use less; # These are all UNIMPLEMENTED! use less 'CPU'; use less 'memory'; use less 'time'; use less 'disk'; use less 'fat';# great with "use locale";
Currently unimplemented, this pragma is intended to someday give hints to the compiler, code-generator, or interpreter to enable certain trade-offs.
It is not an error to ask to use less of something that Perl doesn't know how to make less of right now.