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Re^5: More efficient dereferencing of a subroutine return

by Anonymous Monk
on Feb 18, 2013 at 00:24 UTC ( #1019246=note: print w/ replies, xml ) Need Help??


in reply to Re^4: More efficient dereferencing of a subroutine return
in thread More efficient dereferencing of a subroutine return

That is what you said, but look at the OP's code, its always  return \@array which can never be undef

an empty array is better than undef


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Re^6: More efficient dereferencing of a subroutine return
by parv (Priest) on Feb 18, 2013 at 00:49 UTC

    It seems you and I read the representation of the problem differently. Your reply presumes that every return from sub is always a return of an array reference. (If that promise is made to the user of the sub, then I have no disagreement with direct dereferencing of the return value.) I think of the value returned being an array reference where possible; else, nothing or undef is returned.

      Look, no temporaries, no fatal :) my @stuff = eval { @{ func() } };
        You have my vote.-)
        You have my vote.-)

        Can you please stop being Anon and create an account?

        It helps those of us ( read - me ) who want to follow your, often informative, responses.

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