For now reword the sysread/syswrite description to

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

diff --git a/pod/perltie.pod b/pod/perltie.pod
index 72288a0..3665f04 100644 (file)
--- a/pod/perltie.pod
+++ b/pod/perltie.pod
@@ -361,7 +361,7 @@ C<$self-E<gt>{ELEMSIZE}> spaces only, it does not exist:
 
 Delete the element at index I<key> from the tied array I<this>.
 
-In our example, a deleted item is C<$self->{ELEMSIZE}> spaces:
+In our example, a deleted item is C<$self-E<gt>{ELEMSIZE}> spaces:
 
     sub DELETE {
       my $self  = shift;
@@ -1076,6 +1076,14 @@ source code to MLDBM.
 Tied filehandles are still incomplete.  sysopen(), truncate(),
 flock(), fcntl(), stat() and -X can't currently be trapped.
 
+The bucket usage information provided by C<scalar(%hash)> is not
+available.  If C<%hash> is tied, this will currently result in a
+fatal error.
+
+Counting the number of entries in a hash via C<scalar(keys(%hash))> or
+C<scalar(values(%hash)>) is inefficient since it needs to iterate
+through all the entries with FIRSTKEY/NEXTKEY.
+
 =head1 AUTHOR
 
 Tom Christiansen