Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery

Re^4: while loop

by blazar (Canon)
on Apr 26, 2006 at 10:23 UTC ( #545741=note: print w/replies, xml ) Need Help??

in reply to Re^3: while loop
in thread while loop

Well, perldoc perlsub explains it all. In brief, do not use the &-form unless you know what you're doing, i.e. either circumvent prototypes, if you're giving an explicit arg list or make current @_ visible to the sub, as you say.

Replies are listed 'Best First'.
Re^5: while loop
by gellyfish (Monsignor) on Apr 26, 2006 at 10:28 UTC

    ... or when dereferencing a CODEREF or a symbolic reference to a subroutine name, or taking a reference to a subroutine, or when using the subroutine as an argument to goto ...


      Indeed! And well done to point out - although we were talking about sub calls. However when dereferencing I'd recommend using (again: unless one knows what she's doing and has good reasons to!)


      This is not merely cosmetic: I actually met a situation in which a module using &$subref(@args) caused a bad interaction with some subs.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://545741]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (5)
As of 2018-05-21 06:23 GMT
Find Nodes?
    Voting Booth?