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>>>>> "Tom" == Tom Lane <[EMAIL PROTECTED]> writes:
Tom> Actually the odds are far better than that. If the range is
Tom> 2^31-1 then only about 2^-16th of the outputs should be less
Tom> than 2^15. So ten probes gives you a failure probability of
Tom> about 2^-160 not 2^-10.
Oops, 2^16 != 2^32 / 2.
So a dynamic test is not only possible but wouldn't cost to much at
configure time.
roland
- --
PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD Unix Software Solutions
[EMAIL PROTECTED] 76-15 113th Street, Apt 3B
[EMAIL PROTECTED] Forest Hills, NY 11375
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