diff options
Diffstat (limited to 'pod/perldelta.pod')
| -rw-r--r-- | pod/perldelta.pod | 49 |
1 files changed, 10 insertions, 39 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index bfaeedcc11..ab5cde38ff 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -79,15 +79,6 @@ See the F<INSTALL> file for information on how to enable this option. As a disincentive to casual use of this advanced feature, there is no C<use English> long name for this variable. -=item $^S - -The status returned by the last pipe close, back-tick (C<``>) command, or -system() operator, in the native system format. On UNIX and UNIX-like -systems, C<$^S> is a synonym for C<$?>. Elsewhere, C<$^S> can be used to -determine aspects of child status that are system-specific. Check C<$^O> -before using this variable. (Mnemonic: System-Specific Subprocess Status. -Also known as $SYSTEM_CHILD_STATUS if you C<use English>.) - =back =head2 New and Changed Built-in Functions @@ -277,34 +268,6 @@ C<VERSION> form of C<use>. # implies: A->VERSION(1.2); -=item class() - -C<class> returns the class name of its object. - -=item is_instance() - -C<is_instance> returns true if its object is an instance of some -class, false if its object is the class (package) itself. Example - - A->is_instance(); # False - - $var = 'A'; - $var->is_instance(); # False - - $ref = bless [], 'A'; - $ref->is_instance(); # True - -This can be useful for methods that wish to easily distinguish -whether they were invoked as class or as instance methods. - - sub some_meth { - my $classname = shift; - if ($classname->is_instance()) { - die "unexpectedly called as instance not class method"; - } - ..... - } - =back B<NOTE:> C<can> directly uses Perl's internal code for method lookup, and @@ -379,7 +342,7 @@ a fixed value are now inlined (e.g. C<sub PI () { 3.14159 }>). =head1 Pragmata -Three new pragmatic modules exist: +Four new pragmatic modules exist: =over @@ -416,6 +379,15 @@ See L<perllocale> for more information. Disable unsafe opcodes, or any named opcodes, when compiling Perl code. +=item use vmsish + +Enable VMS-specific language features. Currently, there are three +VMS-specific feature available: 'status', which makes C<$?> and +C<system> return genuine VMS status values instead of emulating POSIX; +'exit', which makes C<exit> take a genuine VMS status value instead of +assuming that C<exit 1> is an error; and 'time', which makes all times +relative to the local time zone, in the VMS tradition. + =back =head1 Modules @@ -476,7 +448,6 @@ alphabetically: ExtUtils/Embed.pm Utilities for embedding Perl in C programs ExtUtils/testlib.pm Fixes up @INC to use just-built extension - Fatal.pm Make do-or-die equivalents of functions FindBin.pm Find path of currently executing program Class/Template.pm Structure/member template builder |