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1 | =head1 NAME |
| 2 | |
| 3 | perldelta - what is new for perl v5.9.3 |
| 4 | |
| 5 | =head1 DESCRIPTION |
| 6 | |
| 7 | This document describes differences between the 5.9.2 and the 5.9.3 |
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8 | development releases. See L<perl590delta>, L<perl591delta> and |
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9 | L<perl592delta> for the differences between 5.8.0 and 5.9.2. |
| 10 | |
| 11 | =head1 Incompatible Changes |
| 12 | |
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13 | =head2 Parsing of C<-f _> |
| 14 | |
| 15 | C<_> is now forced to be a bareword after a filetest operator. This solves |
| 16 | a number of misparsing issues when a global C<_> subroutine is defined. |
| 17 | |
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18 | =head1 Core Enhancements |
| 19 | |
| 20 | =head1 Modules and Pragmata |
| 21 | |
| 22 | =head1 Utility Changes |
| 23 | |
| 24 | =head1 Documentation |
| 25 | |
| 26 | =head1 Performance Enhancements |
| 27 | |
| 28 | =head1 Installation and Configuration Improvements |
| 29 | |
| 30 | =head1 Selected Bug Fixes |
| 31 | |
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32 | =head2 C<defined $$x> |
| 33 | |
| 34 | C<use strict "refs"> was ignoring taking a hard reference in an argument |
| 35 | to defined(), as in : |
| 36 | |
| 37 | use strict "refs"; |
| 38 | my $x = "foo"; |
| 39 | if (defined $$x) {...} |
| 40 | |
| 41 | This now correctly produces the run-time error C<Can't use string as a |
| 42 | SCALAR ref while "strict refs" in use>. (However, C<defined @$foo> and |
| 43 | C<defined %$foo> are still allowed. Those constructs are discouraged |
| 44 | anyway.) |
| 45 | |
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46 | =head1 New or Changed Diagnostics |
| 47 | |
| 48 | =head1 Changed Internals |
| 49 | |
| 50 | =head1 Known Problems |
| 51 | |
| 52 | =head2 Platform Specific Problems |
| 53 | |
| 54 | =head1 Reporting Bugs |
| 55 | |
| 56 | If you find what you think is a bug, you might check the articles |
| 57 | recently posted to the comp.lang.perl.misc newsgroup and the perl |
| 58 | bug database at http://bugs.perl.org/ . There may also be |
| 59 | information at http://www.perl.org/ , the Perl Home Page. |
| 60 | |
| 61 | If you believe you have an unreported bug, please run the B<perlbug> |
| 62 | program included with your release. Be sure to trim your bug down |
| 63 | to a tiny but sufficient test case. Your bug report, along with the |
| 64 | output of C<perl -V>, will be sent off to perlbug@perl.org to be |
| 65 | analysed by the Perl porting team. |
| 66 | |
| 67 | =head1 SEE ALSO |
| 68 | |
| 69 | The F<Changes> file for exhaustive details on what changed. |
| 70 | |
| 71 | The F<INSTALL> file for how to build Perl. |
| 72 | |
| 73 | The F<README> file for general stuff. |
| 74 | |
| 75 | The F<Artistic> and F<Copying> files for copyright information. |
| 76 | |
| 77 | =cut |
projects / p5sagit/p5-mst-13.2.git / blame