diff options
Diffstat (limited to 'ruby_1_9_3/benchmark/bm_so_nsieve.rb')
| -rw-r--r-- | ruby_1_9_3/benchmark/bm_so_nsieve.rb | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/ruby_1_9_3/benchmark/bm_so_nsieve.rb b/ruby_1_9_3/benchmark/bm_so_nsieve.rb deleted file mode 100644 index a65cc78233..0000000000 --- a/ruby_1_9_3/benchmark/bm_so_nsieve.rb +++ /dev/null @@ -1,35 +0,0 @@ -# The Computer Language Shootout -# http://shootout.alioth.debian.org/ -# -# contributed by Glenn Parker, March 2005 -# modified by Evan Phoenix, Sept 2006 - -def sieve(m) - flags = Flags.dup[0,m] - count = 0 - pmax = m - 1 - p = 2 - while p <= pmax - unless flags[p].zero? - count += 1 - mult = p - while mult <= pmax - flags[mult] = 0 - mult += p - end - end - p += 1 - end - count -end - -n = 9 # (ARGV[0] || 2).to_i -Flags = ("\x1" * ( 2 ** n * 10_000)).unpack("c*") - -n.downto(n-2) do |exponent| - break if exponent < 0 - m = (1 << exponent) * 10_000 - # m = (2 ** exponent) * 10_000 - count = sieve(m) - printf "Primes up to %8d %8d\n", m, count -end |