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Re: Re: my sub ?

by shotgunefx (Parson)
on Mar 25, 2002 at 20:00 UTC ( #154195=note: print w/ replies, xml ) Need Help??


in reply to Re: my sub ?
in thread my sub ?

Doesn't calling a sub reference with & imply the passing of your @_ ?

-Lee

"To be civilized is to deny one's nature."


Comment on Re: Re: my sub ?
Re: Re: Re: my sub ?
by maverick (Curate) on Mar 25, 2002 at 20:06 UTC
    Yes it does, but if you just stick $ref; out there by itself, or with () after it, perl doesn't get that that's supposed to be a function call and throws a syntax error.

    You pretty much have to have the & as far as I know.

    Or you could use $ref->(); It's monday and I'm being a blonde.

    Update:Thanks chromatic, Fletch, and shotgunefx for the clue-by-four-ing.

    /\/\averick
    perl -l -e "eval pack('h*','072796e6470272f2c5f2c5166756279636b672');"

      $ref->() works just fine. As would &{$ref}().

      Unless I want the behavior, I usually call a code ref with
      $ref->();
      Probably 9 out of 10 times you can get away with it but it can product subtle bugs. I wasn't originally aware of the implied passing of @_ and it was never a problem.. until.

      -Lee

      "To be civilized is to deny one's nature."

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