Contents

module Lrama
  module Bitmap
    def self.from_array(ary)
      bit = 0

      ary.each do |int|
        bit |= (1 << int)
      end

      bit
    end

    def self.to_array(int)
      a = []
      i = 0

      while int > 0 do
        if int & 1 == 1
          a << i
        end

        i += 1
        int >>= 1
      end

      a
    end
  end
end

Version data entries

27 entries across 27 versions & 1 rubygems

Version	Path
lrama-0.6.9	lib/lrama/bitmap.rb
lrama-0.6.8	lib/lrama/bitmap.rb
lrama-0.6.7	lib/lrama/bitmap.rb
lrama-0.6.6	lib/lrama/bitmap.rb
lrama-0.6.5	lib/lrama/bitmap.rb
lrama-0.6.4	lib/lrama/bitmap.rb
lrama-0.6.3	lib/lrama/bitmap.rb
lrama-0.6.2	lib/lrama/bitmap.rb
lrama-0.6.1	lib/lrama/bitmap.rb
lrama-0.6.0	lib/lrama/bitmap.rb
lrama-0.5.12	lib/lrama/bitmap.rb
lrama-0.5.11	lib/lrama/bitmap.rb
lrama-0.5.10	lib/lrama/bitmap.rb
lrama-0.5.9	lib/lrama/bitmap.rb
lrama-0.5.8	lib/lrama/bitmap.rb
lrama-0.5.7	lib/lrama/bitmap.rb
lrama-0.5.6	lib/lrama/bitmap.rb
lrama-0.5.5	lib/lrama/bitmap.rb
lrama-0.5.4	lib/lrama/bitmap.rb
lrama-0.5.3	lib/lrama/bitmap.rb