See the documentation for C<ExtUtils::MakeMaker> or C<Module::Build> for more
+on how to specify C<configure_requires> when creating a distribution for CPAN.
+(TBT)
=head1 Modules and Pragmata
@@ -477,6 +623,11 @@
=end original
+This is a new lexically-scoped alternative for the C<Fatal> module.
+The bundled version is 2.06_01. Note that in this release, using a string
+eval when C<autodie> is in effect can cause the autodie behaviour to leak
+into the surrounding scope. See L<autodie/"BUGS"> for more details.
+(TBT)
=item C<Compress::Raw::Bzip2>
@@ -486,6 +637,8 @@
=end original
+This has been added to the core (version 2.020).
+(TBT)
=item C<parent>
@@ -496,6 +649,9 @@
=end original
+This pragma establishes an ISA relationship with base classes at compile
+time. It provides the key feature of C<base> without the feature creep.
+(TBT)
=item C<Parse::CPAN::Meta>
@@ -505,6 +661,8 @@
=end original
+This has been added to the core (version 1.39).
+(TBT)
=back
@@ -522,6 +680,7 @@
=end original
+0.08 から 0.09 に更新されました。
=item C<attrs>
@@ -531,6 +690,7 @@
=end original
+1.02 から 1.03 に更新されました。
=item C<base>
@@ -540,6 +700,9 @@
=end original
+2.13 から 2.14 に更新されました。
+See L<parent> for a replacement.
+(TBT)
=item C<bigint>
@@ -549,6 +712,7 @@
=end original
+0.22 から 0.23 に更新されました。
=item C<bignum>
@@ -558,6 +722,7 @@
=end original
+0.22 から 0.23 に更新されました。
=item C<bigrat>
@@ -567,6 +732,7 @@
=end original
+0.22 から 0.23 に更新されました。
=item C<charnames>
@@ -576,6 +742,7 @@
=end original
+1.06 から 1.07 に更新されました。
=begin original
@@ -585,6 +752,10 @@
=end original
+The Unicode F<NameAliases.txt> database file has been added. This has the
+effect of adding some extra C<\N> character names that formerly wouldn't
+have been recognised; for example, C<"\N{LATIN CAPITAL LETTER GHA}">.
+(TBT)
=item C<constant>
@@ -594,6 +765,7 @@
=end original
+1.13 から 1.17 に更新されました。
=item C<feature>
@@ -608,6 +780,13 @@
=end original
+The meaning of the C<:5.10> and C<:5.10.X> feature bundles has
+changed slightly. The last component, if any (i.e. C<X>) is simply ignored.
+This is predicated on the assumption that new features will not, in
+general, be added to maintenance releases. So C<:5.10> and C<:5.10.X>
+have identical effect. This is a change to the behaviour documented for
+5.10.0.
+(TBT)
=item C<fields>
@@ -618,6 +797,9 @@
=end original
+2.13 から 2.14 に更新されました (this was just a version bump; there
+were no functional changes).
+(TBT)
=item C<lib>
@@ -627,6 +809,7 @@
=end original
+0.5565 から 0.62 に更新されました。
=item C<open>
@@ -636,6 +819,7 @@
=end original
+1.06 から 1.07 に更新されました。
=item C<overload>
@@ -645,6 +829,7 @@
=end original
+1.06 から 1.07 に更新されました。
=item C<overloading>
@@ -654,6 +839,8 @@
=end original
+See L</"The C<overloading> pragma"> above.
+(TBT)
=item C<version>
@@ -663,6 +850,7 @@
=end original
+0.74 から 0.77 に更新されました。
=back
@@ -680,6 +868,7 @@
=end original
+0.24 から 0.34 に更新されました。
=item C<Archive::Tar>
@@ -689,6 +878,7 @@
=end original
+1.38 から 1.52 に更新されました。
=item C<Attribute::Handlers>
@@ -698,6 +888,7 @@
=end original
+0.79 から 0.85 に更新されました。
=item C<AutoLoader>
@@ -707,6 +898,7 @@
=end original
+5.63 から 5.68 に更新されました。
=item C<AutoSplit>
@@ -716,6 +908,7 @@
=end original
+1.05 から 1.06 に更新されました。
=item C<B>
@@ -725,6 +918,7 @@
=end original
+1.17 から 1.22 に更新されました。
=item C<B::Debug>
@@ -734,6 +928,7 @@
=end original
+1.05 から 1.11 に更新されました。
=item C<B::Deparse>
@@ -743,6 +938,7 @@
=end original
+0.83 から 0.89 に更新されました。
=item C<B::Lint>
@@ -752,6 +948,7 @@
=end original
+1.09 から 1.11 に更新されました。
=item C<B::Xref>
@@ -761,6 +958,7 @@
=end original
+1.01 から 1.02 に更新されました。
=item C<Benchmark>
@@ -770,6 +968,7 @@
=end original
+1.10 から 1.11 に更新されました。
=item C<Carp>
@@ -779,6 +978,7 @@
=end original
+1.08 から 1.11 に更新されました。
=item C<CGI>
@@ -789,6 +989,9 @@
=end original
+3.29 から 3.43 に更新されました。
+(also includes the "default_value for popup_menu()" fix from 3.45).
+(TBT)
=item C<Compress::Zlib>
@@ -798,6 +1001,7 @@
=end original
+2.008 から 2.020 に更新されました。
=item C<CPAN>
@@ -808,6 +1012,10 @@
=end original
+1.9205 から 1.9402 に更新されました。
+C<CPAN::FTP> has a local fix to
+stop it being too verbose on download failure.
+(TBT)
=item C<CPANPLUS>
@@ -817,6 +1025,7 @@
=end original
+0.84 から 0.88 に更新されました。
=item C<CPANPLUS::Dist::Build>
@@ -826,6 +1035,7 @@
=end original
+0.06_02 から 0.36 に更新されました。
=item C<Cwd>
@@ -835,6 +1045,7 @@
=end original
+3.25_01 から 3.30 に更新されました。
=item C<Data::Dumper>
@@ -844,6 +1055,7 @@
=end original
+2.121_14 から 2.124 に更新されました。
=item C<DB>
@@ -853,6 +1065,7 @@
=end original
+1.01 から 1.02 に更新されました。
=item C<DB_File>
@@ -862,6 +1075,7 @@
=end original
+1.816_1 から 1.820 に更新されました。
=item C<Devel::PPPort>
@@ -871,6 +1085,7 @@
=end original
+3.13 から 3.19 に更新されました。
=item C<Digest::MD5>
@@ -880,6 +1095,7 @@
=end original
+2.36_01 から 2.39 に更新されました。
=item C<Digest::SHA>
@@ -889,6 +1105,7 @@
=end original
+5.45 から 5.47 に更新されました。
=item C<DirHandle>
@@ -898,6 +1115,7 @@
=end original
+1.01 から 1.03 に更新されました。
=item C<Dumpvalue>
@@ -907,6 +1125,7 @@
=end original
+1.12 から 1.13 に更新されました。
=item C<DynaLoader>
@@ -916,6 +1135,7 @@
=end original
+1.08 から 1.10 に更新されました。
=item C<Encode>
@@ -925,6 +1145,7 @@
=end original
+2.23 から 2.35 に更新されました。
=item C<Errno>
@@ -934,6 +1155,7 @@
=end original
+1.10 から 1.11 に更新されました。
=item C<Exporter>
@@ -943,6 +1165,7 @@
=end original
+5.62 から 5.63 に更新されました。
=item C<ExtUtils::CBuilder>
@@ -952,6 +1175,7 @@
=end original
+0.21 から 0.2602 に更新されました。
=item C<ExtUtils::Command>
@@ -961,6 +1185,7 @@
=end original
+1.13 から 1.16 に更新されました。
=item C<ExtUtils::Constant>
@@ -971,6 +1196,10 @@
=end original
+0.20 から 0.22 に更新されました。
+(Note that neither of these versions are
+available on CPAN.)
+(TBT)
=item C<ExtUtils::Embed>
@@ -980,6 +1209,7 @@
=end original
+1.27 から 1.28 に更新されました。
=item C<ExtUtils::Install>
@@ -989,6 +1219,7 @@
=end original
+1.44 から 1.54 に更新されました。
=item C<ExtUtils::MakeMaker>
@@ -998,6 +1229,7 @@
=end original
+6.42 から 6.55_02 に更新されました。
=begin original
@@ -1006,6 +1238,9 @@
=end original
+Note that C<ExtUtils::MakeMaker::bytes> and C<ExtUtils::MakeMaker::vmsish>
+have been removed from this distribution.
+(TBT)
=item C<ExtUtils::Manifest>
@@ -1015,6 +1250,7 @@
=end original
+1.51_01 から 1.56 に更新されました。
=item C<ExtUtils::ParseXS>
@@ -1024,6 +1260,7 @@
=end original
+2.18_02 から 2.2002 に更新されました。
=item C<Fatal>
@@ -1033,6 +1270,9 @@
=end original
+1.05 から 2.06_01 に更新されました。
+See also the new pragma C<autodie>.
+(TBT)
=item C<File::Basename>
@@ -1042,6 +1282,7 @@
=end original
+2.76 から 2.77 に更新されました。
=item C<File::Compare>
@@ -1051,6 +1292,7 @@
=end original
+1.1005 から 1.1006 に更新されました。
=item C<File::Copy>
@@ -1060,6 +1302,7 @@
=end original
+2.11 から 2.14 に更新されました。
=item C<File::Fetch>
@@ -1069,6 +1312,7 @@
=end original
+0.14 から 0.20 に更新されました。
=item C<File::Find>
@@ -1078,6 +1322,7 @@
=end original
+1.12 から 1.14 に更新されました。
=item C<File::Path>
@@ -1087,6 +1332,7 @@
=end original
+2.04 から 2.07_03 に更新されました。
=item C<File::Spec>
@@ -1096,6 +1342,7 @@
=end original
+3.2501 から 3.30 に更新されました。
=item C<File::stat>
@@ -1105,6 +1352,7 @@
=end original
+1.00 から 1.01 に更新されました。
=item C<File::Temp>
@@ -1114,6 +1362,7 @@
=end original
+0.18 から 0.22 に更新されました。
=item C<FileCache>
@@ -1123,6 +1372,7 @@
=end original
+1.07 から 1.08 に更新されました。
=item C<FileHandle>
@@ -1132,6 +1382,7 @@
=end original
+2.01 から 2.02 に更新されました。
=item C<Filter::Simple>
@@ -1141,6 +1392,7 @@
=end original
+0.82 から 0.84 に更新されました。
=item C<Filter::Util::Call>
@@ -1150,6 +1402,7 @@
=end original
+1.07 から 1.08 に更新されました。
=item C<FindBin>
@@ -1159,6 +1412,7 @@
=end original
+1.49 から 1.50 に更新されました。
=item C<GDBM_File>
@@ -1168,6 +1422,7 @@
=end original
+1.08 から 1.09 に更新されました。
=item C<Getopt::Long>
@@ -1177,6 +1432,7 @@
=end original
+2.37 から 2.38 に更新されました。
=item C<Hash::Util::FieldHash>
@@ -1186,6 +1442,8 @@
=end original
+1.03 から 1.04 に更新されました。
+これはメモリリークを修正しています。
=item C<I18N::Collate>
@@ -1195,6 +1453,7 @@
=end original
+1.00 から 1.01 に更新されました。
=item C<IO>
@@ -1204,6 +1463,7 @@
=end original
+1.23_01 から 1.25 に更新されました。
=begin original
@@ -1212,6 +1472,9 @@
=end original
+This makes non-blocking mode work on Windows in C<IO::Socket::INET>
+[CPAN #43573].
+(TBT)
=item C<IO::Compress::*>
@@ -1221,6 +1484,7 @@
=end original
+2.008 から 2.020 に更新されました。
=item C<IO::Dir>
@@ -1230,6 +1494,7 @@
=end original
+1.06 から 1.07 に更新されました。
=item C<IO::Handle>
@@ -1239,6 +1504,7 @@
=end original
+1.27 から 1.28 に更新されました。
=item C<IO::Socket>
@@ -1248,6 +1514,7 @@
=end original
+1.30_01 から 1.31 に更新されました。
=item C<IO::Zlib>
@@ -1257,6 +1524,7 @@
=end original
+1.07 から 1.09 に更新されました。
=item C<IPC::Cmd>
@@ -1266,6 +1534,7 @@
=end original
+0.40_1 から 0.46 に更新されました。
=item C<IPC::Open3>
@@ -1275,6 +1544,7 @@
=end original
+1.02 から 1.04 に更新されました。
=item C<IPC::SysV>
@@ -1284,6 +1554,7 @@
=end original
+1.05 から 2.01 に更新されました。
=item C<lib>
@@ -1293,6 +1564,7 @@
=end original
+0.5565 から 0.62 に更新されました。
=item C<List::Util>
@@ -1302,6 +1574,7 @@
=end original
+1.19 から 1.21 に更新されました。
=item C<Locale::MakeText>
@@ -1311,6 +1584,7 @@
=end original
+1.12 から 1.13 に更新されました。
=item C<Log::Message>
@@ -1320,6 +1594,7 @@
=end original
+0.01 から 0.02 に更新されました。
=item C<Math::BigFloat>
@@ -1329,6 +1604,7 @@
=end original
+1.59 から 1.60 に更新されました。
=item C<Math::BigInt>
@@ -1338,6 +1614,7 @@
=end original
+1.88 から 1.89 に更新されました。
=item C<Math::BigInt::FastCalc>
@@ -1347,6 +1624,7 @@
=end original
+0.16 から 0.19 に更新されました。
=item C<Math::BigRat>
@@ -1356,6 +1634,7 @@
=end original
+0.21 から 0.22 に更新されました。
=item C<Math::Complex>
@@ -1365,6 +1644,7 @@
=end original
+1.37 から 1.56 に更新されました。
=item C<Math::Trig>
@@ -1374,6 +1654,7 @@
=end original
+1.04 から 1.20 に更新されました。
=item C<Memoize>
@@ -1384,6 +1665,9 @@
=end original
+1.01_02 から 1.01_03 に更新されました
+(just a minor documentation change).
+(TBT)
=item C<Module::Build>
@@ -1393,6 +1677,7 @@
=end original
+0.2808_01 から 0.34_02 に更新されました。
=item C<Module::CoreList>
@@ -1403,6 +1688,10 @@
=end original
+2.13 から 2.18 に更新されました。
+This release no longer contains the
+C<%Module::CoreList::patchlevel> hash.
+(TBT)
=item C<Module::Load>
@@ -1412,6 +1701,7 @@
=end original
+0.12 から 0.16 に更新されました。
=item C<Module::Load::Conditional>
@@ -1421,6 +1711,7 @@
=end original
+0.22 から 0.30 に更新されました。
=item C<Module::Loaded>
@@ -1430,6 +1721,7 @@
=end original
+0.01 から 0.02 に更新されました。
=item C<Module::Pluggable>
@@ -1439,6 +1731,7 @@
=end original
+3.6 から 3.9 に更新されました。
=item C<NDBM_File>
@@ -1448,6 +1741,7 @@
=end original
+1.07 から 1.08 に更新されました。
=item C<Net::Ping>
@@ -1457,6 +1751,7 @@
=end original
+2.33 から 2.36 に更新されました。
=item C<NEXT>
@@ -1466,6 +1761,7 @@
=end original
+0.60_01 から 0.64 に更新されました。
=item C<Object::Accessor>
@@ -1475,6 +1771,7 @@
=end original
+0.32 から 0.34 に更新されました。
=item C<OS2::REXX>
@@ -1484,6 +1781,7 @@
=end original
+1.03 から 1.04 に更新されました。
=item C<Package::Constants>
@@ -1493,6 +1791,7 @@
=end original
+0.01 から 0.02 に更新されました。
=item C<PerlIO>
@@ -1502,6 +1801,7 @@
=end original
+1.04 から 1.06 に更新されました。
=item C<PerlIO::via>
@@ -1511,6 +1811,7 @@
=end original
+0.04 から 0.07 に更新されました。
=item C<Pod::Man>
@@ -1520,6 +1821,7 @@
=end original
+2.16 から 2.22 に更新されました。
=item C<Pod::Parser>
@@ -1529,6 +1831,7 @@
=end original
+1.35 から 1.37 に更新されました。
=item C<Pod::Simple>
@@ -1538,6 +1841,7 @@
=end original
+3.05 から 3.07 に更新されました。
=item C<Pod::Text>
@@ -1547,6 +1851,7 @@
=end original
+3.08 から 3.13 に更新されました。
=item C<POSIX>
@@ -1556,6 +1861,7 @@
=end original
+1.13 から 1.17 に更新されました。
=item C<Safe>
@@ -1565,6 +1871,7 @@
=end original
+2.12 から 2.18 に更新されました。
=item C<Scalar::Util>
@@ -1574,6 +1881,7 @@
=end original
+1.19 から 1.21 に更新されました。
=item C<SelectSaver>
@@ -1583,6 +1891,7 @@
=end original
+1.01 から 1.02 に更新されました。
=item C<SelfLoader>
@@ -1592,6 +1901,7 @@
=end original
+1.11 から 1.17 に更新されました。
=item C<Socket>
@@ -1601,6 +1911,7 @@
=end original
+1.80 から 1.82 に更新されました。
=item C<Storable>
@@ -1610,6 +1921,7 @@
=end original
+2.18 から 2.20 に更新されました。
=item C<Switch>
@@ -1619,6 +1931,8 @@
=end original
+2.13 から 2.14 に更新されました。
+L</Deprecations> を参照してください。
=item C<Symbol>
@@ -1628,6 +1942,7 @@
=end original
+1.06 から 1.07 に更新されました。
=item C<Sys::Syslog>
@@ -1637,6 +1952,7 @@
=end original
+0.22 から 0.27 に更新されました。
=item C<Term::ANSIColor>
@@ -1646,6 +1962,7 @@
=end original
+1.12 から 2.00 に更新されました。
=item C<Term::ReadLine>
@@ -1655,6 +1972,7 @@
=end original
+1.03 から 1.04 に更新されました。
=item C<Term::UI>
@@ -1664,6 +1982,7 @@
=end original
+0.18 から 0.20 に更新されました。
=item C<Test::Harness>
@@ -1673,6 +1992,7 @@
=end original
+2.64 から 3.17 に更新されました。
=begin original
@@ -1684,6 +2004,12 @@
=end original
+Note that one side-effect of the 2.x to 3.x upgrade is that the
+experimental C<Test::Harness::Straps> module (and its supporting
+C<Assert>, C<Iterator>, C<Point> and C<Results> modules) have been
+removed. If you still need this, then they are available in the
+(unmaintained) C<Test-Harness-Straps> distribution on CPAN.
+(TBT)
=item C<Test::Simple>
@@ -1693,6 +2019,7 @@
=end original
+0.72 から 0.92 に更新されました。
=item C<Text::ParseWords>
@@ -1702,6 +2029,7 @@
=end original
+3.26 から 3.27 に更新されました。
=item C<Text::Tabs>
@@ -1711,6 +2039,7 @@
=end original
+2007.1117 から 2009.0305 に更新されました。
=item C<Text::Wrap>
@@ -1720,6 +2049,7 @@
=end original
+2006.1117 から 2009.0305 に更新されました。
=item C<Thread::Queue>
@@ -1729,6 +2059,7 @@
=end original
+2.00 から 2.11 に更新されました。
=item C<Thread::Semaphore>
@@ -1738,6 +2069,7 @@
=end original
+2.01 から 2.09 に更新されました。
=item C<threads>
@@ -1747,6 +2079,7 @@
=end original
+1.67 から 1.72 に更新されました。
=item C<threads::shared>
@@ -1756,6 +2089,7 @@
=end original
+1.14 から 1.29 に更新されました。
=item C<Tie::RefHash>
@@ -1765,6 +2099,7 @@
=end original
+1.37 から 1.38 に更新されました。
=item C<Tie::StdHandle>
@@ -1775,6 +2110,9 @@
=end original
+This has documentation changes, and has been assigned a version for the
+first time: version 4.2.
+(TBT)
=item C<Time::HiRes>
@@ -1784,6 +2122,7 @@
=end original
+1.9711 から 1.9719 に更新されました。
=item C<Time::Local>
@@ -1793,6 +2132,7 @@
=end original
+1.18 から 1.1901 に更新されました。
=item C<Time::Piece>
@@ -1802,6 +2142,7 @@
=end original
+1.12 から 1.15 に更新されました。
=item C<Unicode::Normalize>
@@ -1811,6 +2152,7 @@
=end original
+1.02 から 1.03 に更新されました。
=item C<Unicode::UCD>
@@ -1820,6 +2162,7 @@
=end original
+0.25 から 0.27 に更新されました。
=begin original
@@ -1828,6 +2171,9 @@
=end original
+C<charinfo()> now works on Unified CJK code points added to later versions
+of Unicode.
+(TBT)
=begin original
@@ -1838,6 +2184,11 @@
=end original
+C<casefold()> has new fields returned to provide both a simpler interface
+and previously missing information. The old fields are retained for
+backwards compatibility. Information about Turkic-specific code points is
+now returned.
+(TBT)
=begin original
@@ -1845,6 +2196,8 @@
=end original
+The documentation has been corrected and expanded.
+(TBT)
=item C<UNIVERSAL>
@@ -1854,6 +2207,7 @@
=end original
+1.04 から 1.05 に更新されました。
=item C<Win32>
@@ -1863,6 +2217,7 @@
=end original
+0.34 から 0.39 に更新されました。
=item C<Win32API::File>
@@ -1872,6 +2227,7 @@
=end original
+0.1001_01 から 0.1101 に更新されました。
=item C<XSLoader>
@@ -1881,6 +2237,7 @@
=end original
+0.08 から 0.10 に更新されました。
=back
@@ -1899,6 +2256,9 @@
=end original
+Now looks in C<include-fixed> too, which is a recent addition to gcc's
+search path.
+(TBT)
=item F<h2xs>
@@ -1908,6 +2268,8 @@
=end original
+No longer incorrectly treats enum values like macros (Daniel Burr).
+(TBT)
=begin original
@@ -1916,6 +2278,9 @@
=end original
+Now handles C++ style constants (C<//>) properly in enums. (A patch from
+Rainer Weikusat was used; Daniel Burr also proposed a similar fix).
+(TBT)
=item F<perl5db.pl>
@@ -1925,6 +2290,8 @@
=end original
+C<LVALUE> subroutines now work under the debugger.
+(TBT)
=begin original
@@ -1933,6 +2300,9 @@
=end original
+The debugger now correctly handles proxy constant subroutines, and
+subroutine stubs.
+(TBT)
=item F<perlthanks>
@@ -1945,6 +2315,11 @@
=end original
+Perl 5.10.1 adds a new utility F<perlthanks>, which is a variant of
+F<perlbug>, but for sending non-bug-reports to the authors and maintainers
+of Perl. Getting nothing but bug reports can become a bit demoralising:
+we'll see if this changes things.
+(TBT)
=back
@@ -1962,6 +2337,8 @@
=end original
+This contains instructions on how to build perl for the Haiku platform.
+(TBT)
=item L<perlmroapi>
@@ -1971,6 +2348,8 @@
=end original
+This describes the new interface for pluggable Method Resolution Orders.
+(TBT)
=item L<perlperf>
@@ -1982,6 +2361,10 @@
=end original
+This document, by Richard Foley, provides an introduction to the use of
+performance and optimization techniques which can be used with particular
+reference to perl programs.
+(TBT)
=item L<perlrepository>
@@ -1992,6 +2375,9 @@
=end original
+This describes how to access the perl source using the I<git> version
+control system.
+(TBT)
=item L<perlthanks>
@@ -2001,6 +2387,8 @@
=end original
+This describes the new F<perlthanks> utility.
+(TBT)
=back
@@ -2017,6 +2405,11 @@
=end original
+The various large C<Changes*> files (which listed every change made to perl
+over the last 18 years) have been removed, and replaced by a small file,
+also called C<Changes>, which just explains how that same information may
+be extracted from the git version control system.
+(TBT)
=begin original
@@ -2026,6 +2419,10 @@
=end original
+The file F<Porting/patching.pod> has been deleted, as it mainly described
+interacting with the old Perforce-based repository, which is now obsolete.
+Information still relevant has been moved to L<perlrepository>.
+(TBT)
=begin original
@@ -2034,6 +2431,9 @@
=end original
+L<perlapi>, L<perlintern>, L<perlmodlib> and L<perltoc> are now all
+generated at build time, rather than being shipped as part of the release.
+(TBT)
=head1 Performance Enhancements
@@ -2049,6 +2449,8 @@
=end original
+A new internal cache means that C<isa()> will often be faster.
+(TBT)
=item *
@@ -2061,6 +2463,11 @@
=end original
+Under C<use locale>, the locale-relevant information is now cached on
+read-only values, such as the list returned by C<keys %hash>. This makes
+operations such as C<sort keys %hash> in the scope of C<use locale> much
+faster.
+(TBT)
=item *
@@ -2070,6 +2477,8 @@
=end original
+Empty C<DESTROY> methods are no longer called.
+(TBT)
=back
@@ -2097,6 +2506,18 @@
=end original
+The layout of directories in F<ext> has been revised. Specifically, all
+extensions are now flat, and at the top level, with C</> in pathnames
+replaced by C<->, so that F<ext/Data/Dumper/> is now F<ext/Data-Dumper/>,
+etc. The names of the extensions as specified to F<Configure>, and as
+reported by C<%Config::Config> under the keys C<dynamic_ext>,
+C<known_extensions>, C<nonxs_ext> and C<static_ext> have not changed, and
+still use C</>. Hence this change will not have any affect once perl is
+installed. However, C<Attribute::Handlers>, C<Safe> and C<mro> have now
+become extensions in their own right, so if you run F<Configure> with
+options to specify an exact list of extensions to build, you will need to
+change it to account for this.
+(TBT)
=begin original
@@ -2107,6 +2528,11 @@
=end original
+For 5.10.2, it is planned that many dual-life modules will have been moved
+from F<lib> to F<ext>; again this will have no effect on an installed
+perl, but will matter if you invoke F<Configure> with a pre-canned list of
+extensions to build.
+(TBT)
=head2 Configuration improvements
@@ -2119,6 +2545,9 @@
=end original
+If C<vendorlib> and C<vendorarch> are the same, then they are only added to
+C<@INC> once.
+(TBT)
=begin original
@@ -2127,6 +2556,9 @@
=end original
+C<$Config{usedevel}> and the C-level C<PERL_USE_DEVEL> are now defined if
+perl is built with C<-Dusedevel>.
+(TBT)
=begin original
@@ -2135,6 +2567,9 @@
=end original
+F<Configure> will enable use of C<-fstack-protector>, to provide protection
+against stack-smashing attacks, if the compiler supports it.
+(TBT)
=begin original
@@ -2144,6 +2579,10 @@
=end original
+F<Configure> will now determine the correct prototypes for re-entrant
+functions, and for C<gconvert>, if you are using a C++ compiler rather
+than a C compiler.
+(TBT)
=begin original
@@ -2155,6 +2594,12 @@
=end original
+On Unix, if you build from a tree containing a git repository, the
+configuration process will note the commit hash you have checked out, for
+display in the output of C<perl -v> and C<perl -V>. Unpushed local commits
+are automatically added to the list of local patches displayed by
+C<perl -V>.
+(TBT)
=head2 Compilation improvements
@@ -2169,6 +2614,11 @@
=end original
+As part of the flattening of F<ext>, all extensions on all platforms are
+built by F<make_ext.pl>. This replaces the Unix-specific
+F<ext/util/make_ext>, VMS-specific F<make_ext.com> and Win32-specific
+F<win32/buildext.pl>.
+(TBT)
=head2 Platform Specific Changes
@@ -2184,6 +2634,8 @@
=end original
+Removed F<libbsd> for AIX 5L and 6.1. Only flock() was used from F<libbsd>.
+(TBT)
=begin original
@@ -2193,6 +2645,10 @@
=end original
+Removed F<libgdbm> for AIX 5L and 6.1. The F<libgdbm> is delivered as an
+optional package with the AIX Toolbox. Unfortunately the 64 bit version
+is broken.
+(TBT)
=begin original
@@ -2200,6 +2656,8 @@
=end original
+Hints changes mean that AIX 4.2 should work again.
+(TBT)
=item Cygwin
@@ -2211,6 +2669,10 @@
=end original
+On Cygwin we now strip the last number from the DLL. This has been the
+behaviour in the cygwin.com build for years. The hints files have been
+updated.
+(TBT)
=item FreeBSD
@@ -2221,6 +2683,9 @@
=end original
+The hints files now identify the correct threading libraries on FreeBSD 7
+and later.
+(TBT)
=item Irix
@@ -2231,6 +2696,9 @@
=end original
+We now work around a bizarre preprocessor bug in the Irix 6.5 compiler:
+C<cc -E -> unfortunately goes into K&R mode, but C<cc -E file.c> doesn't.
+(TBT)
=item Haiku
@@ -2241,6 +2709,9 @@
=end original
+Patches from the Haiku maintainers have been merged in. Perl should now
+build on Haiku.
+(TBT)
=item MirOS BSD
@@ -2250,6 +2721,8 @@
=end original
+Perl should now build on MirOS BSD.
+(TBT)
=item NetBSD
@@ -2259,6 +2732,8 @@
=end original
+Hints now supports versions 5.*.
+(TBT)
=item Stratus VOS
@@ -2268,6 +2743,8 @@
=end original
+Various changes from Stratus have been merged in.
+(TBT)
=item Symbian
@@ -2277,6 +2754,8 @@
=end original
+There is now support for Symbian S60 3.2 SDK and S60 5.0 SDK.
+(TBT)
=item Win32
@@ -2287,6 +2766,9 @@
=end original
+Improved message window handling means that C<alarm> and C<kill> messages
+will no longer be dropped under race conditions.
+(TBT)
=item VMS
@@ -2298,6 +2780,10 @@
=end original
+Reads from the in-memory temporary files of C<PerlIO::scalar> used to fail
+if C<$/> was set to a numeric reference (to indicate record-style reads).
+This is now fixed.
+(TBT)
=begin original
@@ -2305,6 +2791,8 @@
=end original
+VMS now supports C<getgrgid>.
+(TBT)
=begin original
@@ -2313,6 +2801,9 @@
=end original
+Many improvements and cleanups have been made to the VMS file name handling
+and conversion code.
+(TBT)
=begin original
@@ -2323,6 +2814,11 @@
=end original
+Enabling the C<PERL_VMS_POSIX_EXIT> logical name now encodes a POSIX exit
+status in a VMS condition value for better interaction with GNV's bash
+shell and other utilities that depend on POSIX exit values. See
+L<perlvms/"$?"> for details.
+(TBT)
=back
@@ -2343,6 +2839,11 @@
=end original
+5.10.0 inadvertently disabled an optimisation, which caused a measurable
+performance drop in list assignment, such as is often used to assign
+function parameters from C<@_>. The optimisation has been re-instated, and
+the performance regression fixed.
+(TBT)
=item *
@@ -2352,6 +2853,8 @@
=end original
+Fixed memory leak on C<while (1) { map 1, 1 }> [RT #53038].
+(TBT)
=item *
@@ -2361,6 +2864,8 @@
=end original
+Some potential coredumps in PerlIO fixed [RT #57322,54828].
+(TBT)
=item *
@@ -2370,6 +2875,8 @@
=end original
+The debugger now works with lvalue subroutines.
+(TBT)
=item *
@@ -2380,6 +2887,9 @@
=end original
+The debugger's C<m> command was broken on modules that defined constants
+[RT #61222].
+(TBT)
=item *
@@ -2390,6 +2900,9 @@
=end original
+C<crypt()> and string complement could return tainted values for untainted
+arguments [RT #59998].
+(TBT)
=item *
@@ -2401,6 +2914,10 @@
=end original
+The C<-i.suffix> command-line switch now recreates the file using
+restricted permissions, before changing its mode to match the original
+file. This eliminates a potential race condition [RT #60904].
+(TBT)
=item *
@@ -2411,6 +2928,9 @@
=end original
+On some UNIX systems, the value in C<$?> would not have the top bit set
+(C<$? & 128>) even if the child core dumped.
+(TBT)
=item *
@@ -2421,6 +2941,9 @@
=end original
+Under some circumstances, $^R could incorrectly become undefined
+[RT #57042].
+(TBT)
=item *
@@ -2431,6 +2954,9 @@
=end original
+(XS) In various hash functions, passing a pre-computed hash to when the
+key is UTF-8 might result in an incorrect lookup.
+(TBT)
=item *
@@ -2441,6 +2967,9 @@
=end original
+(XS) Including F<XSUB.h> before F<perl.h> gave a compile-time error
+[RT #57176].
+(TBT)
=item *
@@ -2451,6 +2980,9 @@
=end original
+C<< $object->isa('Foo') >> would report false if the package C<Foo> didn't
+exist, even if the object's C<@ISA> contained C<Foo>.
+(TBT)
=item *
@@ -2461,6 +2993,9 @@
=end original
+Various bugs in the new-to 5.10.0 mro code, triggered by manipulating
+C<@ISA>, have been found and fixed.
+(TBT)
=item *
@@ -2471,6 +3006,9 @@
=end original
+Bitwise operations on references could crash the interpreter, e.g.
+C<$x=\$y; $x |= "foo"> [RT #54956].
+(TBT)
=item *
@@ -2481,6 +3019,9 @@
=end original
+Patterns including alternation might be sensitive to the internal UTF-8
+representation, e.g.
+(TBT)
my $byte = chr(192);
my $utf8 = chr(192); utf8::upgrade($utf8);
@@ -2497,6 +3038,11 @@
=end original
+Within UTF8-encoded Perl source files (i.e. where C<use utf8> is in
+effect), double-quoted literal strings could be corrupted where a C<\xNN>,
+C<\0NNN> or C<\N{}> is followed by a literal character with ordinal value
+greater than 255 [RT #59908].
+(TBT)
=item *
@@ -2508,6 +3054,10 @@
=end original
+C<B::Deparse> failed to correctly deparse various constructs:
+C<readpipe STRING> [RT #62428], C<CORE::require(STRING)> [RT #62488],
+C<sub foo(_)> [RT #62484].
+(TBT)
=item *
@@ -2517,6 +3067,8 @@
=end original
+Using C<setpgrp()> with no arguments could corrupt the perl stack.
+(TBT)
=item *
@@ -2527,6 +3079,9 @@
=end original
+The block form of C<eval> is now specifically trappable by C<Safe> and
+C<ops>. Previously it was erroneously treated like string C<eval>.
+(TBT)
=item *
@@ -2537,6 +3092,9 @@
=end original
+In 5.10.0, the two characters C<[~> were sometimes parsed as the smart
+match operator (C<~~>) [RT #63854].
+(TBT)
=item *
@@ -2547,6 +3105,9 @@
=end original
+In 5.10.0, the C<*> quantifier in patterns was sometimes treated as
+C<{0,32767}> [RT #60034, #60464]. For example, this match would fail:
+(TBT)
("ab" x 32768) =~ /^(ab)*$/
@@ -2558,6 +3119,8 @@
=end original
+C<shmget> was limited to a 32 bit segment size on a 64 bit OS [RT #63924].
+(TBT)
=item *
@@ -2568,6 +3131,9 @@
=end original
+Using C<next> or C<last> to exit a C<given> block no longer produces a
+spurious warning like the following:
+(TBT)
Exiting given via last****@foo***** line 123
@@ -2580,6 +3146,9 @@
=end original
+On Windows, C<'.\foo'> and C<'..\foo'> were treated differently than
+C<'./foo'> and C<'../foo'> by C<do> and C<require> [RT #63492].
+(TBT)
=item *
@@ -2589,6 +3158,8 @@
=end original
+Assigning a format to a glob could corrupt the format; e.g.:
+(TBT)
*bar=*foo{FORMAT}; # foo format now bad
@@ -2602,6 +3173,10 @@
=end original
+Attempting to coerce a typeglob to a string or number could cause an
+assertion failure. The correct error message is now generated,
+C<Can't coerce GLOB to I<$type>>.
+(TBT)
=item *
@@ -2612,6 +3187,9 @@
=end original
+Under C<use filetest 'access'>, C<-x> was using the wrong access mode. This
+has been fixed [RT #49003].
+(TBT)
=item *
@@ -2622,6 +3200,9 @@
=end original
+C<length> on a tied scalar that returned a Unicode value would not be
+correct the first time. This has been fixed.
+(TBT)
=item *
@@ -2632,6 +3213,9 @@
=end original
+Using an array C<tie> inside in array C<tie> could SEGV. This has been
+fixed. [RT #51636]
+(TBT)
=item *
@@ -2642,6 +3226,9 @@
=end original
+A race condition inside C<PerlIOStdio_close()> has been identified and
+fixed. This used to cause various threading issues, including SEGVs.
+(TBT)
=item *
@@ -2653,6 +3240,10 @@
=end original
+In C<unpack>, the use of C<()> groups in scalar context was internally
+placing a list on the interpreter's stack, which manifested in various
+ways, including SEGVs. This is now fixed [RT #50256].
+(TBT)
=item *
@@ -2663,6 +3254,9 @@
=end original
+Magic was called twice in C<substr>, C<\&$x>, C<tie $x, $m> and C<chop>.
+These have all been fixed.
+(TBT)
=item *
@@ -2675,6 +3269,11 @@
=end original
+A 5.10.0 optimisation to clear the temporary stack within the implicit
+loop of C<s///ge> has been reverted, as it turned out to be the cause of
+obscure bugs in seemingly unrelated parts of the interpreter [commit
+ef0d4e17921ee3de].
+(TBT)
=item *
@@ -2684,6 +3283,8 @@
=end original
+The line numbers for warnings inside C<elsif> are now correct.
+(TBT)
=item *
@@ -2694,6 +3295,9 @@
=end original
+The C<..> operator now works correctly with ranges whose ends are at or
+close to the values of the smallest and largest integers.
+(TBT)
=item *
@@ -2704,6 +3308,9 @@
=end original
+C<binmode STDIN, ':raw'> could lead to segmentation faults on some platforms.
+This has been fixed [RT #54828].
+(TBT)
=item *
@@ -2714,6 +3321,9 @@
=end original
+An off-by-one error meant that C<index $str, ...> was effectively being
+executed as C<index "$str\0", ...>. This has been fixed [RT #53746].
+(TBT)
=item *
@@ -2724,6 +3334,9 @@
=end original
+Various leaks associated with named captures in regexes have been fixed
+[RT #57024].
+(TBT)
=item *
@@ -2734,6 +3347,9 @@
=end original
+A weak reference to a hash would leak. This was affecting C<DBI>
+[RT #56908].
+(TBT)
=item *
@@ -2743,6 +3359,8 @@
=end original
+Using (?|) in a regex could cause a segfault [RT #59734].
+(TBT)
=item *
@@ -2752,6 +3370,8 @@
=end original
+Use of a UTF-8 C<tr//> within a closure could cause a segfault [RT #61520].
+(TBT)
=item *
@@ -2762,6 +3382,9 @@
=end original
+Calling C<sv_chop()> or otherwise upgrading an SV could result in an
+unaligned 64-bit access on the SPARC architecture [RT #60574].
+(TBT)
=item *
@@ -2773,6 +3396,10 @@
=end original
+In the 5.10.0 release, C<inc_version_list> would incorrectly list
+C<5.10.*> after C<5.8.*>; this affected the C<@INC> search order
+[RT #67628].
+(TBT)
=item *
@@ -2783,6 +3410,9 @@
=end original
+In 5.10.0, C<pack "a*", $tainted_value> returned a non-tainted value
+[RT #52552].
+(TBT)
=item *
@@ -2794,6 +3424,10 @@
=end original
+In 5.10.0, C<printf> and C<sprintf> could produce the fatal error
+C<panic: utf8_mg_pos_cache_update> when printing UTF-8 strings
+[RT #62666].
+(TBT)
=item *
@@ -2804,6 +3438,9 @@
=end original
+In the 5.10.0 release, a dynamically created C<AUTOLOAD> method might be
+missed (method cache issue) [RT #60220,60232].
+(TBT)
=item *
@@ -2814,6 +3451,9 @@
=end original
+In the 5.10.0 release, a combination of C<use feature> and C<//ee> could
+cause a memory leak [RT #63110].
+(TBT)
=item *
@@ -2827,6 +3467,12 @@
=end original
+C<-C> on the shebang (C<#!>) line is once more permitted if it is also
+specified on the command line. C<-C> on the shebang line used to be a
+silent no-op I<if> it was not also on the command line, so perl 5.10.0
+disallowed it, which broke some scripts. Now perl checks whether it is
+also on the command line and only dies if it is not [RT #67880].
+(TBT)
=item *
@@ -2837,6 +3483,9 @@
=end original
+In 5.10.0, certain types of re-entrant regular expression could crash,
+or cause the following assertion failure [RT #60508]:
+(TBT)
Assertion rx->sublen >= (s - rx->subbeg) + i failed
@@ -2860,6 +3509,11 @@
=end original
+This new fatal error occurs when the C routine C<Perl_sv_chop()> was
+passed a position that is not within the scalar's string buffer. This
+could be caused by buggy XS code, and at this point recovery is not
+possible.
+(TBT)
=item C<Can't locate package %s for the parents of %s>
@@ -2871,6 +3525,10 @@
=end original
+This warning has been removed. In general, it only got produced in
+conjunction with other warnings, and removing it allowed an ISA lookup
+optimisation to be added.
+(TBT)
=item C<v-string in use/require is non-portable>
@@ -2880,6 +3538,8 @@
=end original
+This warning has been removed.
+(TBT)
=item C<Deep recursion on subroutine "%s">
@@ -2891,6 +3551,10 @@
=end original
+It is now possible to change the depth threshold for this warning from the
+default of 100, by recompiling the F<perl> binary, setting the C
+pre-processor macro C<PERL_SUB_DEPTH_WARN> to the desired value.
+(TBT)
=back
@@ -2909,6 +3573,9 @@
=end original
+The J.R.R. Tolkien quotes at the head of C source file have been checked and
+proper citations added, thanks to a patch from Tom Christiansen.
+(TBT)
=item *
@@ -2920,6 +3587,10 @@
=end original
+C<vcroak()> now accepts a null first argument. In addition, a full audit
+was made of the "not NULL" compiler annotations, and those for several
+other internal functions were corrected.
+(TBT)
=item *
@@ -2931,6 +3602,10 @@
=end original
+New macros C<dSAVEDERRNO>, C<dSAVE_ERRNO>, C<SAVE_ERRNO>, C<RESTORE_ERRNO>
+have been added to formalise the temporary saving of the C<errno>
+variable.
+(TBT)
=item *
@@ -2941,6 +3616,9 @@
=end original
+The function C<Perl_sv_insert_flags> has been added to augment
+C<Perl_sv_insert>.
+(TBT)
=item *
@@ -2951,6 +3629,9 @@
=end original
+The function C<Perl_newSV_type(type)> has been added, equivalent to
+C<Perl_newSV()> followed by C<Perl_sv_upgrade(type)>.
+(TBT)
=item *
@@ -2961,6 +3642,9 @@
=end original
+The function C<Perl_newSVpvn_flags()> has been added, equivalent to
+C<Perl_newSVpvn()> and then performing the action relevant to the flag.
+(TBT)
=begin original
@@ -2968,6 +3652,8 @@
=end original
+Two flag bits are currently supported.
+(TBT)
=over 4
@@ -2981,6 +3667,10 @@
=end original
+This will call C<SvUTF8_on()> for you. (Note that this does not convert an
+sequence of ISO 8859-1 characters to UTF-8). A wrapper, C<newSVpvn_utf8()>
+is available for this.
+(TBT)
=item C<SVs_TEMP>
@@ -2990,6 +3680,8 @@
=end original
+Call C<sv_2mortal()> on the new SV.
+(TBT)
=back
@@ -2999,6 +3691,8 @@
=end original
+There is also a wrapper that takes constant strings, C<newSVpvs_flags()>.
+(TBT)
=item *
@@ -3009,6 +3703,9 @@
=end original
+The function C<Perl_croak_xs_usage> has been added as a wrapper to
+C<Perl_croak>.
+(TBT)
=item *
@@ -3019,6 +3716,9 @@
=end original
+The functions C<PerlIO_find_layer> and C<PerlIO_list_alloc> are now
+exported.
+(TBT)
=item *
@@ -3031,6 +3731,11 @@
=end original
+C<PL_na> has been exterminated from the core code, replaced by local STRLEN
+temporaries, or C<*_nolen()> calls. Either approach is faster than C<PL_na>,
+which is a pointer deference into the interpreter structure under ithreads,
+and a global variable otherwise.
+(TBT)
=item *
@@ -3042,6 +3747,10 @@
=end original
+C<Perl_mg_free()> used to leave freed memory accessible via SvMAGIC() on
+the scalar. It now updates the linked list to remove each piece of magic
+as it is freed.
+(TBT)
=item *
@@ -3053,6 +3762,10 @@
=end original
+Under ithreads, the regex in C<PL_reg_curpm> is now reference counted. This
+eliminates a lot of hackish workarounds to cope with it not being reference
+counted.
+(TBT)
=item *
@@ -3063,6 +3776,9 @@
=end original
+C<Perl_mg_magical()> would sometimes incorrectly turn on C<SvRMAGICAL()>.
+This has been fixed.
+(TBT)
=item *
@@ -3074,6 +3790,10 @@
=end original
+The I<public> IV and NV flags are now not set if the string value has
+trailing "garbage". This behaviour is consistent with not setting the
+public IV or NV flags if the value is out of range for the type.
+(TBT)
=item *
@@ -3085,6 +3805,10 @@
=end original
+SV allocation tracing has been added to the diagnostics enabled by C<-Dm>.
+The tracing can alternatively output via the C<PERL_MEM_LOG> mechanism, if
+that was enabled when the F<perl> binary was compiled.
+(TBT)
=item *
@@ -3096,6 +3820,10 @@
=end original
+Uses of C<Nullav>, C<Nullcv>, C<Nullhv>, C<Nullop>, C<Nullsv> etc have been
+replaced by C<NULL> in the core code, and non-dual-life modules, as C<NULL>
+is clearer to those unfamiliar with the core code.
+(TBT)
=item *
@@ -3110,6 +3838,13 @@
=end original
+A macro C<MUTABLE_PTR(p)> has been added, which on (non-pedantic) gcc will
+not cast away C<const>, returning a C<void *>. Macros C<MUTABLE_SV(av)>,
+C<MUTABLE_SV(cv)> etc build on this, casting to C<AV *> etc without
+casting away C<const>. This allows proper compile-time auditing of
+C<const> correctness in the core, and helped picked up some errors (now
+fixed).
+(TBT)
=item *
@@ -3120,6 +3855,9 @@
=end original
+Macros C<mPUSHs()> and C<mXPUSHs()> have been added, for pushing SVs on the
+stack and mortalizing them.
+(TBT)
=item *
@@ -3130,6 +3868,9 @@
=end original
+Use of the private structure C<mro_meta> has changed slightly. Nothing
+outside the core should be accessing this directly anyway.
+(TBT)
=item *
@@ -3142,6 +3883,11 @@
=end original
+A new tool, C<Porting/expand-macro.pl> has been added, that allows you
+to view how a C preprocessor macro would be expanded when compiled.
+This is handy when trying to decode the macro hell that is the perl
+guts.
+(TBT)
=back
@@ -3155,6 +3901,8 @@
=end original
+Many modules updated from CPAN incorporate new tests.
+(TBT)
=begin original
@@ -3165,6 +3913,11 @@
=end original
+Several tests that have the potential to hang forever if they fail now
+incorporate a "watchdog" functionality that will kill them after a timeout,
+which helps ensure that C<make test> and C<make test_harness> run to
+completion automatically. (Jerry Hedden).
+(TBT)
=begin original
@@ -3172,6 +3925,8 @@
=end original
+Some core-specific tests have been added:
+(TBT)
=over 4
@@ -3183,6 +3938,8 @@
=end original
+Check that the debugger can retain source lines from C<eval>.
+(TBT)
=item t/io/perlio_fail.t
@@ -3192,6 +3949,8 @@
=end original
+Check that bad layers fail.
+(TBT)
=item t/io/perlio_leaks.t
@@ -3201,6 +3960,8 @@
=end original
+Check that PerlIO layers are not leaking.
+(TBT)
=item t/io/perlio_open.t
@@ -3210,6 +3971,8 @@
=end original
+Check that certain special forms of open work.
+(TBT)
=item t/io/perlio.t
@@ -3219,6 +3982,8 @@
=end original
+General PerlIO tests.
+(TBT)
=item t/io/pvbm.t
@@ -3229,6 +3994,9 @@
=end original
+Check that there is no unexpected interaction between the internal types
+C<PVBM> and C<PVGV>.
+(TBT)
=item t/mro/package_aliases.t
@@ -3238,6 +4006,8 @@
=end original
+Check that mro works properly in the presence of aliased packages.
+(TBT)
=item t/op/dbm.t
@@ -3247,6 +4017,8 @@
=end original
+Tests for C<dbmopen> and C<dbmclose>.
+(TBT)
=item t/op/index_thr.t
@@ -3256,6 +4028,8 @@
=end original
+Tests for the interaction of C<index> and threads.
+(TBT)
=item t/op/pat_thr.t
@@ -3265,6 +4039,8 @@
=end original
+Tests for the interaction of esoteric patterns and threads.
+(TBT)
=item t/op/qr_gc.t
@@ -3274,6 +4050,8 @@
=end original
+Test that C<qr> doesn't leak.
+(TBT)
=item t/op/reg_email_thr.t
@@ -3283,6 +4061,8 @@
=end original
+Tests for the interaction of regex recursion and threads.
+(TBT)
=item t/op/regexp_qr_embed_thr.t
@@ -3292,6 +4072,8 @@
=end original
+Tests for the interaction of patterns with embedded C<qr//> and threads.
+(TBT)
=item t/op/regexp_unicode_prop.t
@@ -3301,6 +4083,8 @@
=end original
+Tests for Unicode properties in regular expressions.
+(TBT)
=item t/op/regexp_unicode_prop_thr.t
@@ -3310,6 +4094,8 @@
=end original
+Tests for the interaction of Unicode properties and threads.
+(TBT)
=item t/op/reg_nc_tie.t
@@ -3319,6 +4105,8 @@
=end original
+Test the tied methods of C<Tie::Hash::NamedCapture>.
+(TBT)
=item t/op/reg_posixcc.t
@@ -3328,6 +4116,8 @@
=end original
+Check that POSIX character classes behave consistently.
+(TBT)
=item t/op/re.t
@@ -3337,6 +4127,8 @@
=end original
+Check that exportable C<re> functions in F<universal.c> work.
+(TBT)
=item t/op/setpgrpstack.t
@@ -3346,6 +4138,8 @@
=end original
+Check that C<setpgrp> works.
+(TBT)
=item t/op/substr_thr.t
@@ -3355,6 +4149,8 @@
=end original
+Tests for the interaction of C<substr> and threads.
+(TBT)
=item t/op/upgrade.t
@@ -3364,6 +4160,8 @@
=end original
+Check that upgrading and assigning scalars works.
+(TBT)
=item t/uni/lex_utf8.t
@@ -3373,6 +4171,8 @@
=end original
+Check that Unicode in the lexer works.
+(TBT)
=item t/uni/tie.t
@@ -3382,6 +4182,8 @@
=end original
+Check that Unicode and C<tie> work.
+(TBT)
=back
@@ -3396,6 +4198,9 @@
=end original
+This is a list of some significant unfixed bugs, which are regressions
+from either 5.10.0 or 5.8.x.
+(TBT)
=over 4
@@ -3410,6 +4215,11 @@
=end original
+C<List::Util::first> misbehaves in the presence of a lexical C<$_>
+(typically introduced by C<my $_> or implicitly by C<given>). The variable
+which gets set for each iteration is the package variable C<$_>, not the
+lexical C<$_> [RT #67694].
+(TBT)
=begin original
@@ -3418,6 +4228,9 @@
=end original
+A similar issue may occur in other modules that provide functions which
+take a block as their first argument, like
+(TBT)
foo { ... $_ ...} list
@@ -3430,6 +4243,9 @@
=end original
+The C<charnames> pragma may generate a run-time error when a regex is
+interpolated [RT #56444]:
+(TBT)
use charnames ':full';
my $r1 = qr/\N{THAI CHARACTER SARA I}/;
@@ -3442,6 +4258,8 @@
=end original
+A workaround is to generate the character outside of the regex:
+(TBT)
my $a = "\N{THAI CHARACTER SARA I}";
my $r1 = qr/$a/;
@@ -3455,6 +4273,9 @@
=end original
+Some regexes may run much more slowly when run in a child thread compared
+with the thread the pattern was compiled into [RT #55600].
+(TBT)
=back
@@ -3469,6 +4290,8 @@
=end original
+The following items are now deprecated.
+(TBT)
=over 4
@@ -3484,6 +4307,12 @@
=end original
+C<Switch> is buggy and should be avoided. From perl 5.11.0 onwards, it is
+intended that any use of the core version of this module will emit a
+warning, and that the module will eventually be removed from the core
+(probably in perl 5.14.0). See L<perlsyn/"Switch statements"> for its
+replacement.
+(TBT)
=item *
@@ -3494,6 +4323,9 @@
=end original
+C<suidperl> will be removed in 5.12.0. This provides a mechanism to
+emulate setuid permission bits on systems that don't support it properly.
+(TBT)
=back
@@ -3507,6 +4339,8 @@
=end original
+Some of the work in this release was funded by a TPF grant.
+(TBT)
=begin original
@@ -3517,6 +4351,11 @@
=end original
+Nicholas Clark officially retired from maintenance pumpking duty at the
+end of 2008; however in reality he has put much effort in since then to
+help get 5.10.1 into a fit state to be released, including writing a
+considerable chunk of this perldelta.
+(TBT)
=begin original
@@ -3525,6 +4364,9 @@
=end original
+Steffen Mueller and David Golden in particular helped getting CPAN modules
+polished and synchronised with their in-core equivalents.
+(TBT)
=begin original
@@ -3533,6 +4375,9 @@
=end original
+Craig Berry was tireless in getting maint to run under VMS, no matter how
+many times we broke it for him.
+(TBT)
=begin original
@@ -3541,6 +4386,9 @@
=end original
+The other core committers contributed most of the changes, and applied most
+of the patches sent in by the hundreds of contributors listed in F<AUTHORS>.
+(TBT)
=begin original
@@ -3548,6 +4396,8 @@
=end original
+(Sorry to all the people I haven't mentioned by name).
+(TBT)
=begin original
@@ -3556,6 +4406,9 @@
=end original
+Finally, thanks to Larry Wall, without whom none of this would be
+necessary.
+(TBT)
=head1 Reporting Bugs
@@ -3570,6 +4423,11 @@
=end original
+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://rt.perl.org/perlbug/ . There may also be
+information at http://www.perl.org/ , the Perl Home Page.
+(TBT)
=begin original
@@ -3581,6 +4439,12 @@
=end original
+If you believe you have an unreported bug, please run the B<perlbug>
+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 C<perl -V>, will be sent off to perlb****@perl***** to be
+analysed by the Perl porting team.
+(TBT)
=begin original
@@ -3596,6 +4460,16 @@
=end original
+If the bug you are reporting has security implications, which make it
+inappropriate to send to a publicly archived mailing list, then please send
+it to perl5****@perl*****. This points to a closed subscription
+unarchived mailing list, which includes all the core committers, who be able
+to help assess the impact of issues, figure out a resolution, and help
+co-ordinate the release of patches to mitigate or fix the problem across all
+platforms on which Perl is supported. Please only use this address for
+security issues in the Perl core, not for modules independently
+distributed on CPAN.
+(TBT)
=head1 SEE ALSO