text: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  from . import UnaryOperation
  
  
  class neg(UnaryOperation):
      """
      Each block of the input data is negated bitwise. This is sometimes
      also called the bitwise complement or inverse.
      """
      def operate(self, a): return ~a
      def inplace(self, a): a ^= self.fmask
  