Re^2: Pass by Value does not work

Don't you mean:

my @xx_clone = map { [ @{$_} ] } @xx;
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G. Wade

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Re^3: Pass by Value does not work by Marshall (Canon) on Feb 23, 2009 at 00:02 UTC
I think we were both a little wrong..ooops.. `my @xx_clone = map { [ @$_ ] } @xx;` looks like that's better.. Thanks!!!.. UpdateI corrected post above. Thanks again. In general the {} are only needed when subscripts are involved. Another situation is say: @list = @{listref_returning_fun()}; In above posts, to get array back, my @lol = @{left_triangle(@xx)}; The above posts return reference to lists of lists. to get the LOL back, deference one time using @X= @{subroutine()} syntax.	[reply] [d/l]
Re^4: Pass by Value does not work by gwadej (Chaplain) on Feb 24, 2009 at 14:21 UTC
Although the `{}` are not necessary, I always use the `{}` when derefencing a reference and the `->` when dereferencing an element. That approach has always seemed clearer to me. But, TMTOWTDI always in Perl. G. Wade	[reply] [d/l] [select]