( though this next one not working is quite clearly and simply a bug in Perl 
@hash{ 1..keys %hash } = delete @hash{
    sort {$a<=>$b} keys %hash };

[download]

That was my thought until I realised that by the time the right-hand side of the assignment is evaluated, you've already deleted all the keys, so scalar keys %hash is zero. Whether you run the iterator from 0 as the OP asked or from 1 as your have it, it generates no keys and the values go in the bin.

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algorithm, algorithm on the code side." - tachyon

In reply to Re^2: re-key a hash (not so clear) by BrowserUk
in thread re-key a hash by Anonymous Monk

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