I thought you were referring to the off-by-one error, and didn't notice it also iterated backwards.

Solutions:
for ( -$#array..0 ) { ... $array[-$_] ... }
for ( my $i=@array; $i--; ) { ... $array[$i] ... }

In reply to Re^4: Efficient array element deletion by ikegami
in thread Efficient array element deletion by kennethk

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