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ruby--ruby/benchmark/bm_so_random.rb

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# from http://www.bagley.org/~doug/shootout/bench/random/random.ruby
IM = 139968.0
IA = 3877.0
IC = 29573.0
$last = 42.0
def gen_random(max)
(max * ($last = ($last * IA + IC) % IM)) / IM
end
N = 1000000
i=0
while i<N
i+=1
gen_random(100.0)
end
# "%.9f" % gen_random(100.0)