# same terms as Perl itself. If in doubt,
# write to mjd-perl-memoize+@plover.com for a license.
#
-# Version 1.00 $Revision: 1.18 $ $Date: 2001/06/24 17:16:47 $
+# Version 1.01 $Revision: 1.18 $ $Date: 2001/06/24 17:16:47 $
package Memoize;
-$VERSION = '1.00';
+$VERSION = '1.01_02';
# Compile-time constants
sub SCALAR () { 0 }
$wrapper # Return just memoized version
}
-use warnings::register;
-
# This function tries to load a tied hash class and tie the hash to it.
sub _my_tie {
my ($context, $hash, $options) = @_;
return unless defined $shortopt && $shortopt eq 'TIE';
carp("TIE option to memoize() is deprecated; use HASH instead")
- if warnings::enabled('deprecated');
+ if $^W;
my @args = ref $fullopt ? @$fullopt : ();
shift @args;
# Otherwise, we cached an array containing the returned list:
return @$val;
} else {
- my $q = $cache->{$argstr} = [&{$info->{U}}(@_)];
- @$q;
+ my @q = &{$info->{U}}(@_);
+ $cache->{$argstr} = $info->{O}{LIST_CACHE} eq 'MERGE' ? $q [0] : \@q;
+ @q;
}
} else {
croak "Internal error \#42; context was neither LIST nor SCALAR\n";
=head1 SYNOPSIS
- # This is the documentation for Memoize 1.00
+ # This is the documentation for Memoize 1.01
use Memoize;
memoize('slow_function');
slow_function(arguments); # Is faster than it was before
Perl Journal, issue #13. (This article is also included in the
Memoize distribution as `article.html'.)
-My upcoming book will discuss memoization (and many other fascinating
-topics) in tremendous detail. It will be published by Morgan Kaufmann
-in 2002, possibly under the title I<Perl Advanced Techniques
-Handbook>. It will also be available on-line for free. For more
-information, visit http://perl.plover.com/book/ .
+The author's book I<Higher Order Perl> (2005, ISBN 1558607013, published
+by Morgan Kaufmann) discusses memoization (and many other fascinating
+topics) in tremendous detail. It will also be available on-line for free.
+For more information, visit http://perl.plover.com/book/ .
To join a mailing list for announcements about C<Memoize>, send an
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