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uneven abs!

by larryk (Friar)
on May 29, 2001 at 18:52 UTC ( #83964=note: print w/ replies, xml ) Need Help??


in reply to Re (tilly) 1: Closest-value-in-list Golf!
in thread Closest-value-in-list Golf!

how come you use ( ) on one abs but not the other? :-)

sub g {(sort{abs$a-$_[1]<=>abs$b-$_[1]}@{$_[0]})[0]} # 44 chars
Update:
pop and no ref...
sub g {$n=pop;(sort{abs$a-$n<=>abs$b-$n}@_)[0]} # 39 chars
fantastic - that's exactly half my original

"Argument is futile - you will be ignorralated!"


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Re (tilly) 1: uneven abs!
by tilly (Archbishop) on May 29, 2001 at 20:36 UTC
    For future reference, I found your spec unclear. In the end I settled on "2 parameters" as being the clearest statement. But it would help in the future if you gave sample test code using the function. Then there can be no doubt.

    However if I am allowed to rearrange the arguments, I find it more natural that any special arguments should come first in the list. Giving a 38 character solution:

    sub g { (sort{abs$a-$_[0]<=>abs$b-$_[0]}@_)[1] }
      Apologies for my ambiguous description. Please take a look at the update I have made and tell me if I make any more sense.

      ps. 38 chars - good job!

      "Argument is futile - you will be ignorralated!"

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