[ns] Random number generator in ns

[Ulrich Fiedler <fiedler@tik.ee.ethz.ch>]

Hi all,

	I was somewhat amazed when looking at the implementation of the ns
random number 
generator in rng.{cc,h} when I did not want to seed it with 1,2,3 ...

It seems as if there is a table of predefined good seeds
in set_seed, but no otcl Interface to use it. Noticeable is also that
in the code, variables of type long are assigned to variables of types
integer. See e.g.:

seed = predef_seeds[seed] in method RNG::set_seed

So, has anyone out there looked how this random number generator
implementation
actually performs with seeds 1,2,3 and/or this predefined seeds
(e.g. checked autocorrelations of subsequences etc.) 
and/or fixed anything?

- Ulrich
-- 
Ulrich Fiedler   
fiedler@tik.ee.ethz.ch  http://www.tik.ee.ethz.ch/~fiedler 
ETHZ, TIK, ETZ G64.1, CH-8092 Zurich
Phone +41 1 632 7009   Fax   +41 1 632 1035