David Christensen wrote:
beginners@perl.org:
Hello,
I'm working on some classes with attributes that are array and hash
references, and am confused by what happens when I attempt to slice an
array or hash reference. For example:
7. "$ra->[0, 1, 2]" evaluates to $ra->[2].
$ra is a scalar that holds a reference to an array. $ra->[0]
dereferences an array element. To dereference an array slice use:
@{ $ra }[ 0, 1, 2 ]
8. "$ra->[0 .. 2]" produces two "Use of uninitialized value in range (or
flip)" warnings and evaluates to $ra->[1].
Same here:
@{ $ra }[ 0 .. 2 ]
John
--
Any intelligent fool can make things bigger and
more complex... It takes a touch of genius -
and a lot of courage to move in the opposite
direction. -- Albert Einstein
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