diff options
author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
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committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
commit | 0dc342de848a642ecce8db697b8fecd83a63e117 (patch) | |
tree | 2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/benchmark/bm_so_sieve.rb | |
parent | ef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff) |
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/benchmark/bm_so_sieve.rb')
-rw-r--r-- | trunk/benchmark/bm_so_sieve.rb | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/trunk/benchmark/bm_so_sieve.rb b/trunk/benchmark/bm_so_sieve.rb new file mode 100644 index 0000000000..dbe2bfa63d --- /dev/null +++ b/trunk/benchmark/bm_so_sieve.rb @@ -0,0 +1,24 @@ +# from http://www.bagley.org/~doug/shootout/bench/sieve/sieve.ruby +num = 40 +count = i = j = 0 +flags0 = Array.new(8192,1) +k = 0 +while k < num + k+=1 + count = 0 + flags = flags0.dup + i = 2 + while i<8192 + i+=1 + if flags[i] + # remove all multiples of prime: i + j = i*i + while j < 8192 + j += i + flags[j] = nil + end + count += 1 + end + end +end +count |