diff options
Diffstat (limited to 'benchmark/so_random.rb')
-rw-r--r-- | benchmark/so_random.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/benchmark/so_random.rb b/benchmark/so_random.rb new file mode 100644 index 0000000000..a66b9e8e63 --- /dev/null +++ b/benchmark/so_random.rb @@ -0,0 +1,20 @@ +# 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 = 3_000_000 + +i = 0 +while i<N + i +=1 + gen_random(100.0) +end +# "%.9f" % gen_random(100.0) |