Class: Integer

Inherits:
Object
  • Object
show all
Defined in:
lib/ce-greenbutton/ruby_extensions.rb

Overview

Extending the Integer to add the utility method of extracting bits

Instance Method Summary collapse

Instance Method Details

#bits(options) ⇒ Object

Extracts bits in range from: to to:

Example:

10.bits(from:1, to:2)   # 1010
# => 1



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# File 'lib/ce-greenbutton/ruby_extensions.rb', line 10

def bits(options)
  from = options[:from] || 0
  to = options[:to]
  val = self
  unless from.nil?
    val = val >> from
  end
  unless to.nil?
    val = val & (2 ** (to - from + 1) - 1)
  end

  val
end