-- This file is  free  software, which  comes  along  with  SmartEiffel. This
-- software  is  distributed  in the hope that it will be useful, but WITHOUT
-- ANY  WARRANTY;  without  even  the  implied warranty of MERCHANTABILITY or
-- FITNESS  FOR A PARTICULAR PURPOSE. You can modify it as you want, provided
-- this header is kept unaltered, and a notification of the changes is added.
-- You  are  allowed  to  redistribute  it and sell it, alone or as a part of
-- another product.
--       Copyright (C) 1994-2002 LORIA - INRIA - U.H.P. Nancy 1 - FRANCE
--          Dominique COLNET and Suzanne COLLIN - SmartEiffel@loria.fr
--                       http://SmartEiffel.loria.fr
--
class COUNTER
--
-- Simple counter object (useful as a once function).
--
feature

   value: INTEGER
	 -- The `value' of the counter.

   increment is
      do
         value := value + 1
      ensure
         value = 1 + old value
      end

   decrement is
      do
         value := value - 1
      ensure
         value + 1 = old value
      end

   reset is
      do
         value := 0
      ensure
         value = 0
      end

   append_in(buffer: STRING) is
	 -- Append the `value' of the counter in the `buffer'.
      do
         value.append_in(buffer)
      end

end -- COUNTER
