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I don't understand your point (and I'm too much in a hurry ATM to investigate your code)

Keys of a hash are always unique, in my code collisions of random numbers are simply ignored.

update

> That doesn't guarantee unique values.

maybe this is clearer:

DB<107> $seen{int rand 10}=1 for 1 .. 1000000 => "" DB<108> keys %seen => (6, 3, 7, 9, 2, 8, 1, 4, 0, 5)

update
one could argue that the order of hash -keys isn't random but that wasn't part of the question.

Otherwise thats a good occasion to use shuffle or pushing into an array (but this implies reseeding rand every time)

Cheers Rolf

( addicted to the Perl Programming Language)


In reply to Re^3: Non-Repetitive Random Numbers by LanX
in thread Non-Repetitive Random Numbers by Anonymous Monk

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