At 09:48 AM 6/6/02 -0700, Mark Anderson wrote: >I came across a reference to lvalue(s) in > perldoc -f substr >I then searched perldoc for "lvalue", and looked at each reference in: > perldoc perldiag > perldoc perltoc > perldoc perlfunc > perldoc perlsub > perldoc perlop > perldoc perlguts > perldoc perlsyn > perldoc perlfaq7 > perldoc perlfaq4 > perldoc perlref > >It's obvious to me that lvalue is a commonly understood term among perl >gurus, but I had to return my Llama to the Llibrary so I can't see if it's >explained there, but I'm confident/hopeful that someone out there can either >fair-use an explaination from their Llama, or even better provide an English >explanation.
It's a common computing term: http://nightflight.com/foldoc-bin/foldoc.cgi?query=lvalue. For some reason they don't have a definition for 'rvalue', which is something that can appear on the right hand side of an assignment. Probably just too simple (but see, e.g., http://cplus.about.com/library/glossary/bldef-rvalue.htm). What's special about Perl is that it makes lvalues out of certain things which other languages don't. For instance, substr(). And the ternary operator (?:). That usually blows a few minds in beginners' classes. -- Peter Scott Pacific Systems Design Technologies http://www.perldebugged.com/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
