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Re: 2: Improving the efficiency of this piece of code (&FUNC; vs. FUNC(); vs. &FUNC(); ? )

by ybiC (Prior)
on Feb 25, 2001 at 08:44 UTC ( #60720=note: print w/ replies, xml ) Need Help??


in reply to Re (tilly) 1: Improving the efficiency of this piece of code
in thread Improving the efficiency of this piece of code

I've made a habit of calling functions as &FUNC(); to make them more readily visible.

The following explanations would seem to approve my approach.   Are there other factors I should take into account?   Reason(s) why I should forego the preceeding "&"?   Particular situations, perhaps?

perlman::perlsub tells me:
"& is optional with parentheses" and that "& makes current @_ visible to called subroutine".

perlman::perlvar says:
"within a subroutine the array @_ contains the parameters passed to that subroutine. See the perlsub manpage".
    thanks,
    Don
    striving for Perl Adept
    (it's pronounced "why-bick")

Update: After reading tye's post that Albannach linked below, and re-reading tilly's post above, I *think* I'm OK in continuing to &FUNC().


Comment on Re: 2: Improving the efficiency of this piece of code (&FUNC; vs. FUNC(); vs. &FUNC(); ? )
Re: Re: 2: Improving the efficiency of this piece of code (&FUNC; vs. FUNC(); vs. &FUNC(); ? )
by Albannach (Prior) on Feb 25, 2001 at 09:00 UTC
    Coincidentally I ran across this node today in which tye offers a nice summary of calling options.

    --
    I'd like to be able to assign to an luser

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