Dear Masters,
My code below attempts to do descending sort for the stringified numerical values. 
perl -w -MData::Dumper -e '
@old = ( "10.5 AA", "9 AC", "2 BB");  
@new = sort {$b <=> $a} @old; 
print Dumper \@new;'

[download]
It already gives the correct result, but with warning: 
Argument "10.5 AA" isn't numeric in sort at -e line 1.
Argument "9 AC" isn't numeric in sort at -e line 1.
Argument "2 BB" isn't numeric in sort at -e line 1.
$VAR1 = [
          '10.5 AA',
          '9 AC',
          '2 BB'
        ];

[download]
How can I modify my code above, without giving any warning?
I tried with @new = sort {$b cmp $a} @old;. Even though it gives no warning but the result is wrong.

---
neversaint and everlastingly indebted.......

In reply to Numeric Sort for Stringified Value (How to Avoid Warning) by neversaint

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