(ar0n) Re (2): How to test equality of hashes?


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(ar0n) Re (2): How to test equality of hashes?

by ar0n (Priest)

on Jun 20, 2001 at 16:06 UTC ( [id://89972]=note: print w/replies, xml )

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in reply to andye Re: How to test equality of hashes?
in thread How to test equality of hashes?

PS If anyone can tell me how to get this hash-flattened-into-an-array behaviour without a sub, I'd be interested. I've been fiddling around with the syntax trying to get that.

if ( "@{[%hash1]}" eq "@{[$hash2]}" ) {
    # foo ...
}
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Re: (ar0n) Re (2): How to test equality of hashes?
by aufflick (Deacon) on Sep 14, 2004 at 06:42 UTC

I do flattening for comparison by shoving a hashref into an array ( @foo = %{$foo} ) and then sorting the array ( @foo = sort @foo ) and flattening that into a string.,p> The obvious problem with this is that if you have a hash where the keys/values were transposed then it would still appear equal. Similar situations will occur with other data anomolies.

Not a problem in my case, but worth remembering.

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