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=encoding euc-jp |
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=head1 NAME |
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=begin original |
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perl583delta - what is new for perl v5.8.3 |
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=end original |
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perl v5.8.3 での変更点 |
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=head1 DESCRIPTION |
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|
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=begin original |
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|
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This document describes differences between the 5.8.2 release and |
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the 5.8.3 release. |
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=end original |
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|
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このドキュメントは 5.8.2 リリースと 5.8.3 リリースの変更点を記述しています。 |
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|
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=begin original |
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|
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If you are upgrading from an earlier release such as 5.6.1, first read |
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the L<perl58delta>, which describes differences between 5.6.0 and |
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5.8.0, and the L<perl581delta> and L<perl582delta>, which describe differences |
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between 5.8.0, 5.8.1 and 5.8.2 |
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|
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=end original |
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|
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もしそれよりも前のリリース, 例えば 5.6.1 等からアップデートするのなら、 |
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5.6.0 と 5.8.0 との違いが書かれている L<perl58delta> および、 |
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5.8.0, 5.8.1, 5.8.2 との違いが書かれている L<perl581delta>, |
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L<perl582delta> を読んでおいた方がよいでしょう。 |
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|
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=head1 Incompatible Changes |
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|
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(互換性のない変更) |
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|
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=begin original |
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|
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There are no changes incompatible with 5.8.2. |
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|
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=end original |
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|
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5.8.2 との互換性のない変更はありません。 |
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|
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=head1 Core Enhancements |
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|
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(Core の拡張) |
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|
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=begin original |
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|
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A C<SCALAR> method is now available for tied hashes. This is called when |
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a tied hash is used in scalar context, such as |
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|
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=end original |
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|
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|
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if (%tied_hash) { |
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... |
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} |
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|
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=begin original |
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|
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The old behaviour was that %tied_hash would return whatever would have been |
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returned for that hash before the hash was tied (so usually 0). The new |
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behaviour in the absence of a SCALAR method is to return TRUE if in the |
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middle of an C<each> iteration, and otherwise call FIRSTKEY to check if the |
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hash is empty (making sure that a subsequent C<each> will also begin by |
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calling FIRSTKEY). Please see L<perltie/SCALAR> for the full details and |
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caveats. |
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|
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=end original |
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|
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|
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=head1 Modules and Pragmata |
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(モジュールとプラグマ) |
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|
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=over 4 |
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=item CGI |
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|
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=item Cwd |
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|
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=item Digest |
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|
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=item Digest::MD5 |
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|
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=item Encode |
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|
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=item File::Spec |
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|
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=item FindBin |
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|
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=begin original |
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A function C<again> is provided to resolve problems where modules in different |
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directories wish to use FindBin. |
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=end original |
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|
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|
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=item List::Util |
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|
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=begin original |
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|
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You can now weaken references to read only values. |
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|
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=end original |
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|
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=item Math::BigInt |
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|
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=item PodParser |
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|
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=item Pod::Perldoc |
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|
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=item POSIX |
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|
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=item Unicode::Collate |
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|
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=item Unicode::Normalize |
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|
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=item Test::Harness |
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|
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=item threads::shared |
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=begin original |
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C<cond_wait> has a new two argument form. C<cond_timedwait> has been added. |
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|
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=end original |
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|
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|
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=back |
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|
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=head1 Utility Changes |
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|
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(ツールの変更) |
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=begin original |
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C<find2perl> now assumes C<-print> as a default action. Previously, it |
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needed to be specified explicitly. |
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=end original |
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|
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=begin original |
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|
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A new utility, C<prove>, makes it easy to run an individual regression test |
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at the command line. C<prove> is part of Test::Harness, which users of earlier |
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Perl versions can install from CPAN. |
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|
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=end original |
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=head1 New Documentation |
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(新しいドキュメント) |
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=begin original |
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The documentation has been revised in places to produce more standard manpages. |
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=end original |
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=begin original |
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|
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The documentation for the special code blocks (BEGIN, CHECK, INIT, END) |
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has been improved. |
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=end original |
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=head1 Installation and Configuration Improvements |
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=begin original |
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Perl now builds on OpenVMS I64 |
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=end original |
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=head1 Selected Bug Fixes |
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=begin original |
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Using substr() on a UTF8 string could cause subsequent accesses on that |
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string to return garbage. This was due to incorrect UTF8 offsets being |
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cached, and is now fixed. |
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=end original |
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=begin original |
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join() could return garbage when the same join() statement was used to |
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process 8 bit data having earlier processed UTF8 data, due to the flags |
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on that statement's temporary workspace not being reset correctly. This |
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is now fixed. |
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=end original |
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=begin original |
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C<$a .. $b> will now work as expected when either $a or $b is C<undef> |
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=end original |
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=begin original |
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Using Unicode keys with tied hashes should now work correctly. |
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=end original |
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=begin original |
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Reading $^E now preserves $!. Previously, the C code implementing $^E |
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did not preserve C<errno>, so reading $^E could cause C<errno> and therefore |
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C<$!> to change unexpectedly. |
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=end original |
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=begin original |
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Reentrant functions will (once more) work with C++. 5.8.2 introduced a bugfix |
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which accidentally broke the compilation of Perl extensions written in C++ |
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=end original |
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=head1 New or Changed Diagnostics |
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=begin original |
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The fatal error "DESTROY created new reference to dead object" is now |
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documented in L<perldiag>. |
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=end original |
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=head1 Changed Internals |
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=begin original |
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The hash code has been refactored to reduce source duplication. The |
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external interface is unchanged, and aside from the bug fixes described |
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above, there should be no change in behaviour. |
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=end original |
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=begin original |
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C<hv_clear_placeholders> is now part of the perl API |
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=end original |
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=begin original |
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Some C macros have been tidied. In particular macros which create temporary |
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local variables now name these variables more defensively, which should |
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avoid bugs where names clash. |
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=end original |
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=begin original |
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<signal.h> is now always included. |
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=end original |
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=head1 Configuration and Building |
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=begin original |
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C<Configure> now invokes callbacks regardless of the value of the variable |
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they are called for. Previously callbacks were only invoked in the |
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C<case $variable $define)> branch. This change should only affect platform |
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maintainers writing configuration hints files. |
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=end original |
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=head1 Platform Specific Problems |
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=begin original |
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The regression test ext/threads/shared/t/wait.t fails on early RedHat 9 |
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and HP-UX 10.20 due to bugs in their threading implementations. |
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RedHat users should see https://rhn.redhat.com/errata/RHBA-2003-136.html |
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and consider upgrading their glibc. |
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=end original |
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=head1 Known Problems |
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|
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=begin original |
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Detached threads aren't supported on Windows yet, as they may lead to |
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memory access violation problems. |
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=end original |
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=begin original |
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There is a known race condition opening scripts in C<suidperl>. C<suidperl> |
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is neither built nor installed by default, and has been deprecated since |
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perl 5.8.0. You are advised to replace use of suidperl with tools such |
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as sudo ( http://www.courtesan.com/sudo/ ) |
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|
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=end original |
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|
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=begin original |
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|
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We have a backlog of unresolved bugs. Dealing with bugs and bug reports |
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is unglamorous work; not something ideally suited to volunteer labour, |
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but that is all that we have. |
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|
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=end original |
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|
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=begin original |
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|
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The perl5 development team are implementing changes to help address this |
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problem, which should go live in early 2004. |
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|
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=end original |
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=head1 Future Directions |
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=begin original |
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Code freeze for the next maintenance release (5.8.4) is on March 31st 2004, |
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with release expected by mid April. Similarly 5.8.5's freeze will be at |
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the end of June, with release by mid July. |
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=end original |
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|
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=head1 Obituary |
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(お悔やみ) |
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=begin original |
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|
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Iain 'Spoon' Truskett, Perl hacker, author of L<perlreref> and |
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contributor to CPAN, died suddenly on 29th December 2003, aged 24. |
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He will be missed. |
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|
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=end original |
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Perl ハッカーであり、L<perlreref> の著者であり、CPAN の |
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貢献者である Iain 'Spoon' Truskett は 2003 年 12 月 29 日、24 歳で |
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急死しました。お悔やみを申し上げます。 |
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|
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=head1 Reporting Bugs |
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|
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=begin original |
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|
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If you find what you think is a bug, you might check the articles |
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recently posted to the comp.lang.perl.misc newsgroup and the perl |
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bug database at http://bugs.perl.org. There may also be |
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information at http://www.perl.org, the Perl Home Page. |
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|
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=end original |
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|
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もしバグと思われるものが見つかったら、 comp.lang.perl.misc ニュースグループに |
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最近投稿された記事や http://bugs.perl.org にある perl バグデータベースを |
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確認してください。 |
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Perl ホームページ、http://www.perl.org にも情報があります。 |
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|
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=begin original |
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|
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If you believe you have an unreported bug, please run the B<perlbug> |
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program included with your release. Be sure to trim your bug down |
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to a tiny but sufficient test case. Your bug report, along with the |
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output of C<perl -V>, will be sent off to perlbug@perl.org to be |
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analysed by the Perl porting team. You can browse and search |
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the Perl 5 bugs at http://bugs.perl.org/ |
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|
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=end original |
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|
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もしまだ報告されていないバグだと確信したら、そのリリースに含まれている |
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perlbug プログラムをを実行してください。 |
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バグの再現スクリプトを十分小さく、しかし有効なコードに切りつめることを |
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意識してください。バグレポートは perl -V の出力と一緒に |
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perlbug@perl.org に送られ Perl porting チームによって解析されます。 |
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Perl 5 のバグについては http://bugs.perl.org/ で閲覧及び |
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検索することができます。 |
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|
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=head1 SEE ALSO |
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|
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=begin original |
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|
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The F<Changes> file for exhaustive details on what changed. |
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|
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=end original |
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|
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F<Changes> ファイルに変更点の完全な詳細があります。 |
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|
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=begin original |
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|
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The F<INSTALL> file for how to build Perl. |
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|
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=end original |
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|
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F<INSTALL> ファイルに Perl のビルド方法があります。 |
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|
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=begin original |
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|
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The F<README> file for general stuff. |
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|
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=end original |
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|
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F<README> ファイルに一般的なことがあります。 |
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|
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=begin original |
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|
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The F<Artistic> and F<Copying> files for copyright information. |
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|
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=end original |
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|
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F<Artistic> 及び F<Copying> ファイルに著作権情報があります。 |
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|
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=cut |
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|
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=begin meta |
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|
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Translate: Kentaro Shirakata <argrath@ub32.org> |
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License: Same as Perl |
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|
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=end meta |
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