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(root@tiger:~)$ perl -e'$x[2147483645]++'
Out of memory!
(root@tiger:~)$ perl -e'$x[2147483646]++'
Out of memory!
(root@tiger:~)$ perl -e'$x[2147483647]++'
Segmentation fault
(root@tiger:~)$ perl -e'$x[2147483648]++'
Modification of non-creatable array value attempted, subscript -2147483648 at -e line 1.
(root@tiger:~)$ perl -e'$x[2147483649]++'
Modification of non-creatable array value attempted, subscript -2147483647 at -e line 1.
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