Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re^5: Shouldn't references be readonly?

by hippo (Bishop)
on Aug 05, 2020 at 22:07 UTC ( [id://11120374]=note: print w/replies, xml ) Need Help??


in reply to Re^4: Shouldn't references be readonly?
in thread Shouldn't LITERAL references be readonly? (updated)

please explain the difference to your allegedly constant 1 .

Simple. Your constant a has a label. The label means that it uses a specific location to store the (constant) value. All refs to the label resolve to the location of the value and hence stringify to the same address.

By contrast 1 has no label. It is an actual literal. This does not require one specific location to store it and therefore refs to it will refer to different locations.


🦛

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://11120374]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (4)
As of 2024-03-28 15:56 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found