Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re: Ampersands and sub speed

by cees (Curate)
on Oct 14, 2005 at 21:19 UTC ( [id://500373]=note: print w/replies, xml ) Need Help??


in reply to Ampersands and sub speed

Make sure you know what you are doing when adding & to the front of a function call. It can have unintended consequences if you do not understand the difference. Here is the relevant section from perlsub that briefly explains the difference:

       To call subroutines:

           NAME(LIST);    # & is optional with parentheses.
           NAME LIST;     # Parentheses optional if predeclared/imported.
           &NAME(LIST);   # Circumvent prototypes.
           &NAME;         # Makes current @_ visible to called subroutine.

Replies are listed 'Best First'.
Re^2: Ampersands and sub speed
by creamygoodness (Curate) on Oct 14, 2005 at 21:55 UTC
    Yes, you'd have to comment every place you use it -- because this is one of those subtleties you couldn't assume a maintenance programmer would grasp.
    --
    Marvin Humphrey
    Rectangular Research ― http://www.rectangular.com
    A reply falls below the community's threshold of quality. You may see it by logging in.

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://500373]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others having an uproarious good time at the Monastery: (4)
As of 2024-03-29 10:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found