Doc tweaks.

[p5sagit/p5-mst-13.2.git] / pod / perldata.pod

diff --git a/pod/perldata.pod b/pod/perldata.pod
index f2484db..8e2e177 100644 (file)
--- a/pod/perldata.pod
+++ b/pod/perldata.pod
@@ -636,7 +636,7 @@ The previous assignments are exactly equivalent to
     ($days[3], $days[4], $days[5]) = qw/Wed Thu Fri/;
     ($colors{'red'}, $colors{'blue'}, $colors{'green'})
                    = (0xff0000, 0x0000ff, 0x00ff00);
-    ($folks[0], $folks[-1]) = ($folks[0], $folks[-1]);
+    ($folks[0], $folks[-1]) = ($folks[-1], $folks[0]);
 
 Since changing a slice changes the original array or hash that it's
 slicing, a C<foreach> construct will alter some--or even all--of the
@@ -759,6 +759,11 @@ that must be passed around, as in the following example:
         # $f implicitly closed here
     }
 
+Note that if an initialized scalar variable is used instead the
+result is different: C<my $fh='zzz'; open($fh, ...)> is equivalent
+to C<open( *{'zzz'}, ...)>.
+C<use strict 'refs'> forbids such practice.
+
 Another way to create anonymous filehandles is with the Symbol
 module or with the IO::Handle module and its ilk.  These modules
 have the advantage of not hiding different types of the same name