X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pod%2Fperlvar.pod;h=3b9ed060afc1adb05a01f7fa8bf95bf04189a65a;hb=71f882da828ecd892a162839f27e4625d69023fb;hp=a4e889562ea515755f9fe0be55a0195a933e5a26;hpb=5b88253beb15ba0b9f2b2ef15037de4950b82796;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/pod/perlvar.pod b/pod/perlvar.pod
index a4e8895..3b9ed06 100644
--- a/pod/perlvar.pod
+++ b/pod/perlvar.pod
@@ -883,8 +883,14 @@ subscripting and when evaluating the index() and substr() functions.
 
 As of release 5 of Perl, assignment to C<$[> is treated as a compiler
 directive, and cannot influence the behavior of any other file.
+(That's why you can only assign compile-time constants to it.)
 Its use is highly discouraged.
 
+Note that, unlike other compile-time directives (such as L<strict>),
+assignment to $[ can be seen from outer lexical scopes in the same file.
+However, you can use local() on it to strictly bound its value to a
+lexical block.
+
 =item $]
 
 The version + patchlevel / 1000 of the Perl interpreter.  This variable
@@ -1117,9 +1123,10 @@ B<-t> or B<-TU>).  This variable is read-only.
 
 =item ${^UNICODE}
 
-Reflects certain Unicode settings of Perl.  See L<perlrun> for more
-information about the possible values. This variable is set during
-Perl startup and thereafter read-only.
+Reflects certain Unicode settings of Perl.  See L<perlrun>
+documentation for the C<-C> switch for more information about
+the possible values. This variable is set during Perl startup
+and is thereafter read-only.
 
 =item $PERL_VERSION
 
@@ -1343,6 +1350,10 @@ this:
 
 See L<POSIX>.
 
+The delivery policy of signals changed in Perl 5.8.0 from immediate
+(also known as "unsafe") to deferred, also known as "safe signals".
+See L<perlipc> for more information.
+
 Certain internal hooks can be also set using the %SIG hash.  The
 routine indicated by C<$SIG{__WARN__}> is called when a warning message is
 about to be printed.  The warning message is passed as the first