Hash lookup of constant strings optimization:

Introduce SvREADONLY && SvFAKE to flag an SV which has SvPVX pointing
to string table (as per sharepvn). Add newSV_pvn_share to create such
a thing. Make hv.c compare addresses of strings and skip string compare
if equal. Make method_named and helem ops use these shared-string SVs
when arg is constant. Make keys op return shared-string SVs (less clearly
a win).

p4raw-id: //depot/perl@7016

1 files changed, 5 insertions, 5 deletions

diff --git a/pod/perlintern.pod b/pod/perlintern.pod
index 8afabd90f0..11d9385181 100644
--- a/pod/perlintern.pod
+++ b/pod/perlintern.pod
@@ -1,13 +1,13 @@
 =head1 NAME
 
-perlintern - autogenerated documentation of purely B<internal> 
+perlintern - autogenerated documentation of purely B<internal>
 		 Perl functions
 
 =head1 DESCRIPTION
 
-This file is the autogenerated documentation of functions in the 
+This file is the autogenerated documentation of functions in the
 Perl interpreter that are documented using Perl's internal documentation
-format but are not marked as part of the Perl API. In other words, 
+format but are not marked as part of the Perl API. In other words,
 B<they are not for use in extensions>!
 
 =over 8
@@ -31,8 +31,8 @@ Found in file gv.c
 
 =head1 AUTHORS
 
-The autodocumentation system was originally added to the Perl core by 
-Benjamin Stuhl. Documentation is by whoever was kind enough to 
+The autodocumentation system was originally added to the Perl core by
+Benjamin Stuhl. Documentation is by whoever was kind enough to
 document their functions.
 
 =head1 SEE ALSO