Messages in this thread | | | Date | Tue, 12 Mar 2002 14:17:38 +0000 | From | wli@holomorp ... | Subject | Re: 2.4.19pre2aa1 |
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On Tue, Mar 12, 2002 at 08:33:23AM -0500, Richard B. Johnson wrote: > This is a simple random number generator. It takes a pointer to your > own private long, somewhere in your code, and returns a long random > number with a period of 0xfffd4011. I ran a program for about a > year, trying to find a magic number that will produce a longer > period. > > You could add a ldiv and return the modulus to set hash-table limits. > ANDs are not good because, in principle, you could get many numbers > in which all the low bits are zero. > > > The advantage of this simple code is it works quickly. The disadvantages > are, of course, its not portable and a rotation of a binary number > is not a mathematical function, lending itself to rigorous analysis.
Would you mind explaining what the point of this is? AFAICT this is meaningless noise inspired by the words "/dev/random".
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